Electrokinetic remediation of copper polluted soil concatenated with an adsorption zone

Baskaran, V.; Dhivakar, M.R.; Gunasegaran, V.

doi:10.1016/j.enmm.2020.100395

Cited by 4 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Be fore gamma treat ment of the soil from that sam pling point, remediation should be done to re duce the cop per con tent. Some meth ods for re mov ing copper from soil in clude so lid i fi ca tion/sta bi li za tion, soil wash ing, vit ri fi ca tion, and flo ta tion [46][47][48]. Af ter suc cess fully re mov ing cop per from the soil, it can be treated with gamma ra di a tion due to mi cro bi o log i cal de ac ti va tion.…”

Section: De Ter MI Na Tion Of the Con Cen Tra Tion Of Heavy Met Als In Soilmentioning

confidence: 99%

Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia

et al. 2021

View full text Add to dashboard Cite

The Kolubara river pollutes the coastal land in the river basin and makes it unsuitable for agricultural activities in that area. Also, contaminated land poses a risk to the environment. Different methods can be used for soil decontamination. These methods include biological treatment/bioremediation, chemical oxidation, soil stabilization, physical methods, such as soil leaching, or treatment with high-energy ionizing radiation. Gamma irradiation of soil is a well-known method of inhibiting microbial activity. This paper investigated the influence of different doses and dose rates of gamma irradiation on microorganisms' decontamination of coastal soil, in the Kolubara river basin. The irradiation effects on reducing the total number of microorganisms and removing mold and pathogenic bacteria from soil samples were examined. Gamma radiation affects the soil's organic matter, causing the formation of free reactive radicals, which act as reducing and oxidizing agents, cleaving C-C bonds, and depolymerizing carbohydrates. It was found that a dose of 3 kGy of gamma radiation, neutralizes all pathogenic bacteria, a dose of 5 kGy deactivates mold in soil samples, and a dose of 10 kGy is optimal to kill all microorganisms in the samples and sterilize exposed soil. The research showed that the dose rate does not significantly affect microbiological decontamination of soil using gamma irradiation. The content of heavy metals in soil was determined, and the obtained values were compared with the remediation limit values prescribed by the regulations. It was concluded that the content of heavy metals in the analyzed soil samples is below the limit of remediation values. The only exception is the slightly increased copper content in one sample. The result of this research is the conclusion that the coastal land from the Kolubara basin can be decontaminated by gamma radiation treatment. This advanced soil treatment technology is available in Serbia because there is an industrial plant for gamma radiation treatment within the Vinca Institute.

show abstract

Section: De Ter MI Na Tion Of the Con Cen Tra Tion Of Heavy Met Als In Soilmentioning

confidence: 99%

Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Uma das vantagens de aplicar o método eletrolítico na eliminação dos íons poluentes em águas contaminadas consiste na capacidade de remover esses contaminantes sem necessidade de adicionar reagentes químicos. Esse método permite remover agentes contaminantes em águas contaminadas e solos heterogêneos, argilosos de baixa condutividade hidráulica (Acar;Alshawabkeh, 1993). No processo de remediação eletrocinética, o uso de aditivos tem sido utilizado para aumentar a eficiência de remoção de íons cobre no solo, onde chegou a atingir 51,72% no uso de técnicas eletrocinética (Baskara;Dhivakar;Gunasegaran, 2020).…”

Section: Introductionunclassified

“…Esse método permite remover agentes contaminantes em águas contaminadas e solos heterogêneos, argilosos de baixa condutividade hidráulica (Acar;Alshawabkeh, 1993). No processo de remediação eletrocinética, o uso de aditivos tem sido utilizado para aumentar a eficiência de remoção de íons cobre no solo, onde chegou a atingir 51,72% no uso de técnicas eletrocinética (Baskara;Dhivakar;Gunasegaran, 2020). Já em situação real de campo a remoção de cobre pelo método eletrocinético com adição de aditivos e eletrodos bipolares chegou a 42% (Hansen;Rojo;Ottosen, 2007).…”

Section: Introductionunclassified

Remediação Eletrocinética - Novas Técnicas

Hypólito

Sumi²

2021

Geociencias

View full text Add to dashboard Cite

Métodos de remediação eletroquímicos são aqueles que podem ser utilizados na separação/eliminação de poluentes iônicos como de metais pesados. Em estudos laboratoriais as técnicas eletrolíticas foram estudadas através de células eletroquímicas contendo eletrólitos em solução e eletrodos em substrato artificial de caulim, solo natural e solo natural contaminada. Constatou-se que as melhores condições de eletrólise consistiram de soluções fortemente ácidas, maior superfície útil dos eletrodos e menor distâncias entre eles. Estudos com solo natural coletado na Região Metropolitana de São Paulo artificialmente contaminado com Cu2+ indicaram que, apesar do solo ser constituído essencialmente por caulim, o comportamento da eletrodeposição dos íons cobre (II) não foi semelhante ao experimento com caulim. Certamente outros constituintes iônicos presentes no solo natural interferiram no processo eletrolítico diminuindo o rendimento da deposição. Sabendo das limitações técnicas utilizadas tradicionalmente nos processos de remediação eletrocinética, baseando-se nos resultados experimentais deste trabalho, esses processos foram inovados, aplicando os eletrodos minimamente separados em um único poço. Como essa nova técnica, inédita, a redução dos íons cobre na água subterrânea ocorreu em curto espaço de tempo. O desenvolvimento deste aparato/técnica possibilitou o pedido de patente junto à USP Inovação (RPI – página 127 –BR 10 2016018392-8 2.1).

show abstract

Remediation of cadmium-contaminated soil using modified activated carbon fiber combined with electrodynamic remediation technology

Zhou,

Cheng,

Wan

2024

Rend. Fis. Acc. Lincei

View full text Add to dashboard Cite

Electrokinetic remediation of copper polluted soil concatenated with an adsorption zone

Cited by 4 publications

References 14 publications

Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia

Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia

Remediação Eletrocinética - Novas Técnicas

Remediation of cadmium-contaminated soil using modified activated carbon fiber combined with electrodynamic remediation technology

Contact Info

Product

Resources

About