A Study on Nutrient Properties and Heavy Metal Concentrations of Waste Activated Sludge Derived from Municipal and Small Town Domestic Sewage Treatment Plants

DOI

10.2991/meep-15.2016.37How to use a DOI?

Keywords

domestic sewage sludge; nutrient; heavy metal; solid waste reuse

Abstract

In order to better understand land application of sewage sludge, the nutrient properties and heavy metal concentrations in sewage sludge were investigated from two different wastewater treatment plants in China. The results show that the OM contents were significantly different between Shenyang domestic sewage treatment plant and Ganqika domestic sewage treatment plant. The OM contents were 48.75% and 77.66%, respectively. The total nutrient contents, contained TN, TP and TK content, were 3.65% and 4.24%, respectively. It was found that the total concentrations of As (182.7 mg/kg dry matter) and Ni (109.0 mg/kg dry matter) in Shenyang sewage sludge, and Hg (23.7 mg/kg dry matter) in sewage sludge generated from Ganqika are higher than Chinese regulation limit of pollutant for sludge to be used for agriculture (GB18918-2002), Hg and Ni elements are main restrictive factor of sewage sludge application for agricultural Use.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - X.K. Sun
AU  - Y. Huang
AU  - X. Dong
AU  - C.B. Xu
AU  - J. Bai
PY  - 2016/03
DA  - 2016/03
TI  - A Study on Nutrient Properties and Heavy Metal Concentrations of Waste Activated Sludge Derived from Municipal and Small Town Domestic Sewage Treatment Plants
BT  - Proceedings of the 2015 International Conference on Materials Chemistry and Environmental Protection (meep-15)
PB  - Atlantis Press
SP  - 139
EP  - 141
SN  - 2352-541X
UR  - https://doi.org/10.2991/meep-15.2016.37
DO  - 10.2991/meep-15.2016.37
ID  - Sun2016/03
ER  -