Bibliografias temáticas / Soil remediation

Literatura científica selecionada sobre o tema "Soil remediation"

Autor: Grafiati
Publicado: 4 de junho de 2021
Última modificação: 2 de março de 2023

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Artigos de revistas sobre o assunto "Soil remediation":

1

Wang, Yu, Feng Pan, Qiong Wang, Jie Luo, Qin Zhang, Yingying Pan, Chenliang Wu e Wei Liu. "The Effect of Different Remediation Treatments on Soil Fungal Communities in Rare Earth Tailings Soil". Forests 13, n.º 12 (24 de novembro de 2022): 1987. http://dx.doi.org/10.3390/f13121987.

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Extensive mining of rare earth deposits has caused severe soil erosion, resulting in the degradation of plant–soil systems and the reduction in microbial diversity. Combined ecological remediation technology is the key method of vegetation reconstruction and ecological restoration in abandoned tailings. In this study, the effects of different cover crops–biochar–organic fertilizer and biochar–organic fertilizer treatments on soil fungal communities in rare earth tailings soil were analysed using high-throughput sequencing technology. Linear discriminant analysis effect size (LEfSe) was used to analyse saprophytic, mycorrhizal, and potential pathogenic fungi in soils after different combined remediations. Moreover, the effects of soil environmental factors on fungal community species’ composition were analysed by redundancy analysis (RDA) and variance partitioning analysis (VPA) after different combined remediations. LEfSe indicated a risk of citrus pathogenicity by Diaporthaceae indicator fungi after biochar–organic fertilizer combined treatment. RDA and VPA revealed that pH was the main environmental factor affecting the fungal community in the different combined remediation treatments. Additionally, the Paspalum wettsteinii cover crops–biochar–organic fertilizer and biochar–livestock manure treatments were more conducive to arbuscular mycorrhizal fungi recruitment. We also clarified the fungal community composition structure, soil environmental factors, and fungal community relationships in rare earth tailings soil after different combined remediation treatments.
2

Lu, Yichang, Jiaqi Cheng, Jieni Wang, Fangfang Zhang, Yijun Tian, Chenxiao Liu, Leichang Cao e Yanmei Zhou. "Efficient Remediation of Cadmium Contamination in Soil by Functionalized Biochar: Recent Advances, Challenges, and Future Prospects". Processes 10, n.º 8 (17 de agosto de 2022): 1627. http://dx.doi.org/10.3390/pr10081627.

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Heavy metal pollution in soil seriously harms human health and animal and plant growth. Among them, cadmium pollution is one of the most serious issues. As a promising remediation material for cadmium pollution in soil, functionalized biochar has attracted wide attention in the last decade. This paper summarizes the preparation technology of biochar, the existing forms of heavy metals in soil, the remediation mechanism of biochar for remediating cadmium contamination in soil, and the factors affecting the remediation process, and discusses the latest research advances of functionalized biochar for remediating cadmium contamination in soil. Finally, the challenges encountered by the implementation of biochar for remediating Cd contamination in soil are summarized, and the prospects in this field are highlighted for its expected industrial large-scale implementation.
3

Lee, Sang-Hwan, Soon-Oh Kim, Sang-Woo Lee, Min-Suk Kim e Hyun Park. "Application of Soil Washing and Thermal Desorption for Sustainable Remediation and Reuse of Remediated Soil". Sustainability 13, n.º 22 (12 de novembro de 2021): 12523. http://dx.doi.org/10.3390/su132212523.

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Global governance of soil resources as well as revitalizations and remediation of degraded areas seem to be necessary actions for sustainable development. A great deal of effort has gone into developing remediation technologies to remove or reduce the impact of these contaminants in the environment. However, contaminated soil remediations in stringent conditions deteriorate soil properties and functions and create the need for efficient soil revitalization measures. Soil washing (SW) and thermal desorption (TD) are commonly used to remediate contaminated soil and can significantly reduce the contaminant, sometimes to safe levels where reuse can be considered; however, the effects of treatment on soil quality must be understood in order to support redevelopment after remediation. In this review, we discussed the effects of SW and TD on soil properties, including subsequent soil quality and health. Furthermore, the importance of these techniques for remediation and reclamation strategies was discussed. Some restoration strategies were also proposed for the recovery of soil quality. In addition, remediated and revitalized soil can be reused for various purposes, which can be accepted as an implementation of sustainable remediation. This review concludes with an outlook of future research efforts that will further shift SW and TD toward sustainable remediation.
4

Alazaiza, Motasem Y. D., Ahmed Albahnasawi, Gomaa A. M. Ali, Mohammed J. K. Bashir, Nadim K. Copty, Salem S. Abu Amr, Mohammed F. M. Abushammala e Tahra Al Maskari. "Recent Advances of Nanoremediation Technologies for Soil and Groundwater Remediation: A Review". Water 13, n.º 16 (10 de agosto de 2021): 2186. http://dx.doi.org/10.3390/w13162186.

