handle: 11104/0295559
This paper is focused on a pilot scale electrocoagulation method for heavy toxic metal removal from contaminated ground water and waste water. High efficiency, over 99 % removal of ions Cr6+ and Ni2+ (after arise pH to value 9) has been achieved, during treatment groundwater with content 40 respectively 90 mg/l of chromium and nickel. Mainly disadvantage this technology was coating of electrode plate with ferrous oxides or hydroxides and decreasing of heavy metal removal. It was necessary performed periodical flushing with water and regeneration electrode plates helpful solution of H3P04. Following application of electrocoagulation was performed in wastewater produced from leaking of fly ash from incineration plant of municipal waste. Electrocoagulation process was very effective for reducing of Zn and Pb, but decrease of content Cd was only 20 %. It was found, that Cd must be coprecipitated with Na2S and other alternatives are not effective. Thus, for this electrocoagulation technology was found appropriate utilization for effectively reduce of Zn content.\n
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handle: 11104/0295559
This paper is focused on a pilot scale electrocoagulation method for heavy toxic metal removal from contaminated ground water and waste water. High efficiency, over 99 % removal of ions Cr6+ and Ni2+ (after arise pH to value 9) has been achieved, during treatment groundwater with content 40 respectively 90 mg/l of chromium and nickel. Mainly disadvantage this technology was coating of electrode plate with ferrous oxides or hydroxides and decreasing of heavy metal removal. It was necessary performed periodical flushing with water and regeneration electrode plates helpful solution of H3P04. Following application of electrocoagulation was performed in wastewater produced from leaking of fly ash from incineration plant of municipal waste. Electrocoagulation process was very effective for reducing of Zn and Pb, but decrease of content Cd was only 20 %. It was found, that Cd must be coprecipitated with Na2S and other alternatives are not effective. Thus, for this electrocoagulation technology was found appropriate utilization for effectively reduce of Zn content.\n
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Green |
citations | 0 | |
popularity | Average | |
influence | Average | |
impulse | Average |
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