Solubility of ion and trace metals from stabilized sewage sludge by fly ash and alkaline mine tailing

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	Solubility of ion and trace metals from stabilized sewage sludge by fly ash and alkaline mine tailing
	Zhang, HL; Sun, L; Sun, TH; Sun, L, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2008
卷号	20 期号:6 页码:710-716
关键词	Stabilized Sewage Sludge Fly Ash Mine Tailing Artificial Soil Trace Element Solubility
ISSN号	1001-0742
英文摘要	Stabilized sewage sludge (SS) by fly ash (FA) and alkaline mine tailing as artificial soil, to be applied on the ecological rehabilitation at mining junkyards, offers a potentially viable utilization of the industrial by-product, as well as solves the shortage of soil resource in the mine area. An incubation experiment with different ratios of SS and FA was conducted to evaluate the solubility of ions and trace elements from stabilized sewage sludge. Results showed that fly ash offset a decrease in pH value of sewage sludge. The pH of (C) treatment (FA:SS = 1:1) was stable and tended to neutrality. The SO42- and Cl- concentrations of the solution in the mixture were significantly decreased in the stabilized sewage sludge by alkaline fly ash and mine tailing, compared to the single SS treatment. Stabilized sewage sludge by FA weakened the nitrification of total nitrogen from SS when the proportion of FA in the mixture was more than 50%. The Cr, Ni, and Cu concentrations in the solution were gradually decreased and achieved a stable level after 22 days, for all treatments over the duration of the incubation. Moreover stabilized sewage sludge by fly ash and/or mine tailing notably decreased the trace metal solubility. The final Cr, Cu, and Ni concentrations in the solution for all mixtures of treatments were lower than 2.5, 15, and 50 mu g/L, respectively.
学科主题	Environmental Sciences
语种	英语
WOS记录号	WOS:000256858400012
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54453]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Sun, L, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, HL,Sun, L,Sun, TH,et al. Solubility of ion and trace metals from stabilized sewage sludge by fly ash and alkaline mine tailing[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2008,20(6):710-716.
APA	Zhang, HL,Sun, L,Sun, TH,&Sun, L, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2008).Solubility of ion and trace metals from stabilized sewage sludge by fly ash and alkaline mine tailing.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,20(6),710-716.
MLA	Zhang, HL,et al."Solubility of ion and trace metals from stabilized sewage sludge by fly ash and alkaline mine tailing".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 20.6(2008):710-716.