Journal articles: 'Electrocoagulation'

1

Hu, Zhi Jun, and You Ming Li. "A Combined Electrocoagulation-Electrooxidation Treatment on CTMP Wastewater." Advanced Materials Research 233-235 (May 2011): 619–22. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.619.

Full text

Abstract:

A synergistic combination of electrocoagulation and electrooxidation was introduced for the treatment of CTMP wastewater in which most of the colloids and charged species had been removed by electrocoagulatio, then small organics could be mineralized by electrooxidation effectively.The mainly influencing factors for electrocoagulation such as electrolyte, sodium chloride dosage, voltage intensity, current intensity and reaction time were assessed. The optimum conditions were obtained, and the results showed that sodium chloride dosage of 1g/L, voltage intensity of 7.5V, current intensity of 0.6A, 60 min reaction time, its color removal rate was above 90% and CODCr removal rate was about 40%. After electrocoagulation the electrooxidation could further reduce CODCr above 80%.

APA, Harvard, Vancouver, ISO, and other styles

2

Pebriana, Ratna Budhi, Endang Lukitaningsih, and Siti Mufidatul Khasanah. "Dechlorophyllation of Cosmos caudatus Kunth., Morinda citrifolia, and Mangifera indica L. Leaves Methanolic Extract by Electrocoagulation Technique." Majalah Obat Tradisional 22, no. 3 (December 21, 2017): 190. http://dx.doi.org/10.22146/mot.31555.

Full text

Abstract:

The present of chlorophyll is not expected in the isolation process of plant active constituent. Electrocoagulation is a potential dechlorophyllation method. This research aims to know the effectivity of electrocoagulation in the dechlorophyllation process of Cosmos caudatus Kunth., Morinda citrifolia, and Mangifera indica L. leaves methanolic extract as well as the effect to the total phenolic content. Electrocoagulation are performed using copper, silver, aluminum and iron plates as the electrode. Dechlorophyllation by extraction using n-hexane is performed as reference. The % absorbance of chlorophyll and % of total phenolic content of dechlorophyllated samples are measured spectrophotometrically. Electrocoagulation process reduces % absorbance of chlorophyll in Cosmos caudatus Kunth., Morinda citrifolia, and Mangifera indica L. leaves methanolic extract. The more the duration of electrocoagulaton process the lower the % absorbance of chlorophyll obtained. % absorbance of chlorophyll of the electrocoagulated extract according to paired t-test (P=0.95) are significantly different with the previous. One way ANOVA continued with LSD (P=0.95) shows that the % absorbance of chlorophyll from the electrocoagulated extract are significantly different with those extracted with n-hexane. Electrocoagulation process reduces total phenolic content along with duration of electrocoagulation.

APA, Harvard, Vancouver, ISO, and other styles

3

Kalivel, Parameswari, Jegathambal Palanichamy, and Mano Magdalene Rubella. "Potential of Ti2O3/Zn Electrodes versus Zn by Electrocoagulation Process for Disperse Dye Removal." Asian Journal of Chemistry 31, no. 8 (June 28, 2019): 1835–41. http://dx.doi.org/10.14233/ajchem.2019.22097.

Full text

Abstract:

Electrocoagulation methods are being used for the alternative treatment process for the remediation of textile waste water. This work primarily deals with the treatment of textile dyeing waste water followed by the utilization of waste material. The purpose of the proposed study is to evaluate the potential of electrocoagulatison process using Ti2O3/Zn electrode prepared by spray pyrolysis using TiCl3 and compared the performance with Zn electrodes. The surface morphology, structural analysis and percentage composition of the elements of the Ti2O3/Zn electrode was studied by SEM, XRD and EDS analysis. The efficiency of electrocoagulation treatment process to treat synthetic waste water containing Coralene Navy RDRLSR, Coralene Red 3G, Rubru RD GLFI dye was studied for the effect of operational parameters. The result indicates that this process was able to achieve colour removal (97.2 %) at pH 8.5, with 34.42 % less energy consumption with Ti2O3/Zn compared with zinc electrodes.

APA, Harvard, Vancouver, ISO, and other styles

4

Hrytsiuk, Ivanna Mykhailivna, Andrii Safonyk, Petro Lakus, and Vasyl Pasichnyk. "Modelling of the process of sewage treatment by electrocoagulation method in the temperature conditions." Modeling, Control and Information Technologies, no. 3 (November 5, 2019): 59–60. http://dx.doi.org/10.31713/mcit.2019.63.

Full text

Abstract:

The paper suggests an approach to modelling the electrocoagulation process taking into account the ratio between the values of the parameters which characterize the domination of convective and mass-exchange components of the process over diffusion. Computer simulation of the distribution of iron concentration inside the electrocoagulator that allows predicting various hydrodynamic phenomena such as internal recirculation that affects the formation of a coagulant was conducted

APA, Harvard, Vancouver, ISO, and other styles

5

Rahman, Nazzeri Abdul, Allene Albania Linus, Calvin Jose Jol, Nur Syahida Abdul Jalal, Wan Wafi Shahanney, and Nooranisha Baharudin. "Characterization of Peat Water Electrocoagulation Flocs from Sarawak Southern Region." Applied Mechanics and Materials 920 (March 5, 2024): 197–208. http://dx.doi.org/10.4028/p-4vuy8n.

Full text

Abstract:

Sarawak located in Borneo is endowed with the vast availability of peat water sources, particularly for the state southern region. Several investigations have shown that electrocoagulation treatment with aluminium electrodes is feasible to treat peat water in which the quality is comparable to the National Water Quality Standard (NWQS). Even though electrocoagulation treatment is feasible to treat peat water, the characteristics of peat water electrocoagulation flocs have not been reported. As such, this study aims to investigate the characteristics of the electrocoagulation flocs from peat water derived from the Sarawak southern region by using batch electrocoagulation treatment. The objectives of this study are to conduct an experimental study analysis of and identify the minerals on the electrocoagulation flocs along with operating energy cost analysis of peat water batch electrocoagulation treatment. Consequently, this study has found that reaction time and current density affect the production of flocs in which the amount of flocs increases with the increasing reaction time and current density. The flocs produced are found to consist of a large fraction of oxygen (O), carbon (C), iron (Fe), and aluminium (Al) along with a small fraction of potassium (K), magnesium (Mg), calcium (Ca) and Silicon (Si). The presence of Al observed in the flocs is due to the aluminium hydroxide generated during the electrocoagulation process. The total operating cost for peat electrocoagulation with a current density of 5A and reaction time of 20 minutes is about RM0.31 per m3. As a result, the electrocoagulation of peat water process is able to treat peat water as well as produce flocs in which earth elements and heavy metals could be recovered.

APA, Harvard, Vancouver, ISO, and other styles

6

Khuê, Võ Anh. "RESEARCH ON ELECTROCHEMICAL METHODS TO REMOVE FLUORIDE FROM WATER." Hue University Journal of Science: Natural Science 126, no. 1C (October 24, 2017): 85. http://dx.doi.org/10.26459/hueuni-jns.v126i1c.4623.

Full text

Abstract:

<p>The use of electrochemical methods such as micro-electrolysis, electrocoagulation, and micro-electrolysis combined with electrocoagulation to remove fluoride from water were studied in this paper. The results indicated that the micro-electrolysis (using Fe/C particles) and the electrocoagulation (using iron electrodes) are not suitable for removal of fluoride from water solution. The electrocoagulation method with aluminum electrodes for removal efficiency of fluoride is very good. But it is not as good as the micro-electrolysis (using Fe/C particles) combined with the electrocoagulation method (using aluminum electrodes). At the optimal condition of the micro-electrolysis (using Fe/C particles) combined with the electrocoagulation method (using aluminum electrodes) and the initial concentration of fluoride ion of 50 mg/L, the removal efficiency of fluoride ion is 94.03% and the residual concentration is 2.986 mg/L.</p>

APA, Harvard, Vancouver, ISO, and other styles

7

Sampliner, Richard E. "Multipolar electrocoagulation." Gastrointestinal Endoscopy Clinics of North America 13, no. 3 (July 2003): 449–55. http://dx.doi.org/10.1016/s1052-5157(03)00048-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Setyawati, Harimbi, Dinda Galuh, and Erni Yunita. "EFFECT OF ELECTRODE DISTANCE AND VOLTAGE ON CR, COD, and TSS REDUCTION IN WASTE WATER TANNING INDUSTRY USING ELECTROCOAGULATOR BATCH." Journal of Sustainable Technology and Applied Science (JSTAS) 2, no. 1 (May 23, 2021): 24–30. http://dx.doi.org/10.36040/jstas.v2i1.3574.

