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Добірка наукової літератури з теми "Sewage sludge anaerobically digested"

Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Sewage sludge anaerobically digested"

1

Cheng, H. F., S. Y. Chen, and J. G. Lin. "Hazardous organic matters in municipal sewage sludge in Taiwan." Water Science and Technology 44, no. 10 (November 1, 2001): 65–70. http://dx.doi.org/10.2166/wst.2001.0582.

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Application of municipal sewage sludge to agricultural land has attracted significant attention in recent years because it conserves abundant nutrients and hydrocarbons that can be used as a soil amendment. The presence of hazardous organic matters (HOMs) in sewage sludge limits the feasibility of reuse of sewage sludge. The purpose of this study was to investigate the types and the concentrations of HOMs in municipal sewage sludge in Taiwan. An efficient SFE/GC/MS method was used to determine HOMs in sludge samples. The results indicated that di-(2-ethylhexyl) phthalate (DEHP) was persistently found in both aerobically and anaerobically digested sludges. 4-nonylphenol (4-NP) was only found in anaerobically digested sludges. Both DEHP and 4-NP have been characterized as endocrine disrupting chemicals (EDCs) or environmental endorine disruptors (EEDs). It suggested that sludges containing high levels of DEHP and 4-NP need further treatment and reduction of possible impacts on the environment before their reuse as soil fertilizers.
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Kitada, K., A. Ito, K. Yamada, J. Aizawa, and T. Umita. "Biological leaching of heavy metals from anaerobically digested sewage sludge using indigenous sulfur-oxidizing bacteria and sulfur waste in a closed system." Water Science and Technology 43, no. 2 (January 1, 2001): 59–65. http://dx.doi.org/10.2166/wst.2001.0073.

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The utilization of indigenous sulfur-oxidizing bacteria and sulfur waste was investigated in order to remove heavy metals from anaerobically digested sewage sludge economically. Indigenous sulfur-oxidizing bacteria existing in anaerobically digested sewage sludge were activated by adding elemental sulfur to the sludge and then the bacteria were isolated. It was found that indigenous sulfur-oxidizing bacteria could utilize sulfur waste generated by desulfurization of digestion gas as a substrate. Then, biological leaching of heavy metals from anaerobically digested sewage sludge was carried out using indigenous sulfur-oxidizing bacteria and sulfur waste. By adding sulfur waste to sewage sludge, sulfuric acid was produced by the bacteria and the sludge pH decreased. Heavy metals in sewage sludge were effectively removed owing to the decrease of pH. The optimum amount of sulfur waste added to decrease the pH sufficiently was 5g/L when the sludge concentration was 2%. It was presented that the biological leaching of heavy metals from sewage sludge can be carried out in a closed system, where all required materials are obtained in a sewage treatment plant.
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Monea, Marlena Cristina, Carsten Meyer, Heidrun Steinmetz, Harald Schönberger, and Asya Drenkova-Tuhtan. "Phosphorus recovery from sewage sludge – phosphorus leaching behavior from aluminum-containing tertiary and anaerobically digested sludge." Water Science and Technology 82, no. 8 (August 31, 2020): 1509–22. http://dx.doi.org/10.2166/wst.2020.414.

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Abstract Systematic investigations of the acidic dissolution of phosphorus (P), aluminum (Al), iron (Fe), and calcium (Ca) from Al-containing tertiary sludge were carried out in this work. The results were compared with the dissolution behavior of Al-containing anaerobically digested sludge to evaluate the P recovery potential in the form of struvite from tertiary sludge versus anaerobically digested sludge. Additional investigations of synthetically produced Al sludge served as a comparison for the dissolution behavior of P and Al without the influence of other contaminants (metals, biomass). In addition, the acid consumption was analyzed as a function of the target pH during the dissolution. The dissolution efficiency of ortho-phosphate in tertiary and anaerobically digested sludge after acid treatment at pH 2 was ∼90%. The dissolution efficiency of Al and Ca in tertiary sludge was also ∼90% at pH 2, while the release efficiency of Al and Ca in anaerobically digested sludge was lower, ∼70% at pH 2. In tertiary sludge, about 75% of Fe was found dissolved at pH 2, whereas in anaerobically digested sludge this value was higher, ∼90%. Based on the experimental data, it can be concluded that significant dissolution of phosphorus from Al-containing tertiary sludge can take place at pH < 3. The highest sulfuric acid consumption for P dissolution was observed in the case of tertiary sludge at pH 2.
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Chu, C. W., C. S. Poon, and R. Y. H. Cheung. "Characterization of raw sludge, chemically modified sludge and anaerobically digested sludge in Hong Kong." Water Science and Technology 38, no. 2 (July 1, 1998): 25–32. http://dx.doi.org/10.2166/wst.1998.0095.

