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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. Study of pattern and products of salting out in treating mustard tuber wastewater by mixed hybrid membrane bioreactor
	CHAI Hongxiang,AI Nanping,CHEN Wei
	Environmental Science and Techology 01 February 2013
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	Abstract:When treating a mustard tuber wastewater with high concentration of salt and nitrogen by mixed hybrid membrane bioreactor, the salting out could accelerate speed of membrane fouling that would lead to the decrease of membrane flux, even make the membrane useless due to the membrane damage. In order to solve this problem, an experimental research was carried to study of the pattern and the products of salting out in treating mustard tuber wastewater by membrane bioreactor(MBR). According to the analysis of salting out, it could provide theoretical foundations for slowing down and preventing membrane from fouling. The research showed that the crystal precipitation, the filamentous sludge, the grainy sludge and sludge lumping would respectively adhere to the membrane modules when the experimental water temperature was respectively controlled at under 10 C, between 10 C and 15 C, and above 15 C. So it could be concluded that temperature was the main factor of effecting salting out, and lower temperature leaded to more salting out as well as more servere membrane fouling. The degree of salting out of the four situations was crystal precipitation> filamentous sludge adhering> grainy sludge adhering≈sludge lumping.
	TO cite this article:CHAI Hongxiang,AI Nanping,CHEN Wei. Study of pattern and products of salting out in treating mustard tuber wastewater by mixed hybrid membrane bioreactor[OL].[ 1 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4515613


	3. Study on the inhibition of methanogenesis in anaerobic granules by methyl fluoride
	HAO Liping,LI Lei,LU Fan,SHAO Liming,HE Pinjing
	Environmental Science and Techology 13 February 2011
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	Abstract:Methyl fluoride (CH3F), applied at the appropriate concentration, is considered to be a rather specific inhibitor of acetoclastic methanogenesis (AM), while hydrogenotrophic methanogenesis (HM) is unaffected. Although the application of CH3F for quantifying methanogenic pathways in natural anoxic environments has been well established, its effect on methanogenesis in anaerobic granules is few reported. Herein, we tested the inhibition of CH3F on methanogenesis in the mesophilic anaerobic granules and evaluated this inhibitor technique to monitor carbon flow in artificial methanogenic systems. The results showed that the inhibitory effect increased with the initial CH3F concentrations up to 5%. Stable maximum inhibition with 97.5% methanogenic activity reduced was achieved when 5% CH3F was added to the gas, which was higher than that applied in other anoxic systems.
	TO cite this article:HAO Liping,LI Lei,LU Fan, et al. Study on the inhibition of methanogenesis in anaerobic granules by methyl fluoride[OL].[13 February 2011] http://en.paper.edu.cn/en_releasepaper/content/4410647


	4. 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


	5. Analysis of the development of global carbon offsets
	Pan Lingxiao,Xu Jiren,Yang Yuanxuan
	Environmental Science and Techology 01 August 2010
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	Abstract:A carbon offset is a financial instrument aimed at a reduction in greenhouse gas emissions.Carbon offsetting has gained some appeal and momentum mainly among consumers in western countries who have become aware and concerned about the potentially negative environmental effects of energy-intensive lifestyles and economies. In this papper, we will analysis the development situation of carbon offset.
	TO cite this article:Pan Lingxiao,Xu Jiren,Yang Yuanxuan. Analysis of the development of global carbon offsets[OL].[ 1 August 2010] http://en.paper.edu.cn/en_releasepaper/content/4380468


	6. Research on Forecasting Method of Urban Water Demand Based on Fuzzy Theory
	Hongbo Liu,Tegang Deng,Hongwei Zhang
	Environmental Science and Techology 07 January 2009
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	Abstract:Water demand forecasting is of great importance in urban water supply management. A large number of researches have been done on water demand forecasting method, which requires easy operation and high accuracy. To meet the requirements, combining advantages of fuzzy inference system and neural network, a new forecasting method, adaptive neuro-fuzzy inference system(ANFIS), based on fuzzy theory was presented. In ANFIS, fuzzy rules are obtained from the data sample, and appropriate membership function parameters are gained through hybrid- learning algorithm, which contributes to effective and quick forecasting. Along with the properties of ANFIS, four input variables were brought up, which coupled all main impact factors together in the model. In the procedure of modeling and forecasting, the software, Matlab, can assist the design of ANFIS, which makes this method easy to master and operate for most users. Furthermore, a case was studied, and the results indicated that the predicting precision of this method can satisfy the engineering request.
	TO cite this article:Hongbo Liu,Tegang Deng,Hongwei Zhang. Research on Forecasting Method of Urban Water Demand Based on Fuzzy Theory[OL].[ 7 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27462

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