Full text

Abstract:

Wastewater from the tanning industry has relatively high Cr, COD, and TSS metal pollutants. According to the regulation of the Minister of Environment of the Republic of Indonesia No. 5 of 2014 concerning the quality standard of wastewater for industrial activities, the standard quality value is 0.6 mg/L of Cr, 110 mg/L of COD, and 60 mg/L of TSS. This research aimed to determine the effect of electrode distance and voltage on reducing Cr, COD, and TSS levels in the wastewater from the tanning industry using batch electrocoagulation. The electrocoagulation method used in this research with fixed variables was the number of 2 plate electrodes and the changing variables; it was the distance between the electrodes (1, 1.5, 2, 2.5 and 3 cm) and the electric voltage (3, 6 and 9 volts). The research was conducted on a laboratory scale in batches with a capacity of 10 litres. The electrodes used were aluminium (Al) as the anode and the cathode in plates. The analysis showed that the highest percentage reduction in COD reached 88.8889% and the highest Cr reached 83.4712% occurred at a distance of 2 cm with 9 volts voltage, the highest percentage reduction in TSS reached 85.0746% with a distance of 3 cm with 9 volts voltage. From the results of this research, it could be concluded that the electrocoagulation method in the batch electrocoagulator was efficient enough to reduce the levels of Cr, COD, and TSS with variable electrode distance and electric voltage.

APA, Harvard, Vancouver, ISO, and other styles

9

Akter, Hasina, Hasina Akhter Simol, and Shaila Salahuddin. "Treatment of Wastewater Containing Brilliant Orange H2R and Brilliant Red M5B by Electrocoagulation." Dhaka University Journal of Science 64, no. 2 (July 31, 2016): 153–56. http://dx.doi.org/10.3329/dujs.v64i2.54494.

Full text

Abstract:

Treatment of dyeing wastewater containing reactive Brilliant Orange H2R and Brilliant Red M5B dyes were investigated by using electrocoagulation process. The experimental results were analysed in terms of percent removal of dye with time. Electrocoagulation of dye containing wastewater was carried out in a two-electrode monopolar electrocoagulation cell using iron as sacrificial anode and 0.01 M NaCl as internal electrolyte in which the electrolyte concentration was maintained constant during the experiment. In electrocoagulation the effects of concentration of dye and applied current strength on dye removal efficiency were tested and found that both have significant effects on the electrocoagulation of dye from wastewater. Dhaka Univ. J. Sci. 64(2): 153-156, 2016 (July)

APA, Harvard, Vancouver, ISO, and other styles

10

L.Toruan, Ino Eben Lasroha, Sirajudin Haji Abdullah, Sukmawaty Sukmawaty, and Diah Ajeng Setiawati. "Application of Electrocoagulation for Wastewater Treatment of Tofu Production." Protech Biosystems Journal 1, no. 1 (June 30, 2021): 9. http://dx.doi.org/10.31764/protech.v1i1.6001.

Full text

Abstract:

This study aims to process tofu wastewater by using the electrocoagulation method and determine TSS, TDS, and pH efficiency. The Electrocoagulation system was designed based on an electrocoagulation general standard called batch systems. This study used voltage variations of 10, 20, and 30 volts and exposure time during 60, 120, and 180 minutes. The parameters observed were Total Suspended Solid (TSS), Total Dissolved Solid (TDS), and acidity (pH). This study used fresh tofu wastewater with temperature 40-50oC, with a volume of 2000 ml wastewater in one time of electrocoagulation process. The results showed that the designed electrocoagulation system could reduce TSS concentration until 72.2% and TDS 15.4% and increasing pH approaching the neutral value. However, the concentration value of TSS and TDS was still above the quality standard. Initial characteristics of tofu wastewater with pH 4.6, TSS 2396.4 mg/L, and TDS 2975.1 mg/L after electrocoagulation process gained pH values 6.5, TSS 1072.7 mg/L, and TDS 2621.6 mg/L.

APA, Harvard, Vancouver, ISO, and other styles

11

Regea Mengistu, Lelisa, Zerihun Asmelash Samue, Chali Dereje Kitila, and Abreham Bekele Bayu. "Comparison of sono-direct and sono-alternate current electro-coagulation processes for removal of color and turbidity from domestic wastewater." Environmental Health Engineering and Management 9, no. 2 (May 21, 2022): 177–88. http://dx.doi.org/10.34172/ehem.2022.19.

Full text

Abstract:

Background: Nowadays there is a problem related to wastewater handling which is released from different activities. Electrocoagulation has been a dominant treatment method for wastewater treatment. There are different forms of electrocoagulation methods for wastewater treatment. Nevertheless, there was no comparison made for the removal efficiency of the sono-alternate current (SAC), alternate current (AC), sono-direct current (SDC), and direct current (DC) electrocoagulation process. Methods: The efficiency of electrocoagulation method was compared for removal of color and turbidity from Jimma University domestic wastewater. Batch reactor DC/AC electrocoagulation cell was used to determine the removal efficiency. During the comparison, the response surface methodology (RSM) was used to analyze and optimize the data taken from the laboratory. In addition, ANOVA was used to analyze the interaction effects of different parameters. Results: The removal of color and turbidity from domestic wastewater was about 97.53% and 95.28% respectively, using direct current electrocoagulation (DCE). For alternate current electrocoagulation (ACE), the removal of color and turbidity was 98.35% and 96.12%, respectively. The removal of color and turbidity for sono-DCE (SDCE) was obtained to be 98.55% and 98.27%, respectively and for sono-ACE (SACE), the removal of color and turbidity was 99.95% and 99.76%, respectively at the optimum experimental conditions of chemical oxygen demand (COD) 960 g/L, initial wastewater pH of 6.8, the current density of 0.4 A/dm2 , inter-terminal spacing of 1 cm, and the association of electrode of Al-Al. Conclusion: According to the findings of this study, it can be concluded that, the SAC electrocoagulation method is the best and promising technique compared with all other electrocoagulation methods.

APA, Harvard, Vancouver, ISO, and other styles

12

Makarov, Yevhen, Volodymyr Andronov, and Yuliya Danchenko. "Electrochemical Formation of Aluminum Coagulants for Dairy Wastewater Treatment." Key Engineering Materials 925 (July 11, 2022): 179–86. http://dx.doi.org/10.4028/p-i2s5ht.

Full text

Abstract:

Researches of chemical-technological parameters of electrochemical production of aluminum-based coagulants for electrocoagulation wastewater treatment of milk processing enterprises have been carried out. The impact of pH and the timing of the electrocoagulation process was studied in two cases of the implementation of the technological process: with the addition of an alkaline additive before and after the electrocoagulation treatment. The mechanism of the coagulation action of aluminum compounds formed as a result of electrocoagulation has been studied. It has been established that the addition of an alkaline additive after electrocoagulation is more effective. At the same time, the degree of wastewater treatment remains quite high. This will ensure energy savings and will positively affect the environmental and economic assessment of the technology.

APA, Harvard, Vancouver, ISO, and other styles

13

Abdul Rahman, Nazeri, Nurhidayah Kumar Muhammad Firdaus Kumar, Umang Jata Gilan, Elisa Elizebeth Jihed, Adarsh Phillip, Allene Albania Linus, Dasima Nen@Shahinan, and Verawaty Ismail. "Kinetic Study & Statistical Modelling of Sarawak Peat Water Electrocoagulation System using Copper and Aluminium Electrodes." Journal of Applied Science & Process Engineering 7, no. 1 (April 30, 2020): 439–56. http://dx.doi.org/10.33736/jaspe.2195.2020.