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Nanotechnology has been widely used in many fields including in soil and groundwater remediation. Nanoremediation has emerged as an effective, rapid, and efficient technology for soil and groundwater contaminated with petroleum pollutants and heavy metals. This review provides an overview of the application of nanomaterials for environmental cleanup, such as soil and groundwater remediation. Four types of nanomaterials, namely nanoscale zero-valent iron (nZVI), carbon nanotubes (CNTs), and metallic and magnetic nanoparticles (MNPs), are presented and discussed. In addition, the potential environmental risks of the nanomaterial application in soil remediation are highlighted. Moreover, this review provides insight into the combination of nanoremediation with other remediation technologies. The study demonstrates that nZVI had been widely studied for high-efficiency environmental remediation due to its high reactivity and excellent contaminant immobilization capability. CNTs have received more attention for remediation of organic and inorganic contaminants because of their unique adsorption characteristics. Environmental remediations using metal and MNPs are also favorable due to their facile magnetic separation and unique metal-ion adsorption. The modified nZVI showed less toxicity towards soil bacteria than bare nZVI; thus, modifying or coating nZVI could reduce its ecotoxicity. The combination of nanoremediation with other remediation technology is shown to be a valuable soil remediation technique as the synergetic effects may increase the sustainability of the applied process towards green technology for soil remediation.
5

Samokhvalova, V., A. Fateev, S. Zuza, Ya Pogromska, V. Zuza, Ye Panasenko e P. Gorpinchenko. "Phytoremediation of technologically polluted soils". Agroecological journal, n.º 1 (5 de março de 2015): 92–100. http://dx.doi.org/10.33730/2077-4893.1.2015.272192.

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We have elaborated the methodological approach for phytoremediation of anthropogenic contamination of soils by heavy metals (HM) according to the results of soil-geochemical investigations of the impact zones of the anthropogenic emissions of pollution sources of JSC «Ukrzink», JSC «Avdiivka coking plant» in Donetsk region. Methodological approach to anthropogenic contamination soil with HM is developed, method of soil phytoremediation for its more effective use, in which due to the expansion of spectrum use as phytoremediation dominant herbaceous wild plant species of competing families Asteraceae, Fabaceae and Poaceae with their interleaving in space and time, significantly extended the range of extraction different hazard classes HM out of the soil, increasing the efficiency of their biological remediation of different soil layers with increasing depth cleaning directly in the area of HM pollution (in situ), which ensures the minimization of the costs, continuity and intensification of the phytoremediation process of contaminated soils. The technical result of the elaborated method is expanding the range of plant remediaton use of different competitive families resistant to contamination and various biological potential phytoextraction and phytoaccumulation of HM, which ensures the reduction of soil cleanup, optimize its use due to the reduction of the period of biological remediation and remediation of contaminated soils and simultaneous avoidance of excessive process load on the soil.
6

Pan, Lixuan, Liangang Mao, Haonan Zhang, Pingping Wang, Chi Wu, Jun Xie, Bochi Yu et al. "Modified Biochar as a More Promising Amendment Agent for Remediation of Pesticide-Contaminated Soils: Modification Methods, Mechanisms, Applications, and Future Perspectives". Applied Sciences 12, n.º 22 (14 de novembro de 2022): 11544. http://dx.doi.org/10.3390/app122211544.

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With the acceleration of the process of agricultural modernization, many pesticides (insecticides, fungicides, and herbicides) are applied to the field and finally brought into the soils, causing serious damage to the environment. The problem of pesticide pollution has become increasingly prominent. This has highlighted the urgent need for effective and efficient remediation treatment technology for pesticide-contaminated soils. Biochar has a high specific surface area, high porosity, and strong adsorption capacity, making it a soil amendment agent and carbon fixation agent that can improve soil health and enhance adsorption capacity for pesticides to remediate contaminated soils. Recently, efforts have been made to enhance the physicochemical and adsorption properties of biochar by preparing modified biochar, and it has been developed to expand the application of biochar. Specifically, the following aspects were reviewed and discussed: (i) source and modification methods of biochar for pesticide remediation; (ii) the effect of biochar on the environmental fate of remediating pesticides; (iii) the effect of biochar on pesticide-contaminated soils; and (iv) potential problems for the large-scale promotion and application of biochar remediation of pesticides. In conclusion, this review may serve as a reference and guide for pesticide remediation, hence reducing the environmental concerns associated with pesticides in soil.
7

Taraqqi-A-Kamal, A., Christopher J. Atkinson, Aimal Khan, Kaikai Zhang, Peng Sun, Sharmin Akther e Yanrong Zhang. "Biochar remediation of soil: linking biochar production with function in heavy metal contaminated soils". Plant, Soil and Environment 67, No. 4 (30 de março de 2021): 183–201. http://dx.doi.org/10.17221/544/2020-pse.

