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International Workshop on Diffuse Pollution-Management Measures and Control Technique (IWDCT 2010 E-BOOK)

Huainan,China,10.27-10.29,2010

ISBN: 978-1-935068-38-9 Scientific Research Publishing, USA

E-Book 394pp Pub. Date: October 2010

Category: Earth & Environmental Sciences

Price: $70

Title: Effectiveness of Inorganic Amendments in Immobilizing Containminants i n Sewage Sludge
Source: International Workshop on Diffuse Pollution-Management Measures and Control Technique (IWDCT 2010 E-BOOK) (pp 57-61)
Author(s): Zhen Liang, State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871,Beijing 100085, PR China
Lian Yu, State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871,Beijing 100085, PR China
Abstract: Sewage sludge is inevitable end by-product of sewage treatment. Land application provides a costeffective alternative for sewage sludge disposal. However, the release of contaminants from sewage sludge amended soils is a major source of water quality impairment. Therefore, sewage sludge immobilization seems necessary. In this work, red mud and lime were explored to immobilize the contaminants of sewage sludge. The results showed that red mud and lime could reduce the contaminants release. The results of XRD showed that there were no detectable changes in the mineralogy of sewage sludge after chemical amendments. EDX spectra of many red mud amended sewage sludge particles contained large Al peaks and lime amended sewage sludge particles contained large Ca peaks, while untreated sewage sludge particles showed little Al and Ca.
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