Full text

Abstract:

Due to insufficient water supply, the residents of the rural area of Sarawak are forced to use peat water as daily use for domestic water. The consumption of untreated peat water can lead to various waterborne diseases such as diarrhoea, and other serious illnesses such as typhoid and dysentery. Water treatment system such as electrocoagulation system can be developed to improve the water quality of the peat water as electrocoagulation requires simple equipment that can be operated easily, no usage of chemicals coagulant, producing less sludge and cost-effective treatment system. The main aim of this study is to develop a kinetic study and statistical modelling for both batch and continuous electrocoagulation processes of peat water treatment in Sarawak using aluminium and copper electrodes. This study focuses on the peat water treatment using electrocoagulation system. The fabricated electrocoagulation system is designed according to the characteristics in which the technology for building and the material used for constructing the electrocoagulation system should be available locally, the electrocoagulation system should be easy to fabricate and maintain, as well as low cost for construction and operation. For this study, Response Surface Methodology in Minitab software and Microsoft Excel are used for kinetic studies, statistical modelling, and process optimization. Process optimization is carried out to minimize energy consumption as well as the turbidity and TSS level. The optimum conditions for batch and continuous electrocoagulation system are 14.899 A/m2 and 41.818 min, and 3.861 A/m2 and 37.778 min respectively.

APA, Harvard, Vancouver, ISO, and other styles

14

Sushila, Sushila, and Parveen Kumar. "Pollution Load Reduction from Domestic Wastewater with Electrocoagulation Process for Agricultural Reuse." Indian Journal Of Science And Technology 17, no. 14 (April 3, 2024): 1409–18. http://dx.doi.org/10.17485/ijst/v17i14.168.

Full text

Abstract:

Objectives: The present study is aimed to investigate electrocoagulation of domestic wastewater and assessment of pollutants removal efficiency for potential reuse in agriculture. Methods: The electrocoagulation treatment of domestic wastewater with Fe – Fe electrodes was performed under optimal conditions of pH (8.0), current density (0.6 mA/cm2), treatment time (45 minutes), and NaCl dose (2.8 g/L) in a slurry type of reactor. The primary clarified and biotreated domestic wastewaters were subjected to electrocoagulation with Direct Current (DC) as power source. Findings: There was observed higher pollutants removal efficiency from the biotreated wastewater as compared with the primary clarified wastewater after electrocoagulation. The treated wastewaters showed significant removal of pollutants in terms of BOD (79.5% – 87.9%), COD (86.8% – 89.5%), TDS (87.4% – 89.9%), TSS (66.7% – 75.3%), conductivity (77.8% – 78.4%), turbidity (74% – 81.2%), colour (77.7% – 86.2%), nitrates (44.1% – 51.7%), and phosphates (48.7% – 55.9%) after electrocoagulation treatment. Electrocoagulation considerably improved the biodegradability index of the primary clarified (0.59 to 0.92) and biotreated (0.69 to 0.8) wastewaters. This indicates easy removal of the pollutants further by biological processes in the aquatic ecosystems. Electrocoagulation demonstrated potential for removal of pollution from the domestic wastewater for productive reuse in agriculture and urban areas. Novelty: There exist few studies of use of electrochemical process for treatment and reuse of domestic wastewater. The treated waters complied with the regulatory standards and had satisfactory quality for reuse in agriculture and urban activities. Keywords: Electrocoagulation, Domestic wastewater, Biodegradability index, Agricultural reuse, National Green Tribunal

APA, Harvard, Vancouver, ISO, and other styles

15

Haan, Teow Yeit, Chua Siew Fen, Muhammad Faizal Radzi, and Uwendiran Ganasen. "Comparative Study for Lake Water Remediation: Chemical Coagulation and Electrocoagulation." Jurnal Kejuruteraan si1, no. 6 (November 30, 2018): 81–87. http://dx.doi.org/10.17576/jkukm-2018-si1(6)-10.

Full text

Abstract:

Water scarcity worldwide has reached the alarming rate and received the greatest attention. The increasing of pressure attributed by world water demand had inspired researchers on use of alternative water sources such as wastewater, a new norm. However, it is a critical need to find out the proper treatment technique to treat the wastewater. In this study, the reclamation and reuse of lake water (wastewater source) was conducted through chemical coagulation and electrocoagulation processes. Aluminium sulphate Al2(SO4)3 was utilized in this study as the coagulant for chemical coagulation process. The dosage of Al2(SO4)3 was manipulated in the range of 2 mg/L - 8 mg/L to investigate the optimal Al2(SO4)3 dosage which brings to greatest removal of chemical oxygen demand (COD), colour, and turbidity from the collected wastewater sample. Whereas, electrocoagulation process was conducted in a lab-scale electrocoagulation reactor with two parallel monopolar aluminium electrodes. The electrocoagulation operation duration and DC power supply to the electrocoagulation reactor were varied in studying the performance of electrocoagulation process. Results obtained from this study depicted that both chemical coagulation and electrocoagulation processes were attractive for the treatment of lake water. However, chemical coagulation presented greater removal efficiency compared to electrocoagulation where it managed to remove COD, colour, and turbidity up to 93.04%, 93.86%, and 93.98%, respectively at the optimal Al2(SO4)3 dosage of 6 mg/L. Sweep coagulation which comprises the adsorption and entrapment of pollutant particles onto aluminium hydroxides was the major mechanism for flocs formation in chemical coagulation process. Besides, the percentage of removal for electrocoagulation process is due to the applied voltage and operation duration. The percentage removal of COD, colour, and turbidity were increased with the increment of DC power supply voltage and pro-longed the operation duration. Results shown that the highest percent of removal is achieved by electrocoagulation reactor operated at 10 V for 45 min in this study, where the percentage of removal for COD, colour, and turbidity was 73.91%, 92.98%, and 71.44%, respectively.

APA, Harvard, Vancouver, ISO, and other styles

16

Chakraborty, Shubhrasekhar, Pratap Kumar Mohanty, Jawed Iqbal, and R. Naresh Kumar. "Can electrocoagulation be an effective post-treatment option for SBR treated landfill leachate and municipal wastewater mixture?" Journal of Water, Sanitation and Hygiene for Development 10, no. 1 (February 17, 2020): 86–95. http://dx.doi.org/10.2166/washdev.2020.057.

Full text

Abstract:

Abstract A combined process of sequencing batch reactor (SBR) and electrocoagulation for co-treatment of landfill leachate and municipal wastewater was assessed. SBR was used in the first instance for co-treatment of 20% (v/v) landfill leachate and municipal wastewater mixture. Effluent from SBR was subjected to electrocoagulation for post-treatment, with aluminum as sacrificial anode and stainless steel as cathode. Direct current at a density of 257 A/m2 was applied during the electrocoagulation process. In electrocoagulation, spacing between the two electrodes was varied at 5 and 7 cm to assess its influence on treatment efficiency. SBR was effective to remove 65% chemical oxygen demand (COD), 77% total suspended solids (TSS), 89% ammonia, 80% nitrate, 64% phosphate and post-treatment by electrocoagulation resulted in an overall 98% COD, 98% TSS and 99% ammonia, nitrate and phosphate reduction efficiency with 5 cm of electrode spacing. Respectively, final COD, ammonia and TSS was 37, 1 and 98 mg/L after 150 min of electrocoagulation which met the Indian standards for the discharge of treated wastewater. The results highlight that SBR followed by electrocoagulation as post-treatment can be an effective option for the treatment of landfill leachate and municipal wastewater mixture.

APA, Harvard, Vancouver, ISO, and other styles

17

Khairunisa, Nafisa, Suhartana Suhartana, and Damar Nurwahyu Bima. "Electrocoagulation Method Using Al/Graphite Electrode for Removal Surfactant LAS (Linear Alkylbenzene Sulfonate)." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 18, no. 3 (September 12, 2021): 443–52. http://dx.doi.org/10.14710/presipitasi.v18i3.443-452.

