Title :
Distribution of Heavy Metal Concentration of Sewage Sludge in China
Author :
Wu Xiao-Ying ; Li Jin-Ye ; Zhang Ming ; Shi Ming-Juan
Author_Institution :
Dept. of Safety & Environ. Eng., China Jiliang Univ., Hangzhou, China
Abstract :
Heavy metal contained in sewage sludge prevented the safety resource utilization of sludge and need to be disposed. Survey was conducted to find out main heavy metals in sludge generated in wastewater treatment plants in China and approximate content range of heavy metals in sewage sludge. The results showed that in domestic Cu and Zn were the main heavy metals with concentrations exceed the standard highly. And an order of Cr>; Zn>; Ni>; Cu indicated the concentration situation of electroplating sewage sludge. There are a large amount of heavy metal ions in textile and dyeing industry wastewater sewage sluge, and the order of concentration was Zn>; Cu>; Pb>; Ni>; Cr>; Cd. Cr was the most noteworthy heavy metal hazard heavy metal in tannery sludge.
Keywords :
electroplating; sewage treatment; sludge treatment; wastewater treatment; China wastewater treatment plants; dyeing industry wastewater sewage sluge; electroplating; heavy metal concentration; heavy metal hazard; heavy metal ions; safety resource utilization; tannery sludge; textile industry wastewater sewage sluge; Industries; Sewage treatment; Standards; Wastewater; Wastewater treatment; Zinc; domestic wastewater; heavy metal concentration; industrial wastewater; sewage sludge;
Conference_Titel :
Biomedical Engineering and Biotechnology (iCBEB), 2012 International Conference on
Conference_Location :
Macau, Macao
Print_ISBN :
978-1-4577-1987-5
DOI :
10.1109/iCBEB.2012.156