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Chemically Enhanced Primary Treatment (CEPT) or Chemically Assisted Primary Sedimentation (CAPS) is being employed at the new sewage work on Stonecutters Island as part of the Strategic Sewage Disposal Scheme (SSDS) in Hong Kong. CAPS involves the use of chemical coagulants (such as lime or ferric chloride) to induce coagulation or flocculation and let these finely-divided particles form large aggregates (floc) so that they can settle out within a reasonable period of time. In this study, five sludge samples collected from different sewage treatment plants in Hong Kong were physically and chemically characterized. They were chemically modified sludge from Stonecutters Island (CAPS) raw sludge from Tai Po and Yuen Long Sewage Treatment Plant (STP) (rTP & rYL) and anaerobically digested sludge from Tai Po and Yuen Long STP (dTP & dYL). It was found that CAPS sludge was better than other 4 sludge samples in terms of settleability and dewaterability. CAPS sludge contained significant higher amounts (p<0.01) of extractable compounds than other sludges (except NO3− for dTP, NH4+ and PO43− for dYL). The concentration of total N and P in CAPS sludge were significantly higher (p<0.01) than other sludges (except dYL). The concentrations of total Cu, Pb, Ni, Cd, Cr and K in the CAPS sludge were also significantly higher (p<0.01) than other sludge samples. Most of the metals (Cr, Pb, Cr and Zn) in CAPS sludge were associated with the organically-bounded phase. It is concluded that there are significant differences in both physical and chemical properties between the chemically modified sludge and biological treated sludges.
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Parravicini, V., K. Svardal, R. Hornek, and H. Kroiss. "Aeration of anaerobically digested sewage sludge for COD and nitrogen removal: optimization at large-scale." Water Science and Technology 57, no. 2 (January 1, 2008): 257–64. http://dx.doi.org/10.2166/wst.2008.020.

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The paper will report about the experiences at an Austrian large wastewater treatment plant of 720,000 population equivalents, where anaerobically digested sewage sludge is further stabilised under aerobic conditions. Enhanced stabilisation of the anaerobically digested sludge was required at the plant in order to get a permit for landfill disposal of the dewatered stabilized sludge. By implementing a post-aeration treatment (SRT ∼ 6d; 36 °C) after anaerobic digestion the organic content of the anaerobically well digested sludge can be decreased by 16%. Investigations on site showed that during digested sludge post-aeration anoxic phases for denitrification are needed to provide stable process conditions. In this way the pH value can be kept in a more favourable range for micro-organisms and concrete structures. Additionally, inhibition of the biological process due to nitrite accumulation can be avoided. By optimising the aeration/pause ratio ∼ 45% of total nitrogen in digested sludge can be removed. This significantly improves nitrogen removal efficiency at the wastewater treatment plant. NH4-removal occurs mainly through nitritation and denitritation with an efficiency of 98%. The costs/benefit analysis shows that post-aeration of digested sludge results in an increase of total annual costs for wastewater treatment of only 0.84%, corresponding to 0.19 Euro/pe/a. Result of molecular biological analyses (DGGE) indicate that all four ammonium-oxidizing bacteria species present in activated sludge can survive anaerobic digestion, but only two of them can adapt in the digested sludge post-aeration tanks. Additionally, in the post-aerated digested sludge a further ammonium-oxidizing bacteria species was identified.
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Wong, J. W. C., and X. Y. Gu. "Enhanced heavy metal bioleaching efficiencies from anaerobically digested sewage sludge with coinoculation of Acidithiobacillus ferrooxidans ANYL-1 and Blastoschizomyces capitatus Y5." Water Science and Technology 50, no. 9 (November 1, 2004): 83–89. http://dx.doi.org/10.2166/wst.2004.0541.