Full text

Abstract:

An increasing number of laundries have caused water contamination by surfactants. One commonly used surfactant is LAS (Linear Alkylbenzene Sulfonate), a material difficult to decompose, polluting the environment. Electrocoagulation was carried out using Al/Graphite electrode, applied to LAS surfactant artistic waste. This study aims to determine the functional ability of the Al/Graphite electrode in reducing surfactant through electrocoagulation. Various variations were carried out, on the voltage parameters (3,6,9,12) Volt; NaCl concentration (0;0.4;0.8;1.2;1.6;2) g/L; pH (3,5,7,9,11) and time (10,20,30,40,50) minutes. To analyze the changes in the sample before and after electrocoagulation, characterization was carried out using a UV-VIS spectrophotometer and FTIR. A kinetic study was conducted to determine the reaction order of electrocoagulation surfactant. Based on a study, removal at condition voltage 9 Volt, initial pH of the solution 9, electrocoagulation time 50 minute, and the addition of NaCl electrolyte 2 g/L, obtained surfactant concentration was 0,785 mg/L with removal efficiency 97,45%. UV-VIS spectra show a decreased absorption at a wavelength of 653 nm. FTIR spectra showed the presence of absorption on the same functional groups, which indicated that most of the surfactant pollutants could be separated from the wastewater through the electrocoagulation process. The second-order reaction was obtained in the surfactant electrocoagulation process.

APA, Harvard, Vancouver, ISO, and other styles

18

Shahedi, Ahmad, Ahmad Khodadadi Darban, Ahmad Jamshidi-Zanjani, Fariborz Taghipour, and Mehdi Homaee. "Simultaneous Removal of Cyanide and Heavy Metals Using Photoelectrocoagulation." Water 15, no. 3 (February 1, 2023): 581. http://dx.doi.org/10.3390/w15030581.

Full text

Abstract:

One of the new methods used to remove the contaminants from effluent is the electrocoagulation method, which is sometimes combined with other methods to increase the removal efficiency of contaminants. To simultaneously remove nickel, cyanide, zinc, and copper, the combined method of photo-electrocoagulation was used along with an oxidizing agent, namely hydrogen peroxide (Hp). In addition, the effects of factors affecting the removal efficiency were studied, including pH, electrode arrangement, and current intensity. An electric current of 300 mA at a pH of 10 for 60 min, Fe-SS electrodes with a distance between them of 5 cm, and hydrogen peroxide at a rate of 4 mg/L were the ideal conditions needed to accomplish the photo-electrocoagulation-oxidation process. According to these study findings, when the combined method of photocatalyst-electrocoagulation-oxidation (Hp) was used, the highest removal efficiencies of nickel, cyanide, zinc, and copper were 85, 96, 94, and 98%, respectively. The results showed that using the combined photo-electrocoagulation-oxidation method increased the efficiency of simultaneous removal of pollutants by 10% compared to conventional electrocoagulation method. The reason for the increase in removal efficiency is the production of hydroxyl radicals simultaneously with the formation of coagulants produced by electrocoagulation process.

APA, Harvard, Vancouver, ISO, and other styles

19

Hermon, S., D. Grange, Y. Pellet, G. Lloret, S. Oyonarte, F. Bosch, and M. Coste. "Zero Liquid Discharge approach in plating industry: treatment of degreasing effluents by electrocoagulation and anodic oxidation." Water Science and Technology 58, no. 3 (August 1, 2008): 519–27. http://dx.doi.org/10.2166/wst.2008.690.

Full text

Abstract:

Degreasing waste effluents issued from a surface treatment plant were treated by electrochemical techniques in an attempt to reduce COD so that clean water can be returned to the rinse bath. Electrocoagulation, both with iron and aluminium anodes, and anodic oxidation with boron doped diamond (BDD) anodes were tested. In the electrocoagulation tests, the nature of the anodes did not impact significantly the reduction of COD. Electrocoagulation showed good COD removal rates, superior to 80%, but it was not able to reduce COD down to low levels. Anodic oxidation was able to reduce COD down to discharge limits; the oxidation efficiency was superior to 50%. Economical calculations show that anodic oxidation is best used as a polishing step after electrocoagulation. The bulk of the COD would be reduced by electrocoagulation and, then, anodic oxidation would reduce COD below discharge limits. The maximum treatable flow is somewhat hindered by the small sizes of current BDD installation but it would reach 600 m3/year if anodic oxidation is coupled with electrocoagulation, the operational cost being 2.90 €/m3.

APA, Harvard, Vancouver, ISO, and other styles

20

Jiang, J. Q., Y. Xu, J. Simon, K. Quill, and K. Shettle. "Removal of boron (B) from waste liquors." Water Science and Technology 53, no. 11 (May 1, 2006): 73–79. http://dx.doi.org/10.2166/wst.2006.339.

Full text

Abstract:

This paper explores the use of electrocoagulation to remove boron from waste effluent in comparison with alum coagulation. In treating model test wastes, greater boron removals were achieved with electrocoagulation at low doses than conventional alum coagulation when reaction was undertaken for the same conditions (pH 8.5, and initial boron concentration was 500 mg/L). Al electrocoagulation can achieve good boron removal performance (68.3%) at a dose of 2.1 (as molar ratio of Al:B, and for current density of 62.1 A/m2), while alum coagulation can only achieve the maximum boron removal of 56% at a dose of 2.4. Also, Al electrocoagulation can remove 15–20% more boron than alum coagulation for the same dose compared in the treatment of both model test wastes and industry effluent. The estimation of running costs shows that to achieve 75% boron removal from industry waste effluent, i.e. removing 150 g of boron from 1 m3 of effluent, electrocoagulation was 6.2 times cheaper than alum coagulation. The economic advantage of electrocoagulation in the treatment of boron-containing waste effluent is thus significant.

APA, Harvard, Vancouver, ISO, and other styles

21

Gunarif Taib, Wenny Surya Murtius, Risa Meutia Fiana, and Wahyunanto Agung Nugroho. "Systematic literature electrocoagulation for wastewater treatment: Mini-review." World Journal of Advanced Research and Reviews 18, no. 2 (May 30, 2023): 690–99. http://dx.doi.org/10.30574/wjarr.2023.18.2.0812.

Full text

Abstract:

Electrocoagulation is a method that can be used to remove pollutants and nutrients from liquid waste. This method has been found for a long time but has exclusively recently been developed for wastewater treatment after a lengthy process. Electrocoagulation can remove colloidal materials, i.e., suspended solids, metals, and other dissolved solids in wastewater. Several studies have shown that electrocoagulation has been successfully operated in various industrial wastewaters, i.e., bakery, chocolate, cork boiling, olive, biodiesel, Etc. This review uses the systematic review scale mini-review method. Literature was collected from various databases using Harzing's Publish or Perris Software and analyzed by Mendeley Software. The results indicate that the electrocoagulation method has received excellent attention for development, i.e., the effectiveness and energy that must be consumed, and that research is evolving to show the best performance of electrocoagulation.

APA, Harvard, Vancouver, ISO, and other styles

22

Diamantis, Theodore, Michael Kontos, Antonios Arvelakis, Spiridon Syroukis, Dimitris Koronarchis, Apostolos Papalois, Emmanuel Agapitos, Elias Bastounis, and Andreas C. Lazaris. "Comparison of Monopolar Electrocoagulation, Bipolar Electrocoagulation, Ultracision, and Ligasure." Surgery Today 36, no. 10 (September 25, 2006): 908–13. http://dx.doi.org/10.1007/s00595-006-3254-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Ramcharan, Terelle, and Ajay Bissessur. "Treatment of laundry wastewater by biological and electrocoagulation methods." Water Science and Technology 75, no. 1 (October 20, 2016): 84–93. http://dx.doi.org/10.2166/wst.2016.464.

Full text

Abstract:

The present study describes an improvement in the current electrocoagulation treatment process and focuses on a comparative study for the clean-up of laundry wastewater (LWW) after each wash and rinse cycle by biological and electrocoagulation treatment methods. For biological treatment, the wastewater was treated with a Bacillus strain of aerobic bacteria especially suited for the degradation of fats, lipids, protein, detergents and hydrocarbons. Treatment of the LWW by electrocoagulation involved the oxidation of aluminium metal upon the application of a controlled voltage which produces various aluminium hydroxy species capable of adsorbing pollutants from the wastewater. The efficiency of the clean-up of LWW using each method was assessed by determination of surfactant concentration, chemical oxygen demand and total dissolved solids. A rapid decrease in surfactant concentration was noted within 0.5 hour of electrocoagulation, whereas a notable decrease in the surfactant concentration was observed only after 12 hour of biological treatment. The rapid generation of aluminium hydroxy species in the electrocoagulation cell allowed adsorption of pollutants at a faster rate when compared to the aerobic degradation of the surfactant; hence a reduced period of time is required for treatment of LWW by electrocoagulation.

