Effects of heavy metals on activated sludge process

Date

1992-01-01

Author

Dilek, Filiz Bengü
Yetiş, Ülkü

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The purpose of this study was to evaluate the toxic effects nf various heavy metals on activated sludge process. Different concentrations of Cu(II) (0.5, 1.0, 5.0, and 10.0 mg/l), Ni(II) (5.0, 10.0, 25.0 mg/l), and Cr(VI) (1.0, 5.0, 10.0, 25.0, 50.0 mg/l) were maintained in a laboratory-scale completely mixed activated sludge unit, without recycle, treating simulated wastewater. The feed solution contained 650 mg/l protein (corresponding to 1300 mg/l COD) as a source nf carbon. Experimental results indicated that the treatment efficiency was not adversely affected by the presence of these heavy metals up to 10.0 mg/l Cu(II), 10.0 mg/l Ni(II) and 50.0 mg/l Cr(II) concentrations. Moreover, some stimulatory effect, of these heavy metals on the biokinetic parameters, maximum specific growth rate and half-substrate saturation coefficient were observed.

Subject Keywords

Engineering, Environmental, Environmental Sciences, Water Resources

URI

https://hdl.handle.net/11511/52826

Journal

Water Science And Technology

Collections

Department of Environmental Engineering, Article

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Citation Formats

F. B. Dilek and Ü. Yetiş, “Effects of heavy metals on activated sludge process,” Water Science And Technology, pp. 801–813, 1992, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52826.