共查询到18条相似文献,搜索用时 125 毫秒
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污水再生利用的健康风险评价方法 总被引:21,自引:0,他引:21
随着经济发展和人口增加,中国水资源短缺问题日益严重,水资源再生利用成为解决中国水危机的重要途径。再生水对人体健康的风险成为人们关注的焦点。应用风险评价技术评估再生水的健康风险目前再生水回用迫切需要解决的问题,作者论述了再生水风险评价的基本理论和评价方法及存在的问题。 相似文献
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水资源的持续开发和利用 总被引:15,自引:0,他引:15
随着人品的增长和经济的发展,越来越多的国家正面临着严重的水危机、水质的恶化和水生态系统的破坏使许多国家的淡水供应出现危机,所以水资源必须得到保护和合理的开发。本文探讨了全球水资源的短缺及其原因,并提出了解决水资源短缺的途径。 相似文献
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我国城镇可持续发展的水资源问题与对策 总被引:8,自引:1,他引:7
本文简述了甸水资源的现状,指出水短缺和水污染是制约我国城镇可持续发展的两个主要问题,并探讨了解决问题的对策,强调工农业及城市用水的节水,实施污水间和海水利用等方法开发新水源,进行科学的水资源管理。 相似文献
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《环境污染与防治》2016,(6)
中国水资源总量丰富,但人均占有量低及水资源时空分配不均等问题,使水资源的可持续利用成为一个亟待解决的问题。山西省自身所处的地理位置使水资源短缺一直是当地突出问题,同时山西省作为煤炭能源大省又具有其独特的水资源短缺冲突,故以山西省为例对水资源的承载力进行研究。选取了山西省的10个地级市,从需水量和供水量两个方面对水资源的现状及未来进行分析及预测。而水资源承载力的评价摒弃传统较单一、片面的方法,在原先的研究基础上建立了一个新的水资源承载力评价体系,从水环境、社会、经济及生态环境4个层面对水资源的承载力进行综合、全面的评价。运用STELLA软件模拟2020年山西省10个地级市水资源供需平衡状况,结果表明,山西省水资源的供给无法满足需求量,并且在较长的一段时间将一直处于这个状况。 相似文献
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水污染现状及其治理措施 总被引:1,自引:0,他引:1
水资源是人类社会赖以生存的前提,可是如今,地球生态遭受破坏,水体污染严重性尤为突出,因此,介绍了中国水资源的现状及对水体污染的治理,还介绍了国外对水污染的治理措施和治理经验,重点讲述了中国治理污染水体的对策措施。 相似文献
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随着中国经济的迅速发展,水资源污染问题加剧.结合现阶段中国水资源污染状况的突出表现,分析了现在中国的水污染防治法中的法律责任存在的缺陷,从侵权救济、诉讼主体范围、政府方面责任、处罚责任等方面对中国水污染防治法的完善提出了相应的措施. 相似文献
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神东矿井污水的开发与利用 总被引:1,自引:0,他引:1
神东矿区地处荒漠地区,水资源非常缺乏,煤炭的开发不可避免地破坏了地下水资源。因此,水资源及其利用成为制约矿区建设的关键因素之一。针对这种状况,在采用先进技术对生活污水进行处理的同时,结合矿井污水和采空区及其充填物的特点,重点开发了矿井污水采空区过滤净化技术,为矿井污水的净化与利用开辟了一条新途径。 相似文献
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Meng Xiangmei Wu Lifeng 《Environmental science and pollution research international》2021,28(23):29253-29264
Environmental Science and Pollution Research - Considering the shortage of per capita water resources in China, the paper established a fractional order accumulated grey prediction model (FGM(1,1))... 相似文献
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Since China has the largest population in the world, the available water resources per capita in China are very limited. With
the rapid economic development that is currently occurring, the shortage of water resources at the national level has become
extremely critical. How to solve the problems due to water scarcity and water pollution has received increasing attention
from the Chinese government and various communities. In order to provide a sustainable development environment for 1.6 billion
people in the future, the whole country has started to reform urban water resources management systems in terms of related
policies, regulations, methodologies, and technologies focusing on improving the efficiency and effectiveness in water use.
Urban water quota management has now become a core strategy in developing a water resources governance model for water demand
management aiming at establishing a water-saving society. This paper introduces the main stages and the processes of implementing
water quota management in China, analyzes the basic principles, and expounds the elements, information foundation, core module
and operational model of the urban water quota management system. It has been demonstrated that urban water quota management
has made some remarkable contribution not only in transforming the pattern of water mode and strengthening water management
enforcement but also in integrating various management methods in saving water and preventing pollution. 相似文献
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PAH desorption from sediments with different contents of organic carbon from wastewater receiving rivers 总被引:1,自引:0,他引:1
Weixiao Qi Huijuan Liu Jiuhui Qu Huimin Ren Wei Xu 《Environmental science and pollution research international》2011,18(3):346-354
Background and aim
Many rivers have to receive treated or untreated wastewater as the main water sources in the world, especially in the countries facing with water shortage. For instance, the Haihe and Huaihe River Basin, which are among areas facing crises for water resources in China, receive 33,400 million tons of wastewater per year. As the sediment has large capacity for sorbing hydrophobic organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), it can act as a natural repository for the contaminants. This means pollutants can release into water phase again under some conditions, such as resuspension, sediment dredging, etc. The objective of this research was to study the trends of PAH release from sediments in rivers receiving much wastewater, such as Yongding New River (YD), Northsewer (NS), and Southsewer (SS) from Haihe River Basin. These rivers received most of the wastewater from Tianjin, China and merge into Bohai Bay finally. 相似文献15.
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美国加州再生水利用经验剖析及对我国的启示 总被引:7,自引:1,他引:6
开发利用再生水具有巨大的社会经济价值,是实现可持续发展的重要环节.在美国加州,再生水利用已经成为其水资源的重要组成部分,具有详细的规划、系统地法律法规和完备的管理体系,走在了世界的前列.总结分析了加州再生水利用相关的法律法规与灌溉终端用户管理的一些经验,并对2个典型案例进行了剖析.科学的再生水利用规划、严格的源水水质控... 相似文献
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本文从给水及水污染防治科学与技术两方面对水科技的发展及其在人类社会发展中的作用进行了讨论。水科技在人类社会的现代化进程中起到了重要的支撑,保障和推动作用,解决人类面前日益严峻的水污染与水资源危机问题,大力发展水科技是一条根本途径。 相似文献