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Prolonged bioleaching period was required to remove heavy metals from anaerobically digested sewage sludge in the presence of low molecular weight organic acids. The purpose of the present study was therefore to enhance metal solubilization efficiencies through introducing organic acid-degrading microorganisms into this artificial bioleaching system. An acetic and propionic acid-degrading yeast Blastoschizomyces capitatus Y5 was successfully isolated from a local Yuen Long sewage sludge and it could achieve optimum growth in synthetic liquid media containing 2,000 mg l-1 acetic acid or 1,000 mg l-1 propionic acid. When it was inoculated simultaneously with Acidithiobacillus ferrooxidans ANYL-1 into anaerobically digested sewage sludge, which contained 648 mg l-1 acetic acid and 731 mg l-1 propionic acid, both acids were completely decomposed within 24 hours. As a result, ferrous iron oxidation was greatly improved, resulting in enhanced metal solubilization. Compared with the 8, 10 and 12 days required for maximum solubilization of Zn, Cu and Cr for the control sludge, the bioleaching period was significantly shortened to 4, 5 and 8 days respectively for sludge receiving co-inoculation.
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Matos, Antonio T., Isabela C. C. Diniz, Mateus P. Matos, Alisson C. Borges, and Adriana A. Pereira. "Degradation rate of anaerobically digested sewage sludge in soil." Journal of Water, Sanitation and Hygiene for Development 8, no. 1 (November 16, 2017): 17–26. http://dx.doi.org/10.2166/washdev.2017.138.

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Abstract The objective of this study was to monitor the degradation and obtain the mineralization fraction of anaerobically digested sludge, also known as digestate, under field conditions, when applied to the surface or incorporated into the soil. Sludge was applied to a dystrophic Inceptisol at a dose of 500 kg ha–1 yr–1 of total nitrogen, where the monitoring period of the mineralization process lasted 131 days. Samples of the soil-residue mixture were collected for analysis of the total organic carbon (TOC) and easily oxidizable organic carbon (OOC), total, ammonia, nitrate and organic nitrogen (ON). The annual mineralization fractions of the digestate, estimated based on the difference between the initial and final contents of TOC, OOC and ON in samples of the material collected, were 99.5 and 100%, respectively, when incorporated with the soil or applied to the soil surface.
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Pathak, Ashish, M. G. Dastidar, and T. R. Sreekrishnan. "Bioleaching of heavy metals from anaerobically digested sewage sludge." Journal of Environmental Science and Health, Part A 43, no. 4 (February 19, 2008): 402–11. http://dx.doi.org/10.1080/10934520701795624.

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Nordin, Annika C., Jesper Olsson, and Björn Vinnerås. "Urea for Sanitization of Anaerobically Digested Dewatered Sewage Sludge." Environmental Engineering Science 32, no. 2 (February 2015): 86–94. http://dx.doi.org/10.1089/ees.2013.0230.

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Samorì, Chiara, Alisar Kiwan, Cristian Torri, Roberto Conti, Paola Galletti, and Emilio Tagliavini. "Polyhydroxyalkanoates and Crotonic Acid from Anaerobically Digested Sewage Sludge." ACS Sustainable Chemistry & Engineering 7, no. 12 (May 13, 2019): 10266–73. http://dx.doi.org/10.1021/acssuschemeng.8b06615.

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Дисертації з теми "Sewage sludge anaerobically digested"

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Qi, Yinan. "Effect of centrifugal dewatering on the regrowth of fecal coliforms and Salmonella in anaerobically digested biosolids." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 192 p, 2008. http://proquest.umi.com/pqdweb?did=1601522491&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Thesis (Ph.D.)--University of Delaware, 2008.
Principal faculty advisors: Steven K. Dentel, Dept. of Civil & Environmental Engineering; and Diane S. Herson, Dept. of Biological Sciences. Includes bibliographical references.
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Turkmen, Muserref. "Sulfur-containing odorants and the effects of high salinity in anaerobically digested biosolids." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 224 p, 2007. http://proquest.umi.com/pqdweb?did=1257807571&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Nash, Jeffrey William. "Characteristics and conditioning of anaerobically digested sludge from a biological phosphorus removal plant." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44128.

