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Residents’ Willingness to Pay for Improving Air Quality in jinan, china

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Chinese Journal of Population,Resources and Environment 2007年第2期5卷 12-19页

作者： Wang Yan, Zhang Yisheng, Wang Qian, Wang Wei school of environmental science and engineering, shandong university, jinan shandong 250100, china school of environmental science and engineering Shandong University Shandong 250100 Jinan China

Along with the progress of urbanization and environ- mental deterioration, residents’ desire for improved air quality is increasing. In order to quantify an individual’s willingness-to-pay (WTP) for improved air quality in jinan of eastern china, a contingent valuation method (CVM) was employed. A sample of 1,500 residents was chosen on the basis of multistage sampling methods with face-to-face interviews by using a series of hypo-thetical, open-ended scenario questions which were designed to elicit the respondents’ WTP. Results showed that 59.7% of respondents were able to express their WTP and the mean WTP is 100 Chinese Yuan (CNY) per person per year. A probit model on the probability of a positive WTP and a regression model were developed to find the relationship between endogenous variables and WTP. Most parameters in the econometric analysis had the expected sign. Annual household income and expenditure on treating respiratory diseases significantly influence WTP. The rates of positive WTP and the monetary amount are larger for men than for women. Results also showed that people who lived in more polluted areas were willing to pay more for clean air. Unlike developed countries, clean air may only be considered as a public good in china in that more than 40% of respondents had no incen- tive to bear the costs of attempting to achieve better air quality, which indicates the relatively low environmental consciousness.

关键词： air quality willingness to pay contingent valuation method jinan

Characterzation and separation of Al_(13) species using gel-filtration chromatography

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science china Chemistry 2006年第4期49卷 326-331页

作者： CHU Yongbao1,2, GAO Baoyu1, YUE Qinyan1, WANG Yan1 & WANG Shuguang1 1. school of environmental science and engineering, shandong university, jinan 250100, china 2. College of Material and Environment, Qingdao university of science and Technology, Qingdao 266042, china school of environmental science and engineering Shandong University Jinan China College of Material and Environment Qingdao University of Science and Technology Qingdao China

A polyaluminum chloride (PAC) sample was prepared using a slow alkalinetitration method. The Bio-Gel P-100 gel column chromatographic technique was used to separate andcharacterize the various forms of aluminum present in the prepared PAC solution. The effluents froma gel column were monitored using online chemical method: AI-Ferron timed complexationspectropho-tometry and by ^(27)Al nuclear magnetic resonance (NMR) spectroscopy. Effects ofdifferent experimental conditions such as eluent flow rate, ionic strength and pH on separation ofAl_(13) were investigated. Experimental results indicated that molecule size exclusion was not theonly parameter affecting the column chromatographic separation efficiency of Al_(13) but moleculecharge as well. Reducing the eluent flow rate, increasing the ionic strength and suitable pHresulted in increase in the separation efficiency. Experimental results clearly indicated that byvarying the experimental conditions, it is possible to produce pure Al_(13) species using a gelcolumn chromatographic technique.

关键词： Al13 species, column chromatography, polyaluminum chloride (PAC), separation and purification.

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ABR-BAF组合工艺处理大蒜切片废水

山东大学学报（理学版） 2009年第3期44卷 28-31页

作者：赵大传王伟山东大学环境科学与工程学院山东济南250100

研究了厌氧折流板反应器（almerobic baffled reactor，ABR）与曝气生物滤池（biological aerated filter，BAF）的组合工艺处理大蒜切片废水的运行特点。结果表明：ABR的最佳水力停留时间（HRT）为24h，有机负荷（COD）小于6ks／m^3·... 详细信息

