標題: Variations of metal distribution in sewage sludge composting
作者: Nomeda, Sabiene
Valdas, Paulauskas
Chen, Shen-Yi
Lin, Jih-Gaw
環境工程研究所
Institute of Environmental Engineering
公開日期: 2008
摘要: In the study, the variations of heavy metal distributions (of Cu, Mn, Pb, and Zn) during the sewage S]sludge composting process were investigated by sequential extraction procedures. The total content of Cu and Zn ill the composted mixture increased after the composting process, Mn and Zn were mainly found in mobile fractions (exchangeable fraction (H), carbonate fraction (F2), and Fe/Mn oxide fraction (F3)). Cu and Pb were strongly associated with the stable fractions (organic matter/sulfides fraction (F4) and residual fraction (F5)). These five metal fractions were used to calculate the metal mobility (bioavailability) in the sewage sludge and composted mixture. The mobility (bioavailability) of Mn, Pb, and Zn (but not Cu) increased during the composting process. The metal mobility in the composted mixture ranked in the following order: Mn > Zn > Pb > Cu. (c) 2007 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11536/9863
http://dx.doi.org/10.1016/j.wasman.2007.06.022
ISSN: 0956-053X
DOI: 10.1016/j.wasman.2007.06.022
期刊: WASTE MANAGEMENT
Volume: 28
Issue: 9
起始頁: 1637
結束頁: 1644
顯示於類別:期刊論文


文件中的檔案:

  1. 000258432000017.pdf