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The focus of this study is on the soil physicochemical, biological, and microbiological processes altered by biochar application to heavy metal (HM) contaminated soils. The aim is to highlight agronomical and environmental issues by which the restorative capacity of biochar might be developed. Literature shows biochar can induce soil remediation, however, it is unclear how soil processes are linked mechanistically to biochar production and if these processes can be manipulated to enhance soil remediation. The literature often fails to contribute to an improved understanding of the mechanisms by which biochar alters soil function. It is clear that factors such as biochar feedstock, pyrolysis conditions, application rate, and soil type are determinants in biochar soil functionality. These factors are developed to enhance our insight into production routes and the benefits of biochar in HM soil remediation. Despite a large number of studies of biochar in soils, there is little understanding of long-term effects, this is particularly true with respect to the use and need for reapplication in soil remediation.
8

Lee, Sang Hwan, Jung Hyun Lee, Woo Chul Jung, Misun Park, Min Suk Kim, Seung Jae Lee e Hyun Park. "Changes in Soil Health with Remediation of Petroleum Hydrocarbon Contaminated Soils Using Two Different Remediation Technologies". Sustainability 12, n.º 23 (3 de dezembro de 2020): 10078. http://dx.doi.org/10.3390/su122310078.

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For sustainable soil management, there is an increasing demand for soil quality, resilience, and health assessment. After remediation of petroleum hydrocarbon (PHC)-contaminated soils, changes in the physicochemical and ecological characteristics of the soil were investigated. Two kinds of remediation technologies were applied to contaminated soils: land farming (LF) and high temperature thermal desorption (HTTD). As a result of total petroleum hydrocarbons (TPH), PHC-contaminated soils were efficiently remediated by LF and HTTD. The soil health could not be completely recovered after the removal of pollutants due to adverse changes in the soil properties, especially in soil enzyme activities. Therefore, monitoring is necessary for accurate estimation of soil ecotoxicity and effective remediation, and additional soil management, such as fertilizer application or organic amendments, is needed to restore soil heath. In the case of HTTD, soil ecological properties are severely changed during the remediation process. The decision to reuse or recycle remediated soils should reflect changes in soil quality. HTTD is a harsh remediation method that results in deterioration of soil fertility and ecological functions. Alternatives, such as low-temperature thermal desorption or additional soil management using fertilizer or organic amendments, for example, are needed.
9

Kowalska, Aneta, Bal Ram Singh e Anna Grobelak. "Carbon Footprint for Post-Mining Soils: The Dynamic of Net CO2 Fluxes and SOC Sequestration at Different Soil Remediation Stages under Reforestation". Energies 15, n.º 24 (13 de dezembro de 2022): 9452. http://dx.doi.org/10.3390/en15249452.

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The remediation of open-cast post-mining soil remains a big challenge. Here, the post-mining soils are considered from the viewpoints of CO2 emission and carbon sequestration. We investigated the dynamic of C stock in two different post-mining areas, i.e., the limestone post-mining soil remediated with embankment (S1), and the lignite post-mining soil remediated with sewage sludge (S2). Post-mining soils under four different remediation stages were used. The study was conducted in the spring of 2021 and 2022. The aim of the study was to assess the C sequestration in sewage sludge amended and non-amended post-mining soils at differently advanced remediation techniques. We noticed an increase in or stabilization of SOC in the S1. The stabilization of SOC was observed for the soil with a higher remediation age (S1C, S1D). The remediation of the S2 resulted in the increase in SOC among the soil remediation age. For both soils, we noticed a negative CO2 emission from the soil under remediation, and the net CO2 emission rate (NCER) further decreased after one year. A positive C feedback of both remediation techniques was shown to reflect lower active carbon (POXC). We also noticed an increase in nutrient content (K, Mg), and a decrease in heavy metals content after 1 year. Such a positive relationship between the remediation of post-mining soils and C sequestration indicates a step towards climate change mitigation.
10

Barbosa Ferreira, Maiara, Aline Maria Sales Solano, Elisama Vieira dos Santos, Carlos A. Martínez-Huitle e Soliu O. Ganiyu. "Coupling of Anodic Oxidation and Soil Remediation Processes: A Review". Materials 13, n.º 19 (27 de setembro de 2020): 4309. http://dx.doi.org/10.3390/ma13194309.

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In recent years, due to industrial modernization and agricultural mechanization, several environmental consequences have been observed, which make sustainable development difficult. Soil, as an important component of ecosystem and a key resource for the survival of human and animals, has been under constant contamination from different human activities. Contaminated soils and sites require remediation not only because of the hazardous threat it possess to the environment but also due to the shortage of fresh land for both agriculture and urbanization. Combined or coupled remediation technologies are one of the efficient processes for the treatment of contaminated soils. In these technologies, two or more soil remediation techniques are applied simultaneously or sequentially, in which one technique complements the other, making the treatment very efficient. Coupling anodic oxidation (AO) and soil remediation for the treatment of soil contaminated with organics has been studied via two configurations: (i) soil remediation, ex situ AO, where AO is used as a post-treatment stage for the treatment of effluents from soil remediation process and (ii) soil remediation, in situ AO, where both processes are applied simultaneously. The former is the most widely investigated configuration of the combined processes, while the latter is less common due to the greater diffusion dependency of AO as an electrode process. In this review, the concept of soil washing (SW)/soil flushing (SF) and electrokinetic as soil remediation techniques are briefly explained followed by a discussion of different configurations of combined AO and soil remediation.
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Artigos de revistas Teses / dissertações Livros

Teses / dissertações sobre o assunto "Soil remediation":

1

Mewett, John University of Ballarat. "Electrokinetic remediation of arsenic contaminated soils". University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12797.

