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浅谈上海市郊区集约化供水 总被引:1,自引:0,他引:1
该文分析了上海市郊区供水水质的影响因素,认为郊区小型水厂已经不能满足郊区居民对饮用水水质的要求。并结合上海宝山供水管理所的集约化供水工作,阐明郊区集约化供水是城市发展与供水基础设施建设的必然趋势。 相似文献
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城市供水,作为城市居民饮用水的主要来源,其状况已受到社会各界的普遍关注。当前,城市供水的战略重点,从增加水量转向改善水质。目前,我国大多数的城市供水企业把提高水质的大量工作用于制水厂的净化处理工艺上,往往忽略了供水管网产生的水质污染问题上。因而产生了供水企业出厂水严格按照国家标准执行,而管网水却有不同程度污染的现象,出现浑浊、红水、铁锈、红线虫等,使供水单位声誉受到影响。 相似文献
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一、概述 需水量的预测是城市供水规划中的重点,也是难点,尤其是近年来随着水资源短缺日益严重,城市居民特别是北方城市居民用水日渐紧张,如何准确、有效、切合实际地对城市需水量进行科学预测已经成为决定城市给水规划质量高低的关键所在.本文通过分析国内外大城市的用水情况,结合天津市本身的发展水平和用水特点,对天津市2010年的城市需水量进行了预测. 相似文献
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对城市分质供水的探讨 总被引:1,自引:0,他引:1
由于水源污染、饮用水水质欠佳、水处理工艺落后等等,作者认为对城市实行分质供水是解决这些问题的一种有效方法。文中介绍我国城市供水现状、分质供水的可行性、供水模式及其实施。 相似文献
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Patrick Trent Greiner 《Sociology Compass》2020,14(5)
One of the most pressing challenges faced by the global community in the 21st century is the need to extend potable water access to more than 2 billion people across the planet. Debates concerning how such a project should be undertaken have centered on whether or not water utility systems would be more effectively managed and extended under private ownership than they might be under public ownership models. In this article I explore this issue, providing an overview of recent research concerning the ways in which community water system ownership regimes succeed, and fail, in their attempts to provide access to readily available potable water for as much of the population as is possible. In the course of doing so I provide a discussion of the form that debates over privatization of water resources have taken, as well as how the act of privatization has been found to impact access to water systems and the quality of the service they provide. Ultimately, I explain that, while creative solutions to the water access crisis are clearly necessary, privatization appears to be an inadequate and often counterproductive means of addressing the issue. 相似文献
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一、海水淡化的产业优势及前景分析 海洋占地球表面积的71%,而海水占地球总储水量的比例高达97.2%,资源丰富,开发前景极为广阔,开发海洋、发展海洋经济已经成为解决当今世界各国面临的人口、资源、环境等重大问题的一条重要出路.这不仅是因为海洋中蕴含着丰富的矿产资源和生物资源,更因为海水是取之不尽的水资源宝库.解决缺水问题的方法不只一种,而海水利用应是其中一条非常有效且极具发展前景的解决途径.尤其是,海水的利用意味着陆地淡水资源总量的增加,并且随着技术的进步和产业的规模化,海水淡化产业的市场竞争力正在迅速提高,正在显示出独特的优势和良好的前景.根据天津市水资源严重匮乏的现实及其区位特点,大力发展海水淡化产业,既是解除缺水困扰的重要途径,也是一个蕴涵着巨大潜力的经济增长点. 相似文献
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水是生命之源,水是经济社会发展不可缺少的战略物资,水资源的可持续利用,支撑着经济社会的可持续发展.随着天津市经济社会的发展,水资源问题日趋突出.能否实现水资源可持续利用的目标,主要取决于人类生产、生活行为和用水方式的选择,因此,强化水资源管理是关键环节. 相似文献
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Ahmed Veriava 《Social Dynamics》2020,46(2):323-347
ABSTRACT This article takes up the story of a numerical indicator of system water losses called Non-Revenue Water (NRW), which is becoming an important measure for benchmarking South African Water Service Authorities (WSAs). The aim of this paper is, in the first place, to document the adoption of NRW as a Performance Indicator (PI), showing how it reflects a shift in the domestic regulatory framework in South Africa and the assumed priorities of water managers in line with the dominant governmental rationality in the sector. However, in drawing this discussion towards the theme of commodification I also show that the NRW audit enables a new way of seeing and speaking about “public water,” while the story of its uptake tells us a something about the development of contemporary governmental norms, and the forms of the resistance that shape it. On the one hand then, the article links the enthusiasm for NRW auditing in South Africa to a wider movement in the development and usage of audits and indicators as technologies of government at a distance. On the other hand, and stepping to a higher level of abstraction, I argue that the uptake of NRW must be read in relation to a contested set of processes marked by struggles over the commodification of water, and which sometimes turns up in the numbers. 相似文献
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中国水资源总量列世界第6位,但由于人口众多,人均年淡水量只有2600立方米,相当于世界人均淡水量的1/3~1/4,只能排到世界的109位,被列为世界13个贫水国 相似文献
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联合国把2005年~2015年定义为“生命之水国际行动10年”。2007年中国发布了第一部《节水型社会建设规划》,在这个大背景下,节水成为热点话题。笔者试图从2009年水价调整所引发的社会热议分析公众反方意见的成因,思考今后水价和水业改革的方向,以破解节水难题。 相似文献
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C Bugle S Andrew J Heath 《Journal of psychosocial nursing and mental health services》1992,30(11):31-34
1. It has been estimated that between 3% and 6% of patients in psychiatric treatment settings are affected by water intoxication. Water intoxication with consequent hyponatremia can result in disturbing clinical conditions. 2. Early detection is an important factor because of the insidious nature and rapid development of this syndrome. 3. A risk analysis for the early detection of this serious condition has been developed. It is easily administered and effective in categorizing a patient's level of risk. 相似文献
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