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A study of the anaerobically digested sludge form a full-scale biological phosphorus removal (BPR) plant (York River Wastewater Treatment Plant, York River, Va.) was conducted to determine the effects of BPR on sludge characteristics and conditioning requirements. Data collected from the plant indicated that both the total and soluble phosphorus (P) concentrations in the anaerobically digested sludge increased dramatically with the initiation of BPR. Accompanying this increase in total P was an increase in the total concentrations of magnesium and potassium content of the sludge, supporting the observations that these ions are coâ transported with P during the accumulation and release of P by P accumulating organisms. The majority of the phosphate present in the pre- and post- BPR anaerobically digested sludges was bound by calcium, magnesium, and iron phosphorus precipitates including hydroxyapatite, struvite, and vivianite. Calcium phosphorus precipitates were the most prevalent in both sludges, but the percentage of magnesium phosphorus precipitates increased with the onset of BPR. Cationic organic polymer conditioning dosages needed to achieve acceptable sludge dewatering rates for the post-BPR sludge were similar to those required by the pre-BPR sludge. The cationic organic polymer used to condition these sludges was ineffective in removing excess phosphate; therefore, the addition of either one or both of the inorganic chemicals ferric chloride and calcium hydroxide was required to remove soluble phosphorus. Conditioning with either ferric chloride or calcium hydroxide alone was not effective in achieving acceptable dewatering rates; however, when used together the chemicals produced acceptable dewatering rates and soluble P removal from the post-BPR sludge.
Master of Science
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4

Carliell-Marquet, Cynthia. "The effect of phosphorus enrichment on fractionation of metals and phosphorus in anaerobically digested sludge." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/17074.

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In designated nutrient-sensitive areas, phosphorus must be removed from sewage before it is discharged to the receiving water body. Phosphorus-rich sludge is generated, which is usually digested anaerobically prior to disposal. This research investigated the effect of phosphorus enrichment on metal and phosphorus fractionation in anaerobically digested sludge. The use of two complementary sequential chemical extraction procedures to measure phosphorus and metal fractionation, was a key focus of the research. The fractionation procedures were tested by sequentially extracting inorganic compounds (phosphates, sulphides and carbonates) which showed that the operationally defined metal and phosphorus fractions were not always representative of precise metal phases. Species were tentatively assigned to metal and phosphorus fractions using model compound results. Laboratory-scale batch anaerobic digestion experiments were performed, in which model compounds were used to simulate conditions of soluble and insoluble phosphorus enrichment. Soluble phosphorus at concentrations of 500 mg/l or greater was found to retard volatile solids removal and methane production in the laboratory digesters. Soluble phosphorus enrichment facilitated precipitation of calcium, magnesium and manganese but increased trace metal solubility, particularly that of chromium. Enrichment of digesters with Na2HP04 and MgCb caused struvite to precipitate in digesters containing 1000 mg/l of additional phosphorus. FeP04 enrichment of digested sludge showed that ferric iron was reduced to ferrous iron, releasing soluble phosphorus into the digester. Most of the phosphorus was reprecipitated as ferrous phosphate, causing co-precipitation of magnesium, manganese and cobalt. By contrast, A1P04 added to the digesters was stable in the sludge. Full-scale CPR sludge digestion (Fe2(S04)3 dosing) caused soluble phosphorus in the digester to decrease below 0.05 mg/l. Phosphorus remained associated with iron in the sludge fraction but soluble calcium and magnesium concentrations in the full-scale digester increased as a result of CPR sludge digestion. Comparison of laboratory and full-scale results showed that the fate of iron-precipitated phosphorus in digested sludge was primarily dependent pn the molar ratio of Fe:P in the sludge. Full-scale BPR sludge digestion showed high concentrations of soluble phosphorus in the digester and some struvite precipitation, although phosphorus was precipitated primarily as calcium phosphate, as was found to occur in the laboratory digesters simulating BPR sludge digestion.
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Gu, Xiangyang. "Improving heavy metal bioleaching efficiency through microbiological control of inhibitory substances in anaerobically digested sludge." HKBU Institutional Repository, 2003. http://repository.hkbu.edu.hk/etd_ra/504.