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"Arsenic is a common soil contaminant in Australia and worldwide. There is a need to find safe, effective and economic methods to deal with this problem. The soils used in this research were collected from central Victoria. They were contaminated with arsenic by historic gold mining activity or by past sheep dipping practices. This research investigated ten different leaching agents for their effects on three different arsenic contaminated soils. [...] Electrokinetic experiments were conducted on three arsenic contaminated soils. [...] The arsenic in these soils appears to be relatively stable and immobile under oxidising conditions. The soils had a high iron content which assists in the stabilisation of arsenic. This is beneficial with respect to the environmental impact of the arsenic contamination, however, it remains an obstacle to low cost electrokinetic remediation."
Masters of Applied Science
2

Mewett, John. "Electrokinetic remediation of arsenic contaminated soils". Thesis, University of Ballarat, 2005. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/68354.

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"Arsenic is a common soil contaminant in Australia and worldwide. There is a need to find safe, effective and economic methods to deal with this problem. The soils used in this research were collected from central Victoria. They were contaminated with arsenic by historic gold mining activity or by past sheep dipping practices. This research investigated ten different leaching agents for their effects on three different arsenic contaminated soils. [...] Electrokinetic experiments were conducted on three arsenic contaminated soils. [...] The arsenic in these soils appears to be relatively stable and immobile under oxidising conditions. The soils had a high iron content which assists in the stabilisation of arsenic. This is beneficial with respect to the environmental impact of the arsenic contamination, however, it remains an obstacle to low cost electrokinetic remediation."
Masters of Applied Science
3

Mewett, John. "Electrokinetic remediation of arsenic contaminated soils". University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/14633.

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"Arsenic is a common soil contaminant in Australia and worldwide. There is a need to find safe, effective and economic methods to deal with this problem. The soils used in this research were collected from central Victoria. They were contaminated with arsenic by historic gold mining activity or by past sheep dipping practices. This research investigated ten different leaching agents for their effects on three different arsenic contaminated soils. [...] Electrokinetic experiments were conducted on three arsenic contaminated soils. [...] The arsenic in these soils appears to be relatively stable and immobile under oxidising conditions. The soils had a high iron content which assists in the stabilisation of arsenic. This is beneficial with respect to the environmental impact of the arsenic contamination, however, it remains an obstacle to low cost electrokinetic remediation."
Masters of Applied Science
4

Eftekhari, Farzad. "Foam-surfactant technology in soil remediation". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0018/MQ54314.pdf.

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5

Spracklin, Katherine Helen. "The remediation of industrially contaminated soil". Thesis, University of Newcastle Upon Tyne, 1992. http://hdl.handle.net/10443/656.

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The remediation of two contaminated soils in the Tyne and Wear Metropolitan district was examined. These were a sediment dredged from the river bed at Dunston Coal Staiths on the River Tyne (downstream from Derwenthaugh coke work site) and coke work-contaminated soil from the Derwenthaugh site, Blaydon, Nr. Newcastle-upon-Tyne. The river Tyne dredgings were of a very fine material (70% silt; 24% clay) with high water retention capacity. Levels of (EDTA available) Zn (490mg/kg), total Cd (7.5mg/kg) and total Pb (510mg/kg) were above the Department of Environment's (1987) threshold values for soil contaminants. Barley (Hordeuin vulgare L. cv Kym) sown in the drcdgings in ten outdoor plots (Irn x 0.5m), grew very poorly (yield = 2.4g dry wt. /plant, compared with that on an uncontaminatedc. ontrol soil (7.4g dry wt./ plant). The barley exhibited all the classic signs of metal phytotoxicity despite the addition of fcrtiliscr and organic waste (straw and spent mushroom compost). When lime was added to raise the pH of the dredgings in the plots to over pH 7.1, the growth rate and the yield of barley improved significantly (yield = 6.8g dry wt. /plant). Levels of available Zn, Cd, Pb and Cu in the limed dredgings were now lower than in the unlimed dredgings. Copper and zinc levels in leaves of barley raised on the limed material were lower than levels in barley grown on unlimed dredgings. There was no significant difference in yield or growth rate between the different plots of dredgings in which organic supplementation parameters were varied. In conclusion, pH was the dominant factor in the remediation of the heavy metal phytotoxicity in the dredged material. Gas chromatography/mass spectrophotometry analysis showed the principal contaminants of the coke works soil to be organic. The soil was heavily contaminated with coal tars (19.0%) consisting of a complex mixture of aliphatic, polycyclic and aromatic compounds including phenols (160mg/kg). Viable counts of the soil microflora, on selective media, showed the presence of bacteria capable of degrading phenol and several of its alkylated homologues and thiocyanate, which was converted to ammonia and used as aN source. The coke works soil was treated on a laboratory scale using microbially based clean-up methods. Soil was incubated in glass jars under laboratory conditions. Nu trients (yeast extract) and microbial biomass (a mixed culture, previously isolated and enriched by growth on cresol and thiocyanate, but capable of oxidising a wide range of alkylated phenols), were inoculated into the contaminated soil. The addition of such biomass (106 organisms /g soil) led to a marked improvement in the rate of phenolic degradation in the soil (26% loss in'22 weeks, compared with 9% in the untreated control. ). Degradation rates decreased after 14 days but a repeated application of biomass (106 organisms/g soil) caused further phenolic loss (47% total loss). Cresol (100mg/kg) subsequently added to the bacterial ly-amended soil disappeared within 7 days, showing that the biomass amendment was still biochemically very active. These findings demonstrate the importance and the effectiveness of two different treatment methods in the rcmediation of contaminated soil.
6