APA, Harvard, Vancouver, ISO, and other styles

24

Hasan, Md Anik, Md Abul Hashem, Md Navid Arman, and Md Abdul Momen. "Batch Electrocoagulation Process for Removal of Chromium from Tannery Wastewater." Journal of Engineering Science 12, no. 1 (April 21, 2021): 29–34. http://dx.doi.org/10.3329/jes.v12i1.53098.

Full text

Abstract:

This study was aimed to investigate the chromium removal from the tannery wastewater through electrocoagulation. The zinc and copper plates were used as electrodes for the electrocoagulation process. The effectiveness of the electrocoagulation for chromium removal efficiency was examined investigating various parameters: applied voltage, time, and current density. In batch experiment, 500 mL chromium-containing wastewater was used for electrocoagulation. Chromium content in the raw wastewater and after treatment at optimized conditions was 340.1 and 6.9 mg/L, respectively. The efficiency of chromium removal and reduction of biochemical oxygen demand (BOD) was at 98.0 and 64.6%, accordingly. Although total dissolved solids (TDS) was slightly increased. The increment of current density enhances forming zinc hydroxide which causes the damage of electrodes. Electrocoagulation is an effective technique to remove chromium from the wastewater especially from the tannery wastewater. Journal of Engineering Science 12(1), 2021, 29-34

APA, Harvard, Vancouver, ISO, and other styles

25

Aguilar-Ascón, Edwar, Armando Solari-Godiño, Miguel Cueva-Martínez, Walter Neyra-Ascón, and Miguel Albrecht-Ruíz. "Characterization of Sludge Resulting from Chemical Coagulation and Electrocoagulation of Pumping Water from Fishmeal Factories." Processes 11, no. 2 (February 13, 2023): 567. http://dx.doi.org/10.3390/pr11020567.

Full text

Abstract:

In the fishmeal industry, seawater is used to transport fish to the factories. Due to this, “pumping water” with high concentrations of organic matter is generated that is treated via chemical coagulation before letting it into the sea. The objective of this study is to characterize and compare the sludge obtained from conventional chemical coagulation and the sludge from the electrocoagulation process. A pilot electrocoagulation plant was built next to a chemical coagulation plant. The sludge obtained from both methodologies was analyzed for its proximal composition, its iron and aluminum content, and the fatty acid profile in its contained fat. Electrocoagulation was found to produce sludge with a higher concentration of lipids and ash, which indirectly confirmed that it removes more organic pollutants and salts than chemical coagulation. The contents of aluminum and iron in the sludge obtained by electrocoagulation were 4.2% and 0.025%, respectively, while those in the sludge obtained from chemical coagulation were 0.01% and 4.8%, respectively. Aluminum comes from the sacrificial electrode of the electrocoagulation tank, while iron comes from the salts used in chemical coagulation. The sum of w-3 fatty acid values (EPA + DHA) was 12.5% and 18.8% for sludges from the electrocoagulation and chemical coagulation processes, respectively, so we can assume that electrocoagulation is a more oxidizing process than chemical coagulation. Due to their high organic load, both sludges must be assessed as an alternative feed ingredient.

APA, Harvard, Vancouver, ISO, and other styles

26

Yu, M. J., J. S. Koo, G. N. Myung, Y. K. Cho, and Y. M. Cho. "Evaluation of bipolar electrocoagulation applied to biofiltration for phosphorus removal." Water Science and Technology 51, no. 10 (May 1, 2005): 231–39. http://dx.doi.org/10.2166/wst.2005.0371.

Full text

Abstract:

To reduce the residual organic matter and phosphorus contained in secondary effluent, a biofiltration system combined with electrocoagulation using bipolar iron elegctrodes was evaluated as a supplementary treatment to existing small-community sewage treatment. Based on the results of batch tests, bipolar electrocoagulation (BEC) was found to be more effective on phosphorus removal than monopolar electrocoagulation (MEC) but energy consumption was less in monopolar electrocoagulation. Optimum conditions of BEC to treat the secondary effluent were current density 15 A/m2, electrode spacing 1 cm and pH < 8. The removals of CODCr and phosphorus by biofiltration system without BEC were 69.1% and 9.6%, respectively. However, biofiltration system combined with BEC showed 76.6–83.7% and 70.7–93.0% removal for CODCr and phosphorus respectively. Extraordinary increase in phosphorus could be achieved by introducing electrocoagulation to biofiltration, and BEC/biofiltration system was evaluated to be applicable to existing small-community sewage treatment plants as a supplementary process.

APA, Harvard, Vancouver, ISO, and other styles

27

Maleiva, Lalak Tarbiyatun Nasyin, Putranty Widha Nugraheni, Finar Ramadhan, Leonardus Sandy Ade Putra, and Eka Kusumawardhani. "Treatment of Dug Well Water in Kubu Raya, West Kalimantan, with Electrocoagulation." IOP Conference Series: Earth and Environmental Science 1228, no. 1 (August 1, 2023): 012013. http://dx.doi.org/10.1088/1755-1315/1228/1/012013.

Full text

Abstract:

Abstract Dug well water is one of the clean water sources used in Kubu Raya Regency. However, through the initial testing, the physical and chemical qualities of the water were inadequate to meet the hygiene and sanitation demands of daily living following Regulation No. 32 of the Minister of Health of Indonesia 2017. Consequently, the objective of this study was to examine the treatment of dug well water by electrocoagulation and electrocoagulation-coagulation employing Poly Aluminium Chloride (PAC) as a coagulant with varying periods (45, 60, 75, and 90 minutes). Increasing the processing time in the electrocoagulation treatment enhanced the pH and TDS values while lowering the color, turbidity, Fe, and Mn metals. The pH value increased for the electrocoagulation-coagulation treatment. Conversely, the concentrations of color, turbidity, Fe metal, and Mn metal dropped, however, the TDS value increased, exceeding the threshold. Ultimately, the electrocoagulation treatment was more effective at reducing contaminants, as measured by advances in efficiency for pH, turbidity, color, Fe, and Mn.

APA, Harvard, Vancouver, ISO, and other styles

28

Miratsi, Lizia, Yulinda Yulinda, Junaidi Junaidi, and Widodo Budi Kurniawan. "SINTESIS LOGAM BESI (Fe) BERBASIS AIR KOLONG MENGGUNAKAN METODE ELEKTROKOAGULASI." JOURNAL ONLINE OF PHYSICS 9, no. 2 (April 25, 2024): 1–5. http://dx.doi.org/10.22437/jop.v9i2.29203.

Full text

Abstract:

After a land is excavated for tin mining purposes, a hole called a kolong will be formed. Kolong has the potential to be a new water resource, but the condition of kolong water still contains dangerous metals, one of which is iron (Fe) and kolong water does not meet the standard requirements for clean water quality. Therefore, this research aims to reduce concentration of iron (Fe) and synthesizing Fe metal contained in kolong using the electrocoagulation method. This method is environmentally friendly and effective for application in kolong areas, besides that it is easy to separate pollutants because coagulated sediments called floc float on the surface. The electrocoagulation method is applied using an aluminum plate with variations in electrocoagulation time. Based on the AAS test results, it shows that there is a decrease in Fe levels in kolong water after electrocoagulation. The results of the XRF and Thus, using the electrocoagulation method can reduce levels of iron metal (Fe) and synthesize Fe metal in kolong water.

APA, Harvard, Vancouver, ISO, and other styles

29

Han, M., J. Song, and A. Kwon. "Preliminary investigation of electrocoagulation as a substitute for chemical coagulation." Water Supply 2, no. 5-6 (December 1, 2002): 73–76. http://dx.doi.org/10.2166/ws.2002.0152.

