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试论太原市实施污水回用的必要性 总被引:1,自引:0,他引:1
分析了太原市水资源短缺的状况及节约水资源的基本途径,提出了缓解太原市水资源紧张局面,节约新鲜水资源的一种方法——污水回用,阐述了污水资源化利用的可行性。 相似文献
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对不同含油废水的常用处理方法作了简单介绍,研究了中国石化山东炼油厂对含油污水的处理工艺,对反渗透后产生的浓水回用作了探讨,并提出了今后对含油废水处理技术的一些建议与展望. 相似文献
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《Urban Water Journal》2013,10(3):137-148
This simulation study, based on experimental and literature data, evaluates the influence of onsite greywater reuse on domestic wastewater quality and quantity. For this, three scenarios were studied: no reuse; reuse for toilet flushing; reuse for toilet flushing and garden irrigation. Light greywater reuse reduced the daily household wastewater flows by 25–40%. These reductions mainly occurred during the morning and evening peak wastewater generation. Although daily loads of all pollutants decreased, their concentrations in the discharged wastewater increased owing to exclusion of potable water from the wastewater and replacing it by treated light greywater. The proportional concentration increase of most pollutants was lower than the decrease in wastewater discharge, due to degradation during treatment. The highest concentration increase occurred during the morning peak, coinciding with the highest flow reduction. This study is a first step towards quantification of the effects of onsite greywater reuse on sewers and wastewater treatment plants. 相似文献
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城市污水回用深度处理方法及其研究进展 总被引:1,自引:3,他引:1
介绍了城市污水回用深度处理的概念,总结了几种常见的城市污水回用深度处理方法,对它们的原理和特点进行了简单概述,并阐述了近年来这些深度处理方法的研究进展,从而使城市污水作为新的资源得以循环利用,提高了城市资源的利用率。 相似文献
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结合国内外污水处理市场发展趋势,分析了天津地区开展中水回用工程建设的可行性,简要介绍了中水的概念及中水回用工艺等内容,针对天津地区中水发展现状进行了探讨,指出了存在的问题,以期提高人们的中水回用意识,促进中水事业的发展。 相似文献
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结合天津港南疆污水处理中心含油污水处理系统的现状,详细介绍了系统采用的工艺、处理效果以及设施的使用现状,分析了现有含油污水处理系统的缺陷,并对含油污水处理系统的改造完善工程技术路线进行了简介. 相似文献
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结合具体工程实例,对生态园区污水的特点进行了研究,分析了以生物转盘(RBC)为主的污水生物处理工艺,以及污泥在沼气池内进行常温厌氧消化的城市污水再生利用工程,得出了该处理设施出水水质已达到标准要求的结论,从而推广该污水处理工艺。 相似文献
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介绍了高殿水厂3号滤池的工程概况及HDPE滤砖的工艺,比较了原有陶瓷滤砖滤池和HDPE滤砖滤池,对改造前后的参数测定进行了详细探讨,分析了其经济效果,以推广该工艺改造技术。 相似文献
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结合目前水资源紧缺的现状,介绍了建筑小区污水处理的设计原则和工艺流程,并以某居住小区为例,进行了污水处理和中水工艺的方案设计,旨为今后居住小区中水系统的建设奠定基础。 相似文献
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Freshwater availability to meet the growing needs of humankind has raised serious concerns in the recent past. Two immediate responses to counter this challenge are efficient allocation of the scarce resources, and development and use of alternative sources of water. While ‘water markets’ are seen as a means to achieve efficient allocation of the scare resources, treated wastewater and low‐quality water are now considered as potential sources of water to supplement the freshwater supplies. However, the latter option, that is use of reclaimed water as an alternative, imposes concerns regarding its suitability to sustain development. This is because of various issues related to wastewater usage and application. At the same time, it is also true that a successful and well‐planned reuse scheme can help achieve sustainability as evidenced in some isolated cases around the world. In line with this, the current paper adopts a case‐study approach to demonstrate how a successful reuse scheme in Adelaide, South Australia, has contributed to the sustainable development of the region. The paper looks into the socio‐economic and environmental dimensions of sustainability and arrives at a conclusion that properly planned and managed reuse schemes backed with effective regulatory and policy measures can lead to sustainable development. 相似文献
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对建筑小区中水水源的选择、水量及水质等作了阐述,就中水系统的选择和组合作了简要的叙述,并对中水系统的发展意义与发展趋势进行了探讨,同时指出采用中水系统后,对社会和环境效益的深远影响是无法估量的。 相似文献
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通过对城镇住宅小区中水回用的调查分析研究,探索出中水回用作为一种新的节水方式应用于住宅小区的新途径,指出设立中水系统供应城市杂用水可缓解城市生活供水紧张,对于缺水城市而言,污水资源化有着特殊意义,从根本上改变了居民小区的用水排水方式。 相似文献
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《Urban Water Journal》2013,10(4):291-301
Urban wastewaters, including domestic wastewater, grey water and roof-collected rain water, are all potential sources of water, which can be reused in an effort to conserve limited water resources. Urban wastewaters may contain a range of pathogenic microorganisms, which are of concern for water reuse due to the potential for pathogen transmission from reuse applications. In particular, regardless of the source, grey water is shown to consistently contain bacteria of faecal origin. Most potentially harmful species occur at relatively low concentration such that only those with low infectious doses are likely to be of real concern. Example species include Campylobacter jejuni, shiga toxin producing Escherichia coli and Shigella spp. 相似文献
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In Europe, the last two decades witnessed growing water stress, both in terms of water scarcity and quality deterioration, which prompted many municipalities for a more efficient use of the water resources, including a more widespread acceptance of water reuse practices. Treatment technology encompasses a vast variety of options. Constructed wetlands are regarded as key elements in polishing conventionally treated wastewater for recreational and environmental applications. A survey was conducted to assess the performance of tertiary free water surface constructed wetlands in treating both key and emerging contaminant categories in the perspective of water reuse. A database was created with information concerning systems with emerging and free-floating macrophytes. The database includes results from both full- and pilot-scale systems, and considers a broad variety of operating conditions. This paper provides an overview of the treatment performances of the constructed wetlands in the database and discusses their significance in the optic of water reclamation and reuse practices. 相似文献