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	1. Compacted Sewage Sludge as a Barrier for Tailings: the Bacterial Community Structure Diversity in the Compacted Sludge
	ZHANG Qing,ZHANG Huyuan,WANG Jinfang
	Environmental Science and Techology 24 July 2015
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	Abstract:Compacted sewage sludge barrier for tailings, known as reducing barrier, was innovatively double- functioned liner with its capsulation and elimination to Acid Mine Drainage (AMD) produced by tailings. The research had provided insights regarding the bacterial community structure diversity and dynamics over 75 days in the compacted sewage sludge specimens under 3 different seepage conditions (deionized water (DW), pH 2.1 sulfuric acid water (SA) and the synthetic AMD), by PCR-DGGE technique. The results indicated that at the start point (SP) of seepage, the 41st day (T1) of seepage or at the 75th day (T2) of seepage, under different seepage conditions (DW, SA and AMD), Clostridiales ,Bacillaceae and Carnobacteriaceae dominated in the compacted sewage sludge specimen with different relative abundance ranged from 46.26 % to 10.25 %. Redundancy analysis (RDA) on the influences between environmental factors (pH and heavy metals potential mobility in the compacted sludge specimens) and microbial community structure diversity showed the bacteria such as Carnobacteriaceae, Bacillaceae, Clostridiales Family XI. Incertae Sedis, Clostridiaceae, Lactobacillaceae, Peptoniphilaceae, Ruminococcaceae, Moraxellaceae, Caulobacteraceae, Corynebacteriaceae had positive relation to Zn potential mobility and pH; Carnobacteriaceae, Bacillaceae, Clostridiales Family XI. Incertae Sedis, Clostridiaceae, Micrococcineae, Moraxellaceae, uncertain family bacteria had positive relation with Fe potential mobility; Carnobacteriaceae, Clostridiaceae, Corynebacteriaceae had positive relation to Cd and Ni potential mobility; Ruminococcaceae had positive relation to Cu potential mobility.
	TO cite this article:ZHANG Qing,ZHANG Huyuan,WANG Jinfang. Compacted Sewage Sludge as a Barrier for Tailings: the Bacterial Community Structure Diversity in the Compacted Sludge[OL].[24 July 2015] http://en.paper.edu.cn/en_releasepaper/content/4650839


	2. Direct reduction of copper oxide into copper under hydrothermal conditions
	Yao Guodong,Huo Zhibao,Cao Jianglin,Jin Fangming
	Environmental Science and Techology 11 January 2011
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	Abstract:A new preparation method of Cu from CuO under hydrothermal conditions was investigated. Glucose was employed as reducing agent. Results showed that CuO can be reduced easily into Cuo with glucose as reductant at 220 to 250 C with NaOH. The reaction conditions such as reaction time, reaction temperature, sodium hydroxide concentration and water filling played key roles in purity of the products. The proposed method provides an efficient and green conversion of CuO into Cuo without expensive and toxic reducing agent at low temperatures.
	TO cite this article:Yao Guodong,Huo Zhibao,Cao Jianglin, et al. Direct reduction of copper oxide into copper under hydrothermal conditions[OL].[11 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4405839

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