Niarchos, Georgios. "Electrodialytic Remediation of PFAS-Contaminated Soil". Thesis, KTH, Vatten- och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-239878.

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Per- and polyfluoroalkyl substances (PFASs) are a group of anthropogenic aliphatic compounds, widelyknown for their environmental persistence and toxicity to living beings. While they are ubiquitous in theenvironment, interest has been focused on contaminated soil, which can act as a primary recipient andsource of groundwater contamination. Electrokinetic technology is based on the movement of ionsunder the effect of an electric field. This could be a promising remediation solution, since PFASs areusually present in their anionic form. The contaminants can then be concentrated towards the anode,thus reducing a plume’s volume and possibly extracting the substances from soil. The preliminary aimof the present study was to evaluate the potential of using electrodialysis for the remediation of PFAScontaminatedsoil for the first time. Experiments were run with natural contaminated soil samples,originating from a fire-fighting training site at Arlanda Airport, and at Kallinge, Sweden, as well as inartificially spikedsoil. Electrodes were placed in electrolyte-filled chambers and separated by the soilwith ion-exchange membranes for pH-control. In total, five experiments were conducted. Two differentsetups were tested, a typical 3-compartment EKR cell and a 2-compartment setup, to allow for pHincrease and facilitate PFAS desorption. Two different current densities were tested; 0.19 mA cm-2 and0.38 mA cm-2. After twenty-one days, soil was cut in ten parts lengthwise and triplicate samples wereanalysed for PFAS concentrations, with HPLC-MS/MS. Sixteen out of the twenty-six screened PFASswere detected above MDL in the natural soil samples. The majority of the detected PFASs showed apositive trend of electromigration towards the anode, under both current densities, with only longerchainedcompounds (c>8) being immobile. This can be attributed to the stronger sorption potential oflong-chained PFAS molecules, as has been reported in previous sorption studies. Mass balancedistribution for a high current density (0.38 mA cm-2) experiment revealed that 73.2% of Σ26PFAS wasconcentrated towards the anode, with 59% at the soil closer to the anode, 5.7% at the anion exchangemembrane and 8.5% at the anolyte. It also showed higher mobility for short-chained molecules (c≤6),as they were the only compounds to be extracted from soil and be concentrated in the anolyte. Highercurrent densities were not directly correlated with higher electromigration rates, as to the lack of massbalance data for the low current density experiments. Regardless, electrodialysis could be a viable optionfor PFAS soil remediation and further research to encourage the understanding of the migrationmechanism, as well as combination with other treatment methods is encouraged.
Per- och polyfluoralkylsubstanser (PFAS) är en grupp av antropogena alifatiska föreningar, allmäntkända för sin miljöpåverkan och toxicitet för levande varelser. Medan de är allestädes närvarande imiljön har intresset varit inriktat på förorenad mark, som kan fungera som primär mottagare och källatill grundvattenförorening. Elektrokinetisk teknik är baserad på jonernas rörelse under effekten av ettelektriskt fält. Detta kan vara en lovande lösningsmedel, eftersom PFAS är vanligtvis närvarande i sinanjoniska form. Föroreningarna kan sedan koncentreras mot anoden, vilket reducerar en plums volymoch eventuellt extraherar ämnena från jorden. Det preliminära målet med den föreliggande studien varatt utvärdera potentialen att använda elektrodialys för sanering av PFAS-förorenad jord för förstagången. Experimenten kördes med naturliga förorenade jordprover, härrörande från enbrandbekämpningsplats vid Arlanda flygplats, och i Kallinge, Sverige, samt i konstgjort spikedsol.Elektroder placerades i elektrolytfyllda kamrar och separerades av jorden med jonbytesmembran förpH-kontroll. Totalt genomfördes fem experiment. Två olika inställningar testades, en typisk 3-facksEKR-cell och en 2-facksinställning, vilket möjliggör pH-ökning och underlättar PFAS-desorption. Tvåolika strömtätheter testades; 0,19 mA cm-2 och 0,38 mA cm-2. Efter tjugo dagar skärs jorden i tio delari längdriktningen och trippelprover analyserades för PFAS-koncentrationer, med HPLC-MS / MS.Sexton av de tjugosex screenade PFAS: erna detekterades över MDL i de naturliga markproverna.Majoriteten av de upptäckta PFAS-värdena visade en positiv trend av elektromigration mot anodenunder båda strömtätheten, varvid endast längre kedjiga föreningar (c> 8) var immobila. Detta kanhänföras till den starkare sorptionspotentialen hos långkedjiga PFAS-molekyler, vilket har rapporteratsi tidigare sorptionsstudier. Massbalansfördelning för ett experiment med hög strömtäthet (0,38 mA cm-2) visade att 73,2% av Σ26PFAS koncentrerades mot anoden, med 59% vid jorden närmare anoden, 5,7%vid anjonbytarmembranet och 8,5% vid anolyten. Det visade också högre rörlighet för kortkedjigamolekyler (c≤6), eftersom de var de enda föreningarna som skulle extraheras från jord och koncentrerasi anolyten. Högre strömtätheter var inte direkt korrelerade med högre elektromigrationshastigheter,avseende bristen på massbalansdata för experimenten med låg strömtäthet. Oavsett elektrodialys kandet vara ett lönsamt alternativ för PFAS-markrening och ytterligare forskning för att uppmuntraförståelsen för migrationsmekanismen, liksom kombinationen med andra behandlingsmetoder främjas.
7

