自动投药系统的设计与实践

介绍自动投药系统的设计思想,阐述了药液浓度控制在水厂自动投药系统中的重要性和必要性,最后介绍了它在南方某水厂的运用情况。     

大型泵房设计与运行的回顾及探讨

回顾厦门高殿水厂二级泵房的设计,总结与探讨机泵投运后的经验教训。     

十堰二水厂的生产工艺与节能技术

介绍十堰二水厂在设计中本着节能、经济、先进的原则,选取制水、输配电等工艺方案及主要设备,从而为节约能耗、提高效率打下坚实的基础。     

上海杨树浦水厂二号泵房出厂管改建施工技术措施

介绍上海杨树浦水厂二号泵房出厂管改建工程中,为不停水施工而敷设的 DN1400临时水管的支墩设计、支墩桩脚设置及对地下电缆与煤气管道的保护措施等。     

水厂污泥

介绍水厂污泥的种类与性质、国内外水厂污泥处理的进展概况、水处理工艺改进与污泥减容,以及污泥浓缩。     

水厂安全运行的建议及探索

水厂是居民生活用水的供应者,是城市重要的基础设施,因此水厂的安全运行对人民身体健康的维护及城市建设具有重大意义。本文结合当前水厂的运行现状,提出安全运行的建议,同时指出水厂运行过程中安全性受到威胁的主要原因及重要环节。     

上海市率先实现农村自来水化

介绍上海农村实现自来水化概况、筹措乡镇水厂建设资金、合理选用净水工艺及构筑物、培训农村供水队伍、加强管理和创建花园式水厂。     

金川河治理浅议

分析上元门水厂污染源——金川河水环境现状和上元门水厂原水水质现状,并提出金川河治理的建议。     

铁西水厂二期管网工程对铁西加压站运行状况影响的讨论

介绍邯郸市铁西加压站、铁西水厂的运行状况、邯郸市供水现状等,并对铁西水厂二期管网工程投入运行后对铁西加压站运行状况有何影响进行分析,提出铁西加压站改造方案。     

香港给水现状

介绍香港的供水系统、水源和香港最大的沙田水厂。     

“Water Is Life”—Farmer Rationales and Water Saving in Khorezm,Uzbekistan: A Lifeworld Analysis

Khorezm Province is located in the Amu Darya lowlands of Uzbekistan, where unsustainable use of irrigation water has led to the Aral Sea crisis. This study deals with the question of how farmers in Khorezm perceive water and its management and how this facilitates or prevents water conservation, or “water saving,” in irrigated agriculture. To answer this from the perspective of the water users, we apply Schütz's lifeworld concept to the study of natural‐resource management, thereby reconstructing the water lifeworld of Khorezmian farmers. We present the spatial and temporal boundaries of the water lifeworld; the different types of water, people, and land that farmers distinguish; and the institutions water management is based on. The analysis shows that religious values and the risk of being fined for water wasting facilitate water saving. However, the following barriers to water saving dominate farmer practices: (1) storage of saved water is not possible, (2) using much water creates social capital, (3) perceived water needs exceed the geographical realities, (4) the term “water saving” is not in use, and (5) farmers believe that water management is the state's responsibility. We conclude that water saving should be facilitated by environmental education, a strengthening of the water‐inspection department Uzsuvnazorat, and the creation of decentralized storage options.     

浅谈上海市郊区集约化