Environmental Risk and Recoverable Potential Evaluation of Heavy Metals in the Sludge from the Industrial Wastewater in China
During the treatment of wastewater from metal production and processing industries, a huge volume of sludge is generated. Sludge from the industrial effluent is usually abandoned or used in agriculture as fertilizer due to the presence of phosphorus, potassium and other inorganic elements, or landfilled. In our work, metals concentration in the sludge from different industries of multi-area, China, was determined and the recoverable potential was assessed. It indicated that the sludge from electroplating, PCB, leather treatment, metal smelter and stainless steel industries was restricted its use as a fertilizer because that the sludge had too high concentration of toxic heavy metals. Meanwhile, it was seen that Ag, Cu, Co, Ni, Pb, Zn contents in the sludge from some industries had exceeded the minimum standards of industrial smelting and had the value recycled. It is imperative and beneficial to find a low-cost, environmentally friendly recycling technology to recover the metals in sludge from industrial wastewater.
Industrial Wastewater Sludge Heavy Metals Environmental Risk Recoverable Potential
Bai Jianfeng Zhang Chenlong Wang Jingwei Xu Jinqiu Zhou Yuan Wu Wenjie
School of Urban Development and Environmental Engineering,Shanghai Second Polytechnic University, Shanghai, P.R. China, 201209
国际会议
上海
英文
196-199
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）