Anunike, Chidinma. "Deployment of calcium polysulphide for the remediation of chromite ore processing residue". Thesis, University of Aberdeen, 2015. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=227912.

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Chromium contamination of groundwater and soils continues to pose a major environmental concern. Soils may have become contaminated with chromium through former industrial activities geochemical enrichment. The nature of the industrial activity will determine the form and concentration of the chromium as well as the presence of co-contaminants and the pH and redox of the soil. Chemical reductants have been widely used for the transformation of hexavalent chromium in the environment. Over recent decades attention focused on the chemical reductant calcium polysulphide which has performed effectively in the treatment of groundwater and soil samples contaminated with Cr(VI). Yet a detailed understanding of calcium polysulphide (CaSx) performance has not yet been established. Hexavalent chromium concentrations in aqueous and groundwater samples were significantly reduced by calcium polysulphide and CaSx:chromate molar ratio of 1.5 was sufficient to prevent partitioning of Cr(VI) into solution and to precipitate the solution phase. Calcium polysulphide was used for the remediation of solid chromite ore processing residue (COPR) samples. Prior to the application of calcium polysulphide to COPR, each of the key steps were optimized. A range-finding experiment was conducted to understand the dosage and treatment regime at which Cr(VI) immobilization within COPR was optimal. The results indicated that unsaturated deployment of CaSx into the medium outperformed that in saturated systems. A higher polysulphide amendment dose of 5% w/v concentration enhanced the final treatment of Cr(VI) within COPR. The toxicity and carcinogenicity of Cr(VI) over Cr(III) requires a technique capable of discriminating between valencies. The EPA Method 7196A specifically quantifies the concentrations of Cr(VI) in environmental samples and was used for all analysis to differentiate between Cr(VI) and Cr(III). Cr(III) was calculated as the difference between the Cr(VI) and Cr-total concentrations. In addition to the EPA 7196A, a novel ion exchange resin (IER) procedure was developed to differentiate the two species of chromium. After optimisation, Amberlite resins IRA 400 and IR-120 were used for the specific sorption and subsequent analysis of aqueous Cr(VI) and Cr(III) solutions. For the selective removal of chromate from groundwater, waste water and soil samples, Amberlite IRA 400 achieved a consistent performance of >97% removal in a range of trials. The IERs in this work were applied as analytical tools however they could be applied as remediation tools. While aqueous treatment of chromium contaminated media using CaSx was very successful, COPR treatment proved to be difficult due to the complex nature of the system. An understanding of stoichiometric responses to CaSX has been established, but the nuances of soil physicochemical interactions require more thorough investigation.
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Walter, David J. "Soil enhancement by fluid injection for in situ treatment of contaminated soil". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0008/NQ52695.pdf.

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Williamson, Derek Guthrie. "Relating release and biodegradation kinetics in soils containing aged mixtures of hydrocarbons /". Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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McNear, David H. "The plant soil interface nickel bioavailability and the mechanisms of plant hyperaccumulation /". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file [ ] Mb., 234 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3205442.

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Livros sobre o assunto "Soil remediation":

1

Lukas, Aachen, e Eichmann Paul 1966-, eds. Soil remediation. Hauppauge, NY, USA: Nova Science Publishers, 2009.

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2

Mirsal, Ibrahim A. Soil pollution: Origin, monitoring & remediation. 2a ed. Berlin: Springer, 2008.

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3

Johnson, John B. Soil remediation technology. Norwalk, CT: Business Communications Co., 1999.

