共查询到19条相似文献,搜索用时 328 毫秒
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以闽江下游福州城区段为研究区间,分析了闽江下游福州段的水环境质量现状,采用二维水动力-水质耦合模型研究了枯水期城市排污口布局和排污强度规划对水环境质量的影响。研究结果表明,感潮河段排污存在明显的污染物上溯现象,在东南区水厂至马尾水厂备用水源地之间形成高浓度污染团,洋里和连坂排污口对东南区水厂水源地水质影响最为显著,高潮时刻的高锰酸盐指数增量将达1.0mg/L,氨氮增量将达约0.15mg/L,叠加本底值后水质已接近Ⅲ类标准限值。建议逐步将取水口向城市上游淮安段转移,更换取消东南区水厂的取水口。 相似文献
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西宁市第一、三水厂位于南川,是最早的城市供水水源地。以后虽有第四、五水厂建成投产,供水量相对有所下降,但仍具有重要供水意义。南川地区地下水变化观测已逾21年,用观测资料探讨潜水变化趋势,为今后合理开采具有一定的实用价值。 相似文献
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以淮南市平山头水厂水源4种邻苯二甲酸酯类(PAEs):邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸丁基苄基酯(BBP)、邻苯二甲酸二丁酯(DBP)为研究对象,研究了水源地水中PAEs的污染情况。研究结果表明:DMP、DEP、BBP、DBP的检出率分别为50%、83.3%、83.3%、100%,DBP的达标率为100%;DMP、DEP、BBP、DBP对∑4PAEs污染的贡献率依次为:5.2%、3.7%、20.1%、71.1%,说明平山头水厂水源地水中PAEs污染主要以DBP为主。水源地各采样点∑4PAEs的含量范围0.632~1.623μg/L,其采样断面平均浓度顺序为:上游〉中游〉下游。 相似文献
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水是生命之源,饮水安全直接关系人民生命和身体健康,是人与社会经济协调发展的根本保障。江西省历来重视饮用水水源地环境保护工作,在饮用水水源地保护区划定、水质检测、规范化建设和水源地环境状况调查评估等方面开展了一系列工作。本研究对照国家和江西省有关法律法规和技术要求,总结分析2020年之前江西省饮用水水源地保护开展的工作,分析面临的挑战和可采取的对策,提出江西省饮用水水源保护工作应主要从应急备用水源建设、风险防控能力建设、农村水源环境治理和长效管理机制建设等方面开展水源地保护工作。 相似文献
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Lawrence R. Klar Jr. Aldo Ghirin 《Journal of the American Water Resources Association》1983,19(3):477-481
The purpose of this study was to identify attitudes toward the recreational use of drinking water reservoirs in Massachusetts among municipal water supply managers in the state. Compared to the findings of recent studies assessing the attitudes of the general public, water officials were found to advocate highly restrictive views. No officials said that recreation was an insignificant source of water supply pollution; however, opinions were not found to be related to respondents' exposure to the literature on the topic. The majority were not, in fact, familiar with the literature assessing the impact of recreation on water supply reservoirs. 相似文献
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以地表水为水源的自来水厂,原水藻类的去处是个极其复杂的课题。某水厂通过对不同除藻防藻技术的实际应用及效果比较,最终形成了生物(鲢鱼)控藻+活性炭吸附+强化常规工艺除藻的联合除藻措施,收到了较好的除藻效果。 相似文献
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对饮用水中有机污染物的控制 总被引:2,自引:0,他引:2
以保护饮用水的水质为出发点,控制饮用水中有机污染物为目的,本文介绍了有机污染物对饮用水水质的影响,着重从治理污染源和加强饮用水的深度处理等方面讨论了对饮用水中有机污染物的控制。 相似文献
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本文在对湖北省饮用水源保护的现状和法律调控的不足进行分析的基础上,提出完善湖北省饮用水源保护法律调控的必要性;分析了完善湖北省饮用水潭保护法律调控应遵循的指导思想和基本原则,并创新相应的法律制度,对湖北省饮用水源法制建设进行了探索。 相似文献
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William H. Bruvold 《Journal of the American Water Resources Association》1992,28(4):775-782
ABSTRACT: Individuals naturally engage in sensory evaluation of water quality during daily consumption. Efforts to ensure that all consumers receive high quality water must attend to sensory evaluation; otherwise individuals can obtain repeated evidence of compromised quality that reduces confidence in public purveyors and regulating agencies. Sensory quality is currently regulated by the United States Environmental Protection Agency (USEPA) by promulgation of secondary maximum contaminant levels (SMCLs) governing taste and odor in drinking water. Efforts to establish new SMCLs for identified organic contaminants has been thwarted by a lack of research data even though standardized methods for sensory evaluation presently exist. The present paper recommends a broad based national research program designed to produce odor detection thresholds, flavor detection thresholds, flavor acceptability functions, flavor recognition thresholds, and flavor intensity functions for each current contaminant of concern which will provide a substantial basis for the desired SMCLs, and offer an unprecedented comparative evaluation of currently standardized sensory evaluation procedures. 相似文献