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Pollution Control and Resource Recovery by Zhao Youcai

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Chapter Three

Heavy Metals and Recycling of Bottom Ash

Abstract

Determination methods and contents of total heavy metals, speciation analysis, heavy metals contents in different particle sizes, leaching toxicity, acid neutralizing capacity (ANC), leaching behavior with different sizes and leaching time, environmental safety evaluation system are fully provided. Treatment of livestock wastewater using a bottom ash (BA) bioreactor is described, and the different separation pretreatment technologies of BA are presented. Fe, Al, Zn, Cu, Ba, Pb, Cr, As, Ni, Co, Be, and Hg, together with precious metals and nonferrous metals, are present in the BA. However, both HVEP and TCLP tests demonstrate that the BAs have no toxicity at different leaching conditions. ...

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