Abstract
Chemical (acidic) and biological (under the action of acidogenic metabolites synthesized by microorganisms present in a sediment) extraction of heavy metals from colloidal sludge sediments produced at a wastewater biochemical treatment plant is studied. It is established that both methods provide at least 80% extraction of heavy metals, which decreases in the sequence Zn > Mn > Cu > Ni > Co > Pb > Cr. The advantage of the biological procedure is the possibility of using the processed sludge sediments, which contain many useful components, as fertilizers.
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Original Russian Text © K.V. Kalinichenko, G.N. Nikovskaya, Z.R. Ulberg, 2012, published in Kolloidnyi Zhurnal, 2012, Vol. 74, No. 5, pp. 576–581.
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Kalinichenko, K.V., Nikovskaya, G.N. & Ulberg, Z.R. Bioextraction of heavy metals from colloidal sludge systems. Colloid J 74, 553–557 (2012). https://doi.org/10.1134/S1061933X12050043
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DOI: https://doi.org/10.1134/S1061933X12050043