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CRISTINA, GIULIO. "The hidden potential of digested sewage sludge: a recycling approach to combat desertification." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2903484.

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Chan, Lau Chi. "Bioleaching of heavy metals from anaerobically digested sewage sludge using isolated indigenous iron- and sulphur-oxidizing bacteria." HKBU Institutional Repository, 2001. http://repository.hkbu.edu.hk/etd_ra/279.

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Huezo, Sanchez Luis. "Technical, economic, and carbon dioxide emission analyses of managing anaerobically digested sewage sludge through hydrothermal carbonization." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587121997256614.

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Dogan, Ilgin. "Combination Of Alkaline Solubilization With Microwave Digestion As A Sludge Disintegration Method: Effect On Gas Production And Quantity And Dewaterability Of Anaerobically Digested Sludge." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609685/index.pdf.

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The significant increase in the sewage sludge production in treatment plants makes anaerobic digestion more important as a stabilization process. However hydrolysis is the rate-limiting step of anaerobic digestion because of the semirigid structure of the microbial cells. Pretreatment of waste activated sludge (WAS) leads to disruption of cell walls and release of extracellular and intracellular materials. Therefore biodegradability of sludge will be improved in terms of more biogas production and sludge minimization. Among the pretreatment methods, alkaline, thermal and thermochemical pretreatments are effectual ones. Considering the effect of thermal pretreatment, microwave technology in which the sample reaches to elevated temperatures very rapidly is a very new pretreatment method. However no previous research has been conducted to test the effectiveness of microwave (MW) irradiation combined with alkaline pretreatment. Since both of these techniques seem to be highly effective, their combination can act synergistically and even more efficient method can be obtained. Therefore the main objective of this study was to investigate the effect of combination of a chemical method (alkaline pretreatment) and a physical method (microwave irradiation) in improving anaerobic digestion of WAS. In the first part of the study, alkaline and MW pretreatment methods were examined separately, then their combinations were investigated for the first time in the literature in terms of COD solubilization, turbidity and CST. Highest SCOD was achieved with the combined method of MW+pH-12. In the second part, based on the results obtained in the first part, alkaline pretreatments of pH-10 and pH-12
MW pretreatment alone and combined pretreatments of MW+pH-10 and MW+pH-12 pretreated WAS samples were anaerobically digested in small scale batch anaerobic reactors. In correlation with the highest protein and carbohydrate releases with MW+pH-12, highest total gas and methane productions were achieved with MW+pH-12 pretreatment reactor with 16.3% and 18.9% improvements over control reactor, respectively. Finally the performance of MW+pH-12 pretreatment was examined with 2L anaerobic semi-continuous reactors. 43.5% and 53.2% improvements were obtained in daily total gas and methane productions. TS, VS and TCOD reductions were improved by 24.9%, 35.4% and 30.3%, respectively. Pretreated digested sludge had 22% improved dewaterability than non-pretreated digested sludge. Higher SCOD and NH3-N concentrations were measured in the effluent of pretreated digested sludge
however, PO4-P concentration did not vary so much. Heavy metal concentrations of all digested sludges met Soil Pollution Control Regulation Standards. Finally a simple cost calculation was done for a MW+pH-12 pretreatment of WAS for a fictitious WWTP. Results showed that, WWTP can move into profit in 5.5 years.
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Straub, Timothy Mark 1963. "Inactivation of bacteriophages MS-2 and PRD1 and poliovirus type 1 in Pima Clay Loam and Brazito Sandy Loam soils amended with anaerobically digested sewage sludge." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277884.