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4

C, Anderson William, American Academy of Environmental Engineers. e WASTECH, eds. Soil washing/soil flushing. Annapolis, Md: American Academy of Environmental Engineers, 1993.

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5

Reddy, R. N. Soil engineering: Testing, design and remediation. New Dehli: Gene-Tech Books, 2010.

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6

Otten, Almar, Arne Alphenaar, Charles Pijls, Frank Spuij e Han Wit. In Situ Soil Remediation. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5594-6.

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Meuser, Helmut. Soil Remediation and Rehabilitation. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5751-6.

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8

Almar, Otten, ed. In situ soil remediation. Dordrecht: Kluwer Academic Publishers, 1997.

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9

Friend, David J. Remediation of petroleum-contaminated soils. Washington, D.C: National Academy Press, 1996.

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Osman, Khan Towhid. Soil Degradation, Conservation and Remediation. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7590-9.

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Capítulos de livros sobre o assunto "Soil remediation":

1

Goud, E. Lokesh, Prasann Kumar e Bhupendra Koul. "Soil Remediation". In Nanomaterials for Environmental Applications, 261–80. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003129042-10.

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W. Rate, Andrew. "Urban Soil Remediation". In Urban Soils, 351–98. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-87316-5_11.

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Spellman, Frank R. "Soil Pollution Remediation". In The Science of Environmental Pollution, 319–52. 4a ed. Fourth edition. | Boca Raton: CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003180906-19.

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Osman, Khan Towhid. "Soil Resources and Soil Degradation". In Soil Degradation, Conservation and Remediation, 1–43. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7590-9_1.

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Kuhad, Ramesh Chander, e Rishi Gupta. "Biological Remediation of Petroleum Contaminants". In Soil Biology, 173–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89621-0_9.

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Branzini, Agustina, e Marta S. Zubillaga. "Phytostabilization as Soil Remediation Strategy". In Soil Biology, 177–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35564-6_10.

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7

Otten, Almar, Arne Alphenaar, Charles Pijls, Frank Spuij e Han Wit. "The Role of in Situ Remediation in the Remediation Practice". In Soil & Environment, 92–94. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5594-6_8.

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8

Osman, Khan Towhid. "Soil Pollution". In Soil Degradation, Conservation and Remediation, 149–226. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7590-9_6.

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Dermatas, Dimitris, e Iraklis Panagiotakis. "Contaminated Soil contaminated soil , Remediation of". In Encyclopedia of Sustainability Science and Technology, 2430–54. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_98.

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Koning, Michael, Karsten Hupe e Rainer Stegmann. "Soil Remediation and Disposal". In Environmental Biotechnology, 259–74. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527604286.ch9.

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Trabalhos de conferências sobre o assunto "Soil remediation":

1

Liu, Yunsong, Jiajun Chen, Xingwei Wang, Meng Wei e Lanxiang Shi. "Compatibility of Polymer and Remediation Agents for Enhanced Soil Remediation". In 2015 6th International Conference on Manufacturing Science and Engineering. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icmse-15.2015.121.

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Ribeiro, A., C. Vilarinho, J. Araújo e J. Carvalho. "Electrokinetic Remediation of Contaminated Soils With Chromium". In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87552.

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Soil is a vital natural resource that regulates our environment sustainability and provide essential resources to humans and nature. Nowadays, with an increasingly populated and urbanized world, pollution is widely recognized as a significant challenge to soil and groundwater resources management. The most common chemicals found in soils and water plumb in a dissolved state and considered as potential pollutants are heavy metals, dyes, phenols, detergents, pesticides, polychlorinated biphenyls (PCBs), and others organic substances, such as organic matter. Unlike organic contaminants, heavy metals are not biodegradable and tend to accumulate in living organisms and many heavy metal ions are known to be toxic or carcinogenic. Toxic heavy metals of particular concern zinc, copper, nickel, mercury, cadmium, lead and chromium. Electrokinetic remediation deserves particular attention in soil treatment due to its peculiar advantages, including the capability of treating fine and low permeability materials, and achieving consolidation, dewatering and removal of salts and inorganic contaminants like heavy metals in a single stage. In this study, the remediation of artificially chromium contaminated soil by electrokinetic process, coupled with Eggshell Inorganic Fraction Powder (EGGIF) permeable reactive barrier (PRB), was investigated. An electric field of 2 V cm−1 was applied and was used an EGGIF/soil ratio of 30 g kg−1 of contaminated soil for the preparation of the permeable reactive barrier (PRB) in each test. Results proved that the study of chromium mobility revealed the predominance in its transportation through the soil towards the anode, due essentially to the existence of chromium in the form of oxyanions (chromate and dichromate), which confers a negative charge to the molecule. Chromium removal by electrokinetic remediation was faster in low levels of concentration and the utilization of citric acid as buffer and complexing agent allowed to maintain pH of soil below the precipitation limit for this element. It was obtained high removal rates of chromium in both experiments, especially near the anode. In the normalized distance to cathode of 0.8 it was achieved a maximum removal rate of chromium of 55, 59 and 60% in initial chromium concentration of 500 mg kg−1, 250 mg kg−1 and 100 mg kg−1, respectively. The viability of the new coupling technology developed (electrokinetic with EGGIF permeable reactive barrier) to treat low-permeability polluted soils was demonstrated. Based on the proved efficiency, this remediation technique has to be optimized and applied to real soils in order to validate it as a large-scale solution.
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Deuel, Lloyd E. E., e George H. Holliday. "Hydrocarbon Impacted Soil and Waste Remediation". In SPE/EPA/DOE Exploration and Production Environmental Conference. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/80596-ms.