研究了厌氧折流板反应器（almerobic baffled reactor，ABR）与曝气生物滤池（biological aerated filter，BAF）的组合工艺处理大蒜切片废水的运行特点。结果表明：ABR的最佳水力停留时间（HRT）为24h，有机负荷（COD）小于6ks／m^3·d为宜，COD的平均去除率可达87％；BAF的最佳HRT为16h，最佳气水比为10：1，进水有机负荷（COD）宜保持在1．1～1．4kg／m^3·d，COD的平均去除率为82．0％。ABR-BAF组合工艺COD总去除率保持在98．4％～98．7％之间，出水的COD质量浓度为79～94mg／L，出水水质满足GB8978—1996《污水综合排放标准》一级标准。

关键词：大蒜切片废水厌氧折流板反应器曝气生物滤池化学需氧量

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土壤中腐殖酸对汞的吸附特性研究

土壤通报 2009年第4期40卷 941-944页

作者：冯素萍刘慎坦山东大学环境科学与工程学院山东济南250100

采用静态吸附法研究了汞在腐殖酸上的吸附特性及动力学特征,结果表明常温下平衡吸附量随温度的升高而增加,温度大于20℃以上,吸附反应受温度的影响较小。溶液pH在5～9范围内,具有较高的吸附效率,有利于腐殖酸对汞吸附。吸附过程符合伪... 详细信息

采用静态吸附法研究了汞在腐殖酸上的吸附特性及动力学特征,结果表明常温下平衡吸附量随温度的升高而增加,温度大于20℃以上,吸附反应受温度的影响较小。溶液pH在5～9范围内,具有较高的吸附效率,有利于腐殖酸对汞吸附。吸附过程符合伪二级吸附速率方程,吸附速率常数k2随初始浓度的增加而减小,吸附过程属于化学吸附;符合Freundlich型吸附等温线。

关键词：腐殖酸汞吸附动力学速率常数

A STUDY ON IMPACT OF LIVESTOCK AND POULTRY BREEDING POLLUTION ON WATER ENVIRONMENT SAFETY IN shandong PROVINCE

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A STUDY ON IMPACT OF LIVESTOCK AND POULTRY BREEDING POLLUTIO...

钕改性钛基SnO_2/Sb电催化电极的制备及表征

16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS

作者： Taiying Huo①, Guihua Lu②, Yumei Wang③, Lijun Ren④ ①② Hohai university, Nanjing, 210098 china ③ school of Geography and Planning, Ludong university, Yantai, 264025 china ④ school of environmental science and engineering, shandong university, jinan, 250100 china

This paper briefly introduced the species of livestock and poultry in shandong Prov-ince, and the development trend of the main livestock and poultry. It mainly analyzed the quantity of excretion, and the temporal and spatial changing trend of the pollutants like nitrogen and phosphorus, as well as the amount and the development trend of those pollutants discharged into the water envi-ronment. It further conducted a comparative analysis of the pollution impact on water environment safety in shandong Province between the livestock and poultry breeding and fertilizer, agriculture, rural life pollution sources, and point sources respectively.

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中国稀土学报 2008年第3期26卷 291-297页

作者：李善评胡振曹翰林山东大学环境科学与工程学院山东济南250100

为改善钛基SnO2/Sb电极的电催化性能,采用浸渍法制备了Nd改性钛基SnO2/Sb电极。以活性艳红X-3B为目标有机物,考察电极的电催化性能,对制备温度和Nd掺杂量进行了研究,确定了适宜的制备条件为:热处理温度550℃,Nd掺杂量1.0%。采用SEM,EDS,... 详细信息

为改善钛基SnO2/Sb电极的电催化性能,采用浸渍法制备了Nd改性钛基SnO2/Sb电极。以活性艳红X-3B为目标有机物,考察电极的电催化性能,对制备温度和Nd掺杂量进行了研究,确定了适宜的制备条件为:热处理温度550℃,Nd掺杂量1.0%。采用SEM,EDS,XRD及XPS等分析方法对所制备电极的表面形貌、元素组成及结构进行分析,发现掺杂Nd可使SnO2粒径变小,有利于电极电催化性能的改善,同时Nd元素的引入可使杂质元素Sb,Nd在电极表面涂层富集。Nd改性钛基SnO2/Sb电极表面主要是四方相金红石结构的SnO2晶体,掺杂的Sb和Nd分别以Sb5+和Nd3+的形式存在。电极动电位扫描测试结果表明,Nd改性钛基SnO2/Sb电极具有较高的阳极析氧电位,有利于有机物的阳极氧化降解。