Full text

Abstract:

Recently electrocoagulation has been considered as one of the promising coagulation processes and was increasingly used as a substitute for chemical coagulation in many water treatment fields. However, there have not been many fundamental studies performed on it. In this research, a preliminary investigation was carried out to verify the effectiveness of the electrocoagulation compared with conventional chemical coagulation through a set of batch experiments. Turbidity removal efficiencies, using various aluminium dosages and at different water pH values, were investigated. In addition, the zeta potential was studied to develop understanding of particle characteristic after applying both electrocoagulation and chemical coagulation. It can be concluded from the results that electrocoagulation is more efficient than chemical coagulation in turbidity removal.

APA, Harvard, Vancouver, ISO, and other styles

30

Silva, Douglas Mark Lopes da, Maria Tereza W. D. Carneiro, and Josimar Ribeiro. "Boron Removal from Mining and Synthetic Effluents by Electrocoagulation Using Aluminum Electrodes." Scientific World Journal 2019 (May 9, 2019): 1–7. http://dx.doi.org/10.1155/2019/3746964.

Full text

Abstract:

The efficiency of the electrocoagulation method to remove boron from synthetic and mining effluents was investigated in this study. Different parameters were tested using boric acid solution and effluent collected from a mining company located in the city of Vitória-ES. The results showed a percentage of boron removal of over 60% for the synthetic and mining effluents, using aluminum electrodes, pH 7.5, current density of 14.82 mA cm−2, and supporting electrolyte of 0.200 mol L−1. The electrocoagulation and chemical coagulation methods were also compared, in which the percentage obtained by electrocoagulation was 56.30% higher for the mining effluent. Thus, electrocoagulation was more efficient in boron removal, especially when appropriate parameters are applied.

APA, Harvard, Vancouver, ISO, and other styles

31

Castañeda-Díaz, J., T. Pavón-Silva, E. Gutiérrez-Segura, and A. Colín-Cruz. "Electrocoagulation-Adsorption to Remove Anionic and Cationic Dyes from Aqueous Solution by PV-Energy." Journal of Chemistry 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/5184590.

Full text

Abstract:

The cationic dye malachite green (MG) and the anionic dye Remazol yellow (RY) were removed from aqueous solutions using electrocoagulation-adsorption processes. Batch and continuous electrocoagulation procedures were performed and compared. Carbonaceous materials obtained from industrial sewage sludge and commercial activated carbons were used to adsorb dyes from aqueous solutions in column systems with a 96–98% removal efficiency. The continuous electrocoagulation-adsorption system was more efficient for removing dyes than electrocoagulation alone. The thermodynamic parameters suggested the feasibility of the process and indicated that the adsorption was spontaneous and endothermic (ΔS=0.037 and −0.009 for MG and RY, resp.). The ΔG value further indicated that the adsorption process was spontaneous (−6.31 and −10.48; T=303 K). The kinetic electrocoagulation results and fixed-bed adsorption results were adequately described using a first-order model and a Bohart-Adams model, respectively. The adsorption capacities of the batch and column studies differed for each dye, and both adsorbent materials showed a high affinity for the cationic dye. Thus, the results presented in this work indicate that a continuous electrocoagulation-adsorption system can effectively remove this type of pollutant from water. The morphology and elements present in the sludge and adsorbents before and after dye adsorption were characterized using SEM-EDS and FT-IR.

APA, Harvard, Vancouver, ISO, and other styles

32

Abdulla, Firdos M., and N. H. Abdurahman. "Demulsification of crude oil emulsion via electrocoagulation method." Journal of Chemical Engineering and Industrial Biotechnology 3, no. 1 (March 1, 2018): 97–105. http://dx.doi.org/10.15282/jceib.v3i1.3878.

Full text

Abstract:

During oil production and processing emulsions were formed and seriously cause problem, both in terms of chemicals used and production losses. The traditional methods of breaking crude oil emulsions are disadvantageous from both economic and environmental perspectives. In this paper, the potentials of electrocoagulation technology in demulsification of crude oil emulsion were investigated. The crude oil obtained from Petronas Ponapean Melaka, Malaysia. For stability performance test, Span 80 was used as emulsifier, while for chemical demulsification performance test,Hexylamine was used. The electrocoagulation method was used for demulsification of W/O emulsion. For electrocoagulation demulsification, three factors namely; voltages 15-50 V, current density 1.04-3.94 mAcm-2, and concentration of NaCl 0.5-2.5 g/L. The electrocoagulation demulsification showed that the best water separation efficiency was achieved at voltage 50 V, current density 3.94 mAcm-2, and NaCl concentration 2.5 g/L, whereas the separation efficiency reached at 98%. Results have shown the potential of electrocoagulation method in separation of water-in-crude oil emulsions, W/O.

APA, Harvard, Vancouver, ISO, and other styles

33

Nwabanne, Joseph Tagbo, Ozioma Onyinye Oguegbu, and Chinedu Matthew Agu. "Removal of Solids from Palm Oil Mill Effluent and Paint Wastewater Using Electrocoagulation Technique." International Journal of Electrochemistry 2018 (November 1, 2018): 1–9. http://dx.doi.org/10.1155/2018/4349639.

Full text

Abstract:

Electrocoagulation has been employed as a treatment technique for treating various wastewaters. This study focuses on the performance of electrocoagulation process for the treatment of Palm Oil Mill Effluent (POME) and Paint Wastewater (PW) using iron electrodes. POME obtained from local palm oil producers and PW from a paint industry, both in Enugu state of Nigeria, were treated by electrocoagulation using two iron electrodes. Effects of current density, electrocoagulation time, pH, and temperature were studied. Results revealed that this process could reduce the concentration of Total Suspended and Dissolved Solids (TSDP), in both POME and PW. The highest removal efficiencies of 65% and 76% were obtained for POME and PW, respectively, at 3 Amps, 60min, pH of 10, and 50°C for POME and 3 Amps, 60min, pH of 6, and 60°C for PW. Of the two kinetic models studied, second-order kinetic model fitted best to the obtained experimental kinetic data. From this study, it can be concluded that electrocoagulation is effective in the treatment of POME and PW.

APA, Harvard, Vancouver, ISO, and other styles

34

Jumpatong, Kanlaya, Weerachai Phutdhawong, and Duang Buddhasukh. "Dechlorophyllation by Electrocoagulation." Molecules 11, no. 2 (March 17, 2006): 156–62. http://dx.doi.org/10.3390/11020156.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Matek, W., and P. Frühmorgen. "Electrocoagulation - Animal Experiments." Endoscopy 18, S 2 (May 1986): 58–60. http://dx.doi.org/10.1055/s-2007-1018430.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Sampliner, Richard E. "Barrett's esophagus: electrocoagulation." Gastrointestinal Endoscopy 49, no. 3 (March 1999): S17—S19. http://dx.doi.org/10.1016/s0016-5107(99)70519-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Chanen, William. "8 Electrocoagulation diathermy." Baillière's Clinical Obstetrics and Gynaecology 9, no. 1 (March 1995): 157–72. http://dx.doi.org/10.1016/s0950-3552(05)80364-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Rangel, Rodolfo Maia, Roberto José de Carvalho, and Maurício Leonardo Torem. "Organic matter removal from oil-water emulsions by electrocoagulation: 2 - mathematical model." Rem: Revista Escola de Minas 67, no. 1 (March 2014): 67–72. http://dx.doi.org/10.1590/s0370-44672014000100010.

Full text

Abstract:

A mathematical model of the organic matter (chemical oxygen demand - COD) removal from synthetic oil-water emulsions by the electrocoagulation process was developed to evaluate the COD abatement. The model comprises the three fundaments of electrocoagulation: electrochemistry, coagulation and flotation. By comparing the experimental and calculated values of COD, it was found that the model was able to adequately predict the concentrations of organic matter (COD) present in the emulsions and satisfactorily describe the electrocoagulation process.

APA, Harvard, Vancouver, ISO, and other styles

39

Dewanti, Beauty Suestining Diyah, Tafana Firdausi Prastiwi, and Alexander Tunggul Sutan Haji. "PENGOLAHAN LIMBAH CAIR BATIK MENGGUNAKAN KOMBINASI METODE NETRALISASI DAN ELEKTROKOAGULASI." JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI 7, no. 3 (September 3, 2019): 358. http://dx.doi.org/10.24843/jrma.2019.v07.i03.p03.