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4

Fels, Helmut, Stephan Becker e Rainer Pietsch. "New aspects of soil remediation technologies". In European Symposium on Optics for Environmental and Public Safety, editado por Tuan Vo-Dinh. SPIE, 1995. http://dx.doi.org/10.1117/12.224128.

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Karachaliou, T., e D. Kaliampakos. "Bridging mining theory with soil remediation". In BROWNFIELDS 2008. Southampton, UK: WIT Press, 2008. http://dx.doi.org/10.2495/bf080091.

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6

Zheng, Lei, Sungho Yoon e Anne Dudek Ronan. "Remediation of Gasoline Contaminated Soil Using Surfactant Enhanced Aquifer Remediation (SEAR)". In World Environmental And Water Resources Congress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412312.015.

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7

Wittenbach, Stuart, Steve Lower e Chris Biagi. "Use of Soil Venting for Remediation of Condensate Contaminated Soils". In SPE/EPA Exploration and Production Environmental Conference. Society of Petroleum Engineers, 1999. http://dx.doi.org/10.2118/52718-ms.

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8

Degiorgi, Marco, Pierpaolo Usai, Nunzia Fontana, Chiara Ciampalini, Agostino Monorchio, Matteo Bertoneri, Sara Tonlorenzi et al. "Radio frequency system for thermal soil remediation". In 2016 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium). IEEE, 2016. http://dx.doi.org/10.1109/usnc-ursi.2016.7588522.

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9

Rathod, Deendayal, e P. V. Sivapullaiah. "Electro-Kinetic Remediation of Sulphate from Soil". In Geo-Chicago 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784480168.022.

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Hubert J. Montas e Adel Shirmohammadi. "Modeling of Soil Remediation by Nanoscale Particles". In 2004, Ottawa, Canada August 1 - 4, 2004. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2004. http://dx.doi.org/10.13031/2013.17680.

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Relatórios de organizações sobre o assunto "Soil remediation":

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Manlapig, D. M., e Williamsws. Soil Remediation Test. Office of Scientific and Technical Information (OSTI), abril de 2002. http://dx.doi.org/10.2172/793446.

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SKELLY, W. A. AX Tank farm soil remediation study. Office of Scientific and Technical Information (OSTI), março de 1999. http://dx.doi.org/10.2172/781595.

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Jayaweera, Indira S., Montserrat Marti-Perez, Jordi Diaz-Ferrero e Angel Sanjurjo. Water as a Reagent for Soil Remediation. Office of Scientific and Technical Information (OSTI), março de 2003. http://dx.doi.org/10.2172/808528.

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4

Indira S. Jayaweera, Montserrat Marti-Perez, Jordi Diaz-Ferrero e Angel Sanjurjo. WATER AS A REAGENT FOR SOIL REMEDIATION. Office of Scientific and Technical Information (OSTI), novembro de 2001. http://dx.doi.org/10.2172/808964.

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5

Indira S. Jayaweera, Montserrat Marti-Perez, Jordi Diaz-Ferrero e Angel Sanjurjo. WATER AS A REAGENT FOR SOIL REMEDIATION. Office of Scientific and Technical Information (OSTI), março de 2001. http://dx.doi.org/10.2172/824937.

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6

Indira S. Jayaweera e Jordi Diaz-Ferraro. WATER AS A REAGENT FOR SOIL REMEDIATION. Office of Scientific and Technical Information (OSTI), fevereiro de 2000. http://dx.doi.org/10.2172/824939.

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Wu, J. M., H. S. Huang e C. D. Livengood. Development of an ultrasonic process for soil remediation. Office of Scientific and Technical Information (OSTI), junho de 1995. http://dx.doi.org/10.2172/78718.

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8

Patten, J. S. Review of the Vortec soil remediation demonstration program. Office of Scientific and Technical Information (OSTI), dezembro de 1994. http://dx.doi.org/10.2172/10121884.

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J. Hnat, L.M. Bartone e M. Pineda. INNOVATIVE FOSSIL FUEL FIRED VITRIFICATION TECHNOLOGY FOR SOIL REMEDIATION. Office of Scientific and Technical Information (OSTI), julho de 2001. http://dx.doi.org/10.2172/881861.

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Regan, A. H., M. E. Palomares, C. Polston, D. E. Rees, W. T. Roybal e T. J. Ross. In situ RF/microwave remediation of soil experiment overview. Office of Scientific and Technical Information (OSTI), setembro de 1995. http://dx.doi.org/10.2172/102158.

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