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《环境污染与防治》2005,27(5):399-400
双碱法在工程运用中pH变化规律研究曹晓满王祖武李超(武汉大学资源与环境科学学院环境工程系,湖北武汉430079)介绍了双碱法烟气脱硫工艺在北京某供暖中心的工程运用。研究了工程运用中pH的变化规律,经过分析得出控制系统运行时的最佳pH。关键词双碱法烟气脱硫pH南水北调东平湖污染调查与防治研究张欣1曹颖2喻宗仁2赵培才2(1.泰山学院化学系,山东泰安271021;2.泰安市环境保护监测站,山东泰安271000)调查了造成目前东平湖水质污染的原因。结果表明,东平湖上游大汶河流域水质的恶化、湖区水产养殖业、湖区周边地区季节性地瓜淀粉加工业和湖区… 相似文献
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作为南水北调输水明渠的京杭大运河,将成为受水区人民的生命河。因此,对北调的水质如何保证不受其污染,就要对每一个可能产生的污染源采取有效的防治措施。 相似文献
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南四湖入湖河口水质综合分析与改善效果评估 总被引:2,自引:0,他引:2
南四湖是南水北调东线工程重要的输水通道和调蓄湖泊,随着通水时间的临近,南四湖入湖河流的水质状况更加受到关注.通过对4次南四湖水质空间分布35个入湖河口的监测数据的统计比较和污染负荷量分析,在分析计算平均综合污染指数和等标污染负荷的基础上,进行不同河流的污染状况比较和水质改善效果评估.研究表明,2010-2011年南四湖入湖河口水质平均综合污染指数(1.56)比2006-2007年(2.73)下降了42.9%,重污染河流由12条减少为3条;南四湖入湖污染负荷总量削减率总体达到了66.0%,入湖污染负荷量分布75%以上集中在主要排污河流,南四湖流域的污染物以TN为主;南四湖的重污染河流为房庄河、老运河和洸府河,10条主要排污河流为老运河、洸府河、东鱼河、房庄河、泗河、洙赵新河、白马河、薛城小沙河、新薛河、新万福河,这些河流是南四湖流域治污的重点. 相似文献
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本文应用水质评价指数(WIg)=(sum form n=1 to n (C_iW_i)/K)~(1/2)等模式,和模糊集概念.对葛洲坝库区水质影响进行了初步评价,结果表明:葛洲坝工程的截流蓄水对库区水质没有显著影响. 相似文献
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水污染是困扰淮阴区工农业发展的问题之一。因此对盐河淮阴区段近几年来的水质状况进行了评价,分析了水体污染形成的原因及发展趋势,阐述了污染特征和程度,并提出了改善水环境的对策。 相似文献
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Green roofs as a means of pollution abatement 总被引:3,自引:0,他引:3
Rowe DB 《Environmental pollution (Barking, Essex : 1987)》2011,159(8-9):2100-2110
Green roofs involve growing vegetation on rooftops and are one tool that can help mitigate the negative effects of pollution. This review encompasses published research to date on how green roofs can help mitigate pollution, how green roof materials influence the magnitude of these benefits, and suggests future research directions. The discussion concentrates on how green roofs influence air pollution, carbon dioxide emissions, carbon sequestration, longevity of roofing membranes that result in fewer roofing materials in landfills, water quality of stormwater runoff, and noise pollution. Suggestions for future directions for research include plant selection, development of improved growing substrates, urban rooftop agriculture, water quality of runoff, supplemental irrigation, the use of grey water, air pollution, carbon sequestration, effects on human health, combining green roofs with complementary related technologies, and economics and policy issues. 相似文献
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Spatial distribution and source apportionment of water pollution in different administrative zones of Wen-Rui-Tang (WRT) river watershed, China 总被引:3,自引:1,他引:2
Liping Yang Kun Mei Xingmei Liu Laosheng Wu Minghua Zhang Jianming Xu Fan Wang 《Environmental science and pollution research international》2013,20(8):5341-5352
Water quality degradation in river systems has caused great concerns all over the world. Identifying the spatial distribution and sources of water pollutants is the very first step for efficient water quality management. A set of water samples collected bimonthly at 12 monitoring sites in 2009 and 2010 were analyzed to determine the spatial distribution of critical parameters and to apportion the sources of pollutants in Wen-Rui-Tang (WRT) river watershed, near the East China Sea. The 12 monitoring sites were divided into three administrative zones of urban, suburban, and rural zones considering differences in land use and population density. Multivariate statistical methods [one-way analysis of variance, principal component analysis (PCA), and absolute principal component score—multiple linear regression (APCS-MLR) methods] were used to investigate the spatial distribution of water quality and to apportion the pollution sources. Results showed that most water quality parameters had no significant difference between the urban and suburban zones, whereas these two zones showed worse water quality than the rural zone. Based on PCA and APCS-MLR analysis, urban domestic sewage and commercial/service pollution, suburban domestic sewage along with fluorine point source pollution, and agricultural nonpoint source pollution with rural domestic sewage pollution were identified to the main pollution sources in urban, suburban, and rural zones, respectively. Understanding the water pollution characteristics of different administrative zones could put insights into effective water management policy-making especially in the area across various administrative zones. 相似文献
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Ni Qingjian Cao Xuehan Tan Chaoqun Peng Wenqiang Kang Xuying 《Environmental science and pollution research international》2023,30(5):11516-11529
Environmental Science and Pollution Research - The analysis and prediction of water quality are of great significance to water quality management and pollution control. In general, current water... 相似文献
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Tunisia has very limited potential of surface and groundwater resources which are subject to different quantitative and qualitative forms of degradation. The risk of groundwater pollution results from the interaction between the vulnerability of aquifers to pollution and anthropogenic activities. Our research focuses on the study of the Sers water table water quality (northwest Tunisia) following the inputs used for agricultural activities in the region. Water samples were extracted from 40 wells to analyze the main physicochemical parameter indicators of the groundwater quality. The results obtained show that these waters have two major facies: Na-Cl and Ca-Mg-SO4. The nitrate contents are relatively high suggesting that the agricultural activities are probably the most important anthropogenic source of water contamination. The results of the Standardized Principal Component Analysis (SPCA) confirm the geochemical methods and results and provide further information about the water quality of the Sers El Kef aquifer. In addition, the pollution degree differs from one site to another depending on the spreading rate of nitrogen fertilizers and the distance from the pollution source. 相似文献
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对以再生水为补给水源的通惠河进行水质监测,采用模糊综合评价的方法总体评价了通惠河的水质状况,综合评价结果表明,高碑店污水处理厂处理排放人河道的水质达到Ⅱ类水平,对通惠河的污染起到了一定的缓解作用。引入多元统计分析的方法:(1)空间聚类模型将通惠河水质类型分为两类,并具体分析了两种类型的水质18个参数的差别。分析发现第1类水体的主要污染物为硝态氮、亚硝态氮引起的氮污染、磷污染等工业污染,而第2类水体的污染主要以生活污水带来的有机污染为主。(2)运用因子分析解析通惠河的污染来源——主要来源于点源排放的污水产生的氨氮、硝态氮和有机污染。为保持再生水水质,需要对水质差的污染区设立重点监测点并控制偷排现象。 相似文献
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Izabela A. Talalaj Pawel Biedka 《Environmental science and pollution research international》2016,23(24):24601-24613
The purpose of the paper is to assess the groundwater quality near the landfill sites using landfill water pollution index (LWPI). In order to investigate the scale of groundwater contamination, three landfills (E, H and S) in different stages of their operation were taken into analysis. Samples of groundwater in the vicinity of studied landfills were collected four times each year in the period from 2004 to 2014. A total of over 300 groundwater samples were analysed for pH, EC, PAH, TOC, Cr, Hg, Zn, Pb, Cd, Cu, as required by the UE legal acts for landfill monitoring system. The calculated values of the LWPI allowed the quantification of the overall water quality near the landfill sites. The obtained results indicated that the most negative impact on groundwater quality is observed near the old Landfill H. Improper location of piezometer at the Landfill S favoured infiltration of run-off from road pavement into the soil-water environment. Deep deposition of the groundwater level at Landfill S area reduced the landfill impact on the water quality. Conducted analyses revealed that the LWPI can be used for evaluation of water pollution near a landfill, for assessment of the variability of water pollution with time and for comparison of water quality from different piezometers, landfills or time periods. The applied WQI (Water Quality Index) can also be an important information tool for landfill policy makers and the public about the groundwater pollution threat from landfill. 相似文献
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Assessment and rationalization of water quality monitoring network: a multivariate statistical approach to the Kabbini River (India) 总被引:1,自引:0,他引:1
Musthafa Odayooth Mavukkandy Subhankar Karmakar P. S. Harikumar 《Environmental science and pollution research international》2014,21(17):10045-10066
The establishment of an efficient surface water quality monitoring (WQM) network is a critical component in the assessment, restoration and protection of river water quality. A periodic evaluation of monitoring network is mandatory to ensure effective data collection and possible redesigning of existing network in a river catchment. In this study, the efficacy and appropriateness of existing water quality monitoring network in the Kabbini River basin of Kerala, India is presented. Significant multivariate statistical techniques like principal component analysis (PCA) and principal factor analysis (PFA) have been employed to evaluate the efficiency of the surface water quality monitoring network with monitoring stations as the evaluated variables for the interpretation of complex data matrix of the river basin. The main objective is to identify significant monitoring stations that must essentially be included in assessing annual and seasonal variations of river water quality. Moreover, the significance of seasonal redesign of the monitoring network was also investigated to capture valuable information on water quality from the network. Results identified few monitoring stations as insignificant in explaining the annual variance of the dataset. Moreover, the seasonal redesign of the monitoring network through a multivariate statistical framework was found to capture valuable information from the system, thus making the network more efficient. Cluster analysis (CA) classified the sampling sites into different groups based on similarity in water quality characteristics. The PCA/PFA identified significant latent factors standing for different pollution sources such as organic pollution, industrial pollution, diffuse pollution and faecal contamination. Thus, the present study illustrates that various multivariate statistical techniques can be effectively employed in sustainable management of water resources. Highlights ? The effectiveness of existing river water quality monitoring network is assessed ? Significance of seasonal redesign of the monitoring network is demonstrated ? Rationalization of water quality parameters is performed in a statistical framework 相似文献