Full text

Abstract:

In the process of production, batik industry often used chemicals such as dye used in dyeing process. Waste water of batik industry containing high concentration of BOD, COD, suspended solid, and color relatively high. One of alternative processing for liquid waste batik is using the neutralization and electrocoagulation method. The purposes of this research were to find the influence of processing with the neutralization and electrocoagulation methode, to find the removal efficiency and to know optimal voltage in reducing the concentration of total chromium, COD, and TSS on liquid waste batik. At the neutralization methode using concentrated HCl. Electrode used in electrocoagulation methode was aluminium as plate electrodes. The observation parameter were total chromium, COD, and TSS at 0, 30, 60, and 90 minutes. The process of neutralization and electrocoagulation of liquid waste batik most effective was reached on voltage 12 volts at 90 minutes that decrease total chromium concentration from 4,908 mg/L to 0,005 mg/L, COD concentration from 1890 mg/L to 68,55 mg/L, and TSS concentration from 296,7 mg/L to 41 mg/L. the voltage as able to produce electrical power equal to 0,036 KWH. A method of electrocoagulation most efficient to remove 99,90%, 96,37%, and 86,18% of total chromium, COD, and TSS respectively. Keywords : Total Chromium, COD, TSS, Liquid Waste Batik, Electrocoagulation

APA, Harvard, Vancouver, ISO, and other styles

40

Astuti, Dwi. "Effectiveness of aluminum electrode in reducing bod, cod, ammoniac, and chromium in leather tannering waste with the electrocoagulation process." Science Midwifery 10, no. 5 (December 26, 2022): 4378–82. http://dx.doi.org/10.35335/midwifery.v10i5.1033.

Full text

Abstract:

Tanning industry skin use ingredient chemical and water in amount which so much This process produces liquid waste containing various organic substances from ingredient raw and substance chemical from additional materials used During process tanning. This study aims to determine the efficiency of the electrocoagulation method in reducing the parameters BOD, COD, ammonia, and chromium. A sample of 100 liters of leather tanning waste water used is put into a grease trap and flowed into an electrocoagulation bath in which electrodes (3 cathodes and 3 anodes) have been arranged. The electrocoagulation process lasted for 60 minutes. Parameters of wastewater quality examined include BOD (Biological Oxygen Demand), COD (Chemical Oxygen Demand), ammonia, and total chromium. The method for measuring the quality parameters of tannery wastewater uses the appropriate Indonesian National Standards. The results of the measurements will be analyzed descriptively by comparing the results with the standards of the Minister of Environment of the Republic of Indonesia Number 5 of 2014 concerning Quality Standards for Tannery Wastewater. After the electrocoagulation process is complete, then the effectiveness is calculated in percent (%). The effectiveness of the electrocoagulation process in reducing the levels of parameters from the highest percentage was total chromium (62.01%); COD (58.29%); BOD (52.52%); and ammonia (42.79%). The electrocoagulation process is quite effective in reducing the levels of tannery wastewater quality parameters.

APA, Harvard, Vancouver, ISO, and other styles

41

Alam, Pocut Nurul, Izzan Nur Aslam, Ilham Ridho Abdillah, Raihan Nanda Pratama, and Komala Pontas. "Improving Acid Mine Drainage Treatment through Electrocoagulation: Effect of Time, Electrode Distance, and Electrode Types." E3S Web of Conferences 543 (2024): 01004. http://dx.doi.org/10.1051/e3sconf/202454301004.

Full text

Abstract:

This study explores the feasibility of employing electrocoagulation technology to manage Acid Mine Drainage (AMD) wastewater, focusing on reducing heavy metal concentrations, particularly iron (Fe) and manganese (Mn). Samples of AMD liquid waste from PT Lhoong Setia Mining in Aceh Province, Indonesia, underwent electrocoagulation using Al-Zn and Al-Fe electrodes with Direct Current (DC). The investigation considered various parameters, including contact time (ranging from 0 to 45 minutes), electrode distance (2, 2.5, and 3 cm), and electrode type (Al-Fe and Al-Zn). The study revealed that prolonged electrocoagulation increased the reduction of Fe and Mn metals due to enhanced Al(OH)3 formation. While Al-Zn electrodes exhibited rapid coagulant formation initially, Al-Fe electrodes sustained effectiveness throughout the process. Optimal reduction of Fe and Mn concentrations occurred at different electrode distances, emphasizing the critical role of spacing in electrocoagulation efficiency. Furthermore, the electrocoagulation process successfully elevated pH levels within acceptable limits and effectively reduced Total Suspended Solids (TSS) in AMD waste, aligning with regulatory standards. This research underscores the potential for electrocoagulation as a viable technology for mitigating the environmental impact of AMD and addresses knowledge gaps related to efficient pollutant removal in mining wastewater treatment. Future studies should explore parameter optimization and consider transitioning to continuous operation for increased effectiveness, particularly in remote mining locations.

APA, Harvard, Vancouver, ISO, and other styles

42

Emamjomeh, Mohammad M., and Muttucumaru Sivakumar. "Review of pollutants removed by electrocoagulation and electrocoagulation/flotation processes." Journal of Environmental Management 90, no. 5 (April 2009): 1663–79. http://dx.doi.org/10.1016/j.jenvman.2008.12.011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Smoczyński, Lech, Kamilla Teresa Muńska, Bogusław Pierożyński, and Marta Kosobucka. "Electrocoagulation of model wastewater using aluminum electrodes." Polish Journal of Chemical Technology 14, no. 3 (October 1, 2012): 66–70. http://dx.doi.org/10.2478/v10026-012-0086-1.

Full text

Abstract:

Electrocoagulation makes an alternative method to chemical coagulation. This paper presents the results obtained during the electrocoagulation of the model wastewater using aluminum electrodes. The wastewater was treated by means of chronopotentiometric electrocoagulation process in a static system, at the constant current I = 0.3 A; therefore higher doses of electrocoagulant required longer electrocoagulation time. Changes in zeta potential, pH, turbidity, chemical oxygen demand (COD), suspended solids and total phosphorus concentrations in the treated wastewater were determined. A new method for determining the optimal dosage of the aluminum electrocoagulant was proposed through application of the third degree polynomial function rather than the parabolic equation. An increase in the electrocoagulant dose raised the share of sweep fl occulation in the studied treatment process, resulting in the effective removal over 90% of phosphorus compounds from the system.

APA, Harvard, Vancouver, ISO, and other styles

44

Mengistu, Lelisa Regea, and Chali Dereje Kitila. "Removal of major nutrients by sono-direct and sono-alternate current electrocoagulation process from domestic wastewater." Environmental Health Engineering and Management 10, no. 4 (December 7, 2023): 353–60. http://dx.doi.org/10.34172/ehem.2023.39.

Full text

Abstract:

Background: Electrocoagulation is becoming a promising eco-friendly wastewater treatment technique. It is a low-cost wastewater treatment method suitably applied for various wastewater effluent characteristics. Nevertheless, there are different kinds of electrocoagulation; comparison among them in terms of nutrient removal is investigated in the present research. This study analyzed nitrate (NO3 - ) and phosphate (PO4 3-) removal potential of the sono-alternative and direct-current electrocoagulation process. Methods: Batch reactor and sono-direct current (SDC)/sono-alternative current (SAC) electrocoagulation cell were employed to investigate NO3 - and PO4 3- removal efficiency from domestic effluents. The data gathered from laboratory experiments were analyzed using response surface methodology (RSM). ANOVA was used to examine the interaction effects of diverse parameters in terms of NO3 _ and PO4 3- removal from domestic wastewater effluents. Results: At extreme experimental conditions, the percentage of NO3 - and PO4 3- removal attained with sono-direct current electrocoagulation (SDCE) and sono-alternative current electrocoagulation (SACE) were 96.5%, 96.2% and 96.8%, 96.5, respectively. The SACE was more successful in eliminating NO3 - and PO4 3- than the SDCE process. The appearance of resistant oxide coating on the cathode and the appearance of corrosion on the anode due to oxidation processes in the case of SDCE were identified as principal factors highly affecting NO3 - and PO4 3- removal efficiency. Conclusion: With optimum process efficiency, experimental findings show that the SACE process is more capable of NO3 - and PO4 3- removal than the SDCE process.