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Inactivation of bacteriophages MS-2 and PRD1, and poliovirus type 1 were measured in Pima Clay Loam and Brazito Sandy Loam soils amended with anaerobically digested sewage sludge. Inactivation was determined at 15°C, 27°C, and 40°C with soils maintained at 30% moisture, and amended soils exposed to evaporation. No inactivation of PRD1 was observed within 30 days and 16 days at 15°C and 27°C respectively with little inactivation after 7 days at 40°C. Inactivation of MS-2 and poliovirus was approximately 2 fold greater at 27°C compared to 16°C. At 40°C neither virus was recovered 24 hours after sludge amendment. Evaporation to less than 5% soil moisture resulted in rapid loss of titer for all three viruses regardless of temperature. Survival of MS-2 and poliovirus 1 in sludge amended fields (15°C) was longer than comparable laboratory studies. None of the viruses were recovered in fields amended during the summer (33°C) after 7 days. A method was also developed to remove cell culture toxic components from these soils.
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Книги з теми "Sewage sludge anaerobically digested"

1

Higgins, Matthew J. Evaluation of bacterial pathogen and indicator densities after dewatering of anaerobicall digested biosolids phase II and III. Alexandria, Va: Water Environment Research Foundation, 2008.

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2

Rich, Kevin Kinnaird. Biological solubilization of metals from anaerobically digested sludge in a semicontinuous system. Ottawa: National Library of Canada, 1993.

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3

Mavi, Avtar S. Bacterial leaching of metals from anaerobically digested sludge disinfected with copper sulphate. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1991.

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4

New York State Energy Research and Development Authority. and Dynatech Scientific Inc, eds. Methane from partially digested sewage sludge using a stream injection rapid thermal reactor: Final report. [Albany, N.Y: The Authority, 1989.

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5

(Editor), M. J. Higgins, and S. Murthy (Editor), eds. Examination of Reactivation and Regrowth of Fecal Coliforms in Anaerobically Digested Sludge: Werf Report: Biosolids and Residuals Project 03-cts-13t (Werf Report). Intl Water Assn, 2008.

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6

Tongdhamachart, C., and E. F. Gloyna. Supercritical Water Oxidation of Anaerobically Digested Municipal Sludge (Crwr Technical Reports, No 231). Univ of Texas at Austin Center, 1992.

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Частини книг з теми "Sewage sludge anaerobically digested"

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Gupta, Swati, Arun Kansal, and Shivakshi Jasrotia. "Phosphorous Recovery as Struvite from Anaerobically Digested Sewage Sludge Liquors in Delhi, India." In Advances in Health and Environment Safety, 247–53. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7122-5_25.

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Houot, S., L. Cadot, and V. Gnanalingam. "Variations with pedoclimatic conditions of an anaerobically digested liquid sewage sludge C mineralisation and its N-NO 3 - availability." In Modern Agriculture and the Environment, 401–11. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5418-5_33.

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Koga, Daisuke. "Struvite Recovery from Digested Sewage Sludge." In Phosphorus Recovery and Recycling, 255–64. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8031-9_17.

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4

Mort, N. R., H. T. Hofstede, and R. A. Gibbs. "Giardia Die Off in Anaerobically Digested Wastewater Sludge During Composting." In The Science of Composting, 1242–46. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_151.

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Wong, Daniel, and Harrie Hofstede. "Optimisation of Anaerobically Digested Primary Sludge as a Composting Substrate." In The Science of Composting, 585–92. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_56.

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Peterson, A. E., P. E. Speth, R. B. Corey, T. H. Wright, and P. L. Schlecht. "Effect of Twelve Years of Liquid Digested Sludge Application on the Soil Phosphorus Level." In Sewage Sludge: Land Utilization and the Environment, 237–47. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1994.sewagesludge.c32.

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7

Wong, Daniel, and Harrie Hofstede. "The Effect of Red Mud on Metal Mobility in Anaerobically Digested Primary Sludge During Composting." In The Science of Composting, 1395–98. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_185.

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8

Selvaraj, Punjai T., and Kerry L. Sublette. "An Economic Analysis of Microbial Reduction of Sulfur Dioxide with Anaerobically Digested Sewage Biosolids as Electron Donor." In Seventeenth Symposium on Biotechnology for Fuels and Chemicals, 1003–12. Totowa, NJ: Humana Press, 1996. http://dx.doi.org/10.1007/978-1-4612-0223-3_94.

