Selection of optimum biological sludge for zinc removal from wastewater by a biosorption process |
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| Authors: | A Artola M Rigola |
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| Institution: | (1) Laboratori d'Enginyeria Química, i Ambiental. Facultat de Ciències, Universitat de Girona. Plaça Hospital 6, 17071 Girona, Spain |
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| Abstract: | Summary Biosorption of zinc by sludge micro-organisms obtained from different steps of a conventional SWT plant has been studied. The best types of activated sludge for the process were found to be thickened, anaerobic and dewatered sludge giving up to 90–98% of metal elimination when working at initial zinc concentration lower than 50 mg/l. A relationship between pH and conditional stability constant has been found. |
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