APA, Harvard, Vancouver, ISO, and other styles

45

Mohammed, Thamer Jasim, and Hadeel Atiya Al-Zuheri. "Hybrid Process of Electrochemistry with Magnetite Nanoparticles for Treatment of Turbid Water." Association of Arab Universities Journal of Engineering Sciences 26, no. 3 (August 31, 2019): 1–6. http://dx.doi.org/10.33261/jaaru.2019.26.3.001.

Full text

Abstract:

Magnetic nanoparticles are now being investigated widely in field of water treatment. The aim of this study was to evaluate the feasibility of electrocoagulation process combined with addition of magnetite nanoparticles as a turbidity removal process. Bentonite was used as source of turbidity for the synthetic turbid water. Experiments were conducted in a bench scales electrocoagulation reactor where voltage was applied across a perforated plate of aluminum as anode, and iron mesh as cathode. Commercial grade of magnetite (Fe3O4) with an average nanoparticle size of 50 nm was used. The effect of some factors such as initial pH of the solution (5-9), current density (5-25 mA/cm2), and magnetite dosage (0.4-2.5 gm) on the efficiency of the process were studied. The residual turbidity obtained by using electrocoagulation process alone was (7.47 NTU) from initial turbidity of (200 NU) at constant conditions of pH 6, current density 15 mA/cm2 and electrolysis time 20 min. While under these same conditions the combined electrocoagulation + magnetite process with the added (1.4 gm) of magnetite and under the same operating conditions the residual turbidity was (4.34 NTU), which indicate that the magnetite nanoparticles enhanced the electrocoagulation process.

APA, Harvard, Vancouver, ISO, and other styles

46

Abdulla, Firdos M., and Nour Hamid Abdurahman. "DESTABILIZATION OF CRUDE OIL EMULSION VIA ELECTROCOAGULATION METHOD." Journal of Chemical Engineering and Industrial Biotechnology 4, no. 1 (March 1, 2018): 44–52. http://dx.doi.org/10.15282/jceib.v4i1.3882.

Full text

Abstract:

Formation of emulsions during oil production and processing is a costly problem, both in terms of chemicals used and production losses. Conventional ways of breaking crude oil emulsion are disadvantageous from both economic and environmental perspectives. In this paper, the potentials of electrocoagulation technology in destabilization of crude oil emulsion were investigated. The crude oil was obtained from Petronas Refinery Melaka, Malaysia. For stability performance test, Span 80 was used as emulsifier, while for chemical destabilization performance test, Hexylamine was used. The electrocoagulation method was used for destabilization of W/O emulsion. For electrocoagulation destabilization, three factors namely; voltages 15-50 V, current density 1.04-3.94 mAcm- 2, and NaCl concentration 0.5-2.5 g/L. The electrocoagulation destabilization showed that the best water separation efficiency was achieved at voltage 50 V, current density 3.94 mAcm-2, and NaCl concentration 2.5 g/L, whereas the separation efficiency reached at 98%. In addition, electrocoagulation of W/O emulsion separation is advantageous as it was simple to be operated, low cost and more identical, and then successfully applied on destabilization of W/O crude oil emulsions on the industry.

APA, Harvard, Vancouver, ISO, and other styles

47

Setiawan, Adhi, Tarikh Azis Ramadani, and Rizka Lutfita Hanastasia. "Treatment of Pb(II) Metal in Wastewater Using Combination Method of Electrocoagulation − Activated Carbon Adsorption." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 17, no. 2 (July 30, 2020): 96–103. http://dx.doi.org/10.14710/presipitasi.v17i2.96-103.

Full text

Abstract:

Metal Pb(II) is one of the pollutants that causes water pollution and impacts ecosystem damage. Pb(II) metal waste is toxic and biomagnification, so it harms human health. The combination of electrocoagulation and adsorption processes is an efficient and effective alternative in removing Pb(II) metal in wastewater. In this study, the wastewater treatment process is carried out in batch using electrocoagulation with aluminum electrodes and followed by activated carbon adsorption. This research aimed to analyze the effect of electrical voltage in electrocoagulation, adsorption time, and adsorbent dose on reducing Pb(II) concentration. Electrocoagulation and adsorption processes were used variations of electrical voltage (10, 20, 30 V), adsorption times (15, 30, 45 minutes), and adsorbent doses (2,5, 3,3, 4,1, 5 g/L). The research showed that the combination of electrocoagulation and adsorption could significantly reduce Pb(II) concentration in wastewater. Increased electrical voltage, adsorption time, and adsorbent dose lead to increased Pb(II). The maximum removal efficiency of Pb(II) metal was obtained under voltage of 30 V, 45 minutes adsorption time, and 5 g/L adsorbent dose. This condition resulted in removal efficiency Pb(II) of 96,01%.

APA, Harvard, Vancouver, ISO, and other styles

48

Naje, Ahmed Samir, Mohammed A. Ajeel, Isam Mohamad Ali, Hussein A. M. Al-Zubaidi, and Peter Adeniyi Alaba. "Raw landfill leachate treatment using an electrocoagulation process with a novel rotating electrode reactor." Water Science and Technology 80, no. 3 (August 1, 2019): 458–65. http://dx.doi.org/10.2166/wst.2019.289.

Full text

Abstract:

Abstract In this work, landfill leachate treatment by electrocoagulation process with a novel rotating anode reactor was studied. The influence of rotating anode speed on the removal efficiency of chemical oxygen demand (COD), total dissolved solids (TDS), and total suspended solids (TSS) of raw landfill leachate was investigated. The influence of operating parameters like leachate pH, leachate temperature, current, and inter-distance between the cathode rings and anode impellers on the electrocoagulation performance were also investigated. The results revealed the optimum rotating speed is 150 rpm and increasing the rotating speed above this value led to reducing process performance. The leachate electrocoagulation treatment process favors the neutral medium and the treatment performance increases with increasing current intensity. Furthermore, the electrocoagulation treatment performance improves with increasing leachate temperature. However, the performance reduces with increasing inter-electrode distance.

APA, Harvard, Vancouver, ISO, and other styles

49

Kabdaşlı, I., I. Arslan-Alaton, B. Vardar, and O. Tünay. "Comparison of electrocoagulation, coagulation and the Fenton process for the treatment of reactive dyebath effluent." Water Science and Technology 55, no. 10 (May 1, 2007): 125–34. http://dx.doi.org/10.2166/wst.2007.315.

Full text

Abstract:

In this paper, experimental studies were performed on a simulated reactive dyebath effluent to compare coagulation-flocculation and Fenton's oxidation with electrocoagulation using stainless steel (SS 304) and aluminium electrodes in terms of colour and COD removals as well as AOX formation potential and improvement of biological treatability. Results have indicated that FeCl3 and alum coagulation had little effect on colour removal whereas comparable colour removal efficiencies with those of electrocoagulation with steel electrodes and Fenton's oxidation were attained by FeSO4 coagulation. Almost complete colour removals accompanied with 77% COD abatement were obtained by both electrocoagulation with steel electrodes and Fenton's oxidation under optimised reaction conditions. Although electrocoagulation with aluminium electrodes yielded very limited colour removal and produced a high amount of sludge upon extended reaction time, this application brought about a marked improvement in biodegradability.

APA, Harvard, Vancouver, ISO, and other styles

50

Zhang, Zhiyu, Lifeng Shi, and Hao Wang. "Research and Analysis of Typical Pollutants Treated by Electroflocculation Technology in Water." Frontiers in Science and Engineering 3, no. 6 (June 20, 2023): 36–39. http://dx.doi.org/10.54691/fse.v3i6.5119.

Full text

Abstract:

Electrocoagulation is an electrochemical technology that realizes the removal of pollutants by generating flocculants in situ, which has the advantages of simple operation, easy control, small sludge generation and good treatment effect, and has received widespread attention in the field of drinking water and wastewater treatment. Combined with the mechanism of electrocoagulation reaction, this paper discusses the research progress of electroflocculation technology from the aspects of removing arsenic, phosphate and fluoride ions, and analyzes its combination process, which lays a foundation for the engineering application of electrocoagulation technology in the field of water treatment.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Electrocoagulation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles