基于熵权的有机污染综合评价法在水质评价中的应用

针对有机污染综合评价法对水质评价指标采用等权重的处理方式存在的不足,基于温州市温瑞塘河16个监测站点的氨氮、溶解氧、五日生化需氧量、化学需氧量等能反映有机污染指标的监测数据,通过熵权法对每个指标赋予一定的权重,提出了基于熵权的有机污染综合评价法,计算了温瑞塘河的有机污染综合评价值,并与传统的有机污染综合评价法的计算结果进行了比较。结果表明,采用熵权法与有机污染综合评价法相结合,克服了有机污染等权重处理评价指标因子的缺陷,其与有机污染综合评价法所反映的污染特点具有一致性,评价结果能较好地反映流域水质有机污染的状况。

有机污染综合评价法在文山城区水质评价中的应用

介绍了有机污染综合评价值法的运用与选择，以此分析了文山县城区水质污染情况与主要污染源，并与单项水质参数评价法进行了比较，初步探讨综合评价法的运用范围。

大庆天然湿地水质评价

湿地评价研究已成为新世纪湿地科学前沿研究领域的热点问题。大庆市湖泊湿地面积广泛,具有极大的生态经济价值。近年来,随着经济的发展其湖泊湿地水质退化严重,所以急需适时对其水质进行合理、准确的评价。在经济发展高速增长的同时,水环境问题日渐突出,迫切需要相应理论及技术的支持。大庆市天然湿地的污染日益突出,为了加强大庆天然湿地资源的保护,该文运用内梅罗水质指数与有机物污染综合指数对其污染程度进行评价,为大庆天然湿地污染治理提供依据,对于经济、有效地防治水环境污染,具有重要的科学价值和现实意义。

喀斯特山区小流域枯水期水化学组成与水质评价——以坞泥河为例

为了研究坞泥河的水质污染程度,运用了有机污染综合评价指数法对坞泥河进行了水质评价。通过监测5个监测点,选用9个指标作为坞泥河的水质评价因子,采用有机物综合评价指数法进行研究。结果显示:研究流域内的水质为Ⅲ类水质标准,其中2号监测点的水质属于优于Ⅲ类,筑坝对水体中总磷及其它的水化学参数有一定的影响。

海宁市地表水水质污染特征分析

根据2008～2012年海宁市地面水水质指标的监测数据，采用单因子评价法、综合污染指数法、有机污染综合评价法和R型聚类分析法，对海宁地表水现状进行了评价。结果表明，海宁地表水的主要污染因子为氨氯、总磷，其中氨氮为首要污染因子；近年来，海宁地表水水质一直处于中度污染状态，其中2008～2009年水质略有好转，然而近3年来却一直小幅波动。各监测指标中，NH3-N和CODMn、CODCr与CODMn、TP与CODMn、CODCr和NH3-N呈现明显的相关性。

敦煌西湖湿地水质评价分析

敦煌西湖湿地是荒漠戈壁区重要的湿地保护区,水质监测对敦煌西湖湿地水资源的管理具有重要意义。本研究通过检测敦煌西湖湿地地表水水质主要指标,通过有机污染评价法与综合污染指数法对区域内主要地表水水质进行评价分析。结果表明:敦煌西湖湿地水体pH值整体偏高,表现为弱碱性,天桥墩水体pH值最高达9.29;小马迷兔、盐池、土豁落、盐池湾采集的水体样本高锰酸盐指数偏大。两种方法的评价结果基本相同,均显示为敦煌西湖湿地整体水质较好,仅盐池与小马迷兔有轻度污染,盐池湾水体两种评价结果稍有不同,有机污染评价结果显示为水质一般,综合污染指数法显示为水质较清洁。

Chemical Property Variation Trend Analysis and Quality Evaluation of Water in Wei River

[Objective] Water quality variation trend of Wei River was analyzed and the water quality evaluation was performed in this study. [Method] Stationing and water sampling were conducted along Wei River at three different sites during the 12 months from January to December of 2014, the water samples were pre-treated and analyzed on chemical pollution indexes with the national standard, water quality data of Wei River in the 12 months was processed with periodic time series method, Spearman rank correlation coefficient was adopted to test pollution changing trend, and water quality status of Wei water was evaluated with integrated index of organic pollution. [Result] NH3-N and TN of Wei River exceeded the standard＇s lim- its; [ Y~ [ 〉Wp=0.506, [ Yss~ [ 〉Wp=0.506 and [ Y＆=0~,, Diecqieo 〉Wp=0.506 indicated that the integrated index of organic pollution of Shawangdu section, S.huyuan section and Tongguan Diaoqiao section showed a significant downtrend, respetively; and the water quality of the three sections became better, and it was worth noting that it was necessary to strengthen the water quality control of Wei River from January to June, so as to ensure that the water quality of Wei River reached the standard all the time. [Cendasien] This research was of significance in improving water ecological environment in Weinan as well as rationally utilizing water resources and finally realizing permanent development. Key words Wei River; Water quality variation trend; Integrated index of organic pollution; Evaluation