关键词： SnO2/Sb电极钕掺杂电催化稀土

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非水毛细管电泳对9种手性药物的拆分

色谱 2003年第2期21卷 138-142页

作者：初永宝蒋文强崔凤霞李关宾山东大学环境科学与工程学院山东济南250100 山东轻工业学院食品工程系山东济南250100

用非水毛细管电泳成功地分离了洛贝林、托吡卡胺、普萘洛尔、阿替洛尔、环扁桃酯、沙丁胺醇、苯海索、芬氟拉明和异丙嗪等9种手性化合物。以甲酰胺为介质、柠檬酸三羟甲基氨基甲烷(Tris)为电解质、在254nm波长下紫外检测。对手性选择... 详细信息

用非水毛细管电泳成功地分离了洛贝林、托吡卡胺、普萘洛尔、阿替洛尔、环扁桃酯、沙丁胺醇、苯海索、芬氟拉明和异丙嗪等9种手性化合物。以甲酰胺为介质、柠檬酸三羟甲基氨基甲烷(Tris)为电解质、在254nm波长下紫外检测。对手性选择剂的类型及浓度、背景电解质的pH值以及离子强度等因素对分离的影响做了系统的研究,最后确立了9种手性药物的最佳分离条件。实验发现,不同的手性选择剂对手性药物具有不同的分离选择性;每一种选择剂都存在一个相对水相体系较高的最佳浓度值而使分离效果最佳;在非水体系中,最佳pH值要比在水相体系中高;其分离效率也是随着体系中电泳介质离子强度的增大而升高。

关键词：手性药物非水毛细管电泳手性拆分甲酰胺分离

一株反硝化细菌LZ-14的筛选及其脱氮特性

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山东大学学报（工学版） 2009年第5期39卷 133-138页

作者：陈朋胡文容裴海燕山东大学环境科学与工程学院山东济南250100 山东省环境科学工程技术研究中心山东济南250061

采用稀释土壤悬液-涂布平板法从芦竹根际土壤中分离出22株具有硝酸盐还原能力的细菌,从中筛选出一株产气快、脱氮率高的反硝化细菌LZ-14.该菌株为革兰氏阴性菌,菌体短杆状,大小2.0μm×0.5μm,兼性厌氧,可运动.以乙酸钠为碳源、硝酸钾... 详细信息

采用稀释土壤悬液-涂布平板法从芦竹根际土壤中分离出22株具有硝酸盐还原能力的细菌,从中筛选出一株产气快、脱氮率高的反硝化细菌LZ-14.该菌株为革兰氏阴性菌,菌体短杆状,大小2.0μm×0.5μm,兼性厌氧,可运动.以乙酸钠为碳源、硝酸钾为氮源分别考察了n(C)/n(N)和pH值对菌株LZ-14生长及脱氮过程的影响.结果表明最佳n(C)/n(N)为5,在n(C)/n(N)为5,初始硝态氮质量浓度为150mg/L的情况下,36h内可将硝态氮完全去除,TN去除率可达到84.5%.最适pH值范围在7～8之间,此区间以外,菌株LZ-14难以生长及保持脱氮能力.菌株LZ-14的脱氮过程主要发生在菌体生长的第12～36h,并伴随有一定量亚硝酸盐的累积,随后24h内亚硝酸盐可被完全降解.

关键词：反硝化细菌筛选碳氮比 pH 生物脱氮

Novel Composite Flocculant Ployferric Chloride-Polydimethyldiallylammonium Chloride (PFC-PDMDAAC)

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Novel Composite Flocculant Ployferric Chloride-Polydimethyld...