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9

Lai, C. M. L., and R. Y. H. Cheung. "Utilization of Pig-on-Litter Compost and Anaerobically Digested Sewage Sludge for the Growth of Edible Crops: Rate of Application and Effects of Heavy Metals." In Remediation and Management of Degraded Lands, 349–62. Routledge, 2018. http://dx.doi.org/10.1201/9780203740897-34.

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10

"Post treatment of anaerobically digested municipal sludge for enhanced ammonia, odors, coliforms, and micropollutants removal." In Post Treatments of Anaerobically Treated Effluents, 201–42. IWA Publishing, 2019. http://dx.doi.org/10.2166/9781780409740_0201.

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Тези доповідей конференцій з теми "Sewage sludge anaerobically digested"

1

Alonso-Vicario, A., A. M. Macarulla-Arenaza, I. Oribe-García, and A. Macarulla-Arenaza. "A comparative study for energetic valorisation of partially digested sewage sludge." In WASTE MANAGEMENT 2012. Southampton, UK: WIT Press, 2012. http://dx.doi.org/10.2495/wm120101.

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2

Tran, Thanh, Lam Van Giang, Van Doan Thi, and Le Thi Anh Hong. "Improvement of biogas production by anaerobic co- digestion of sewage sludge and cellulose digested microorganism." In II INTERNATIONAL SCIENTIFIC FORUM ON COMPUTER AND ENERGY SCIENCES (WFCES-II 2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0099557.

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3

Kasprzyk, Magda, Ewa Wojciechowska, Hanna Obarska–Pempkowiak, and Marta Thomas. "Preliminary Results from the Removal of Phosphorus Compounds with Selected Sorption Material." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.080.

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Анотація:
Due to the fact that resources of phosphorous are limited and are expected to get exhausted in the next 30 years the management of this resource has become extremely important. Most of the phosphorus compounds are lost forever, because they are discharged with sewage into surface water, causing eutrophication and in this way generating further issue and challenge. The aim of the study was to investigate the capacity to retain phosphorus compounds on sorption material. During the experiments, both synthetic and real wastewater were used. The synthetic wastewater simulated the composition of the reject water (RW) generated during the mechanical dewatering of the digested sewage sludge, and the real RW comes from WWTP in Gdansk. The investigation in steady conditions was carried out with Phoslock® which is chemically lanthanum clay. The results of the investigation are related to the determination of the sorption capacity with respect to the analyzed content of phosphorus compounds for stable conditions the determination of hydraulic load and way and time of mixing. For the synthetic wastewater the removal efficiency of phosphorous was 99.8% while for reject water (RW) generated during the mechanical dewatering of the digested sewage sludge was lower and equal to 85%.
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4

Elled, AnnaLena, Lars-Erik A˚mand, Bengt-A˚ke Andersson, and Bo Leckner. "Phosphorous in Ash From Co-Combustion of Municipal Sewage Sludge With Wood in a CFB Boiler: A Comparison of Experimental Data With Predictions by a Thermodynamic Equilibrium Model." In 18th International Conference on Fluidized Bed Combustion. ASMEDC, 2005. http://dx.doi.org/10.1115/fbc2005-78072.

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Combustion tests have been carried out in a circulating fluidised bed (CFB) boiler co-firing wood and municipal, digested and mechanical dewatered sewage sludge from two Swedish wastewater treatment plants, using either iron sulphate or aluminum sulphate as precipitating chemicals. Experimental data on the concentration of various phosphorous compounds in the ashes are compared with theoretical equilibrium predictions. A clear relationship is not found between the employed precipitation chemical and the formation of phosphorous compounds in the ash. Hematite (Fe2O3(s)) is predicted to be the stable iron compound, and even in the sludge precipitated by iron sulphate, the aluminium content is sufficient to form aluminium phosphate (AlPO4(s)) in similar amounts as in the sludge precipitated by aluminium sulphate. Lime addition to the bed gives a decreased formation of AlPO4(s) in favour of calcium orthophosphate (Ca3(PO4)2(s)), which interferes with the sulphur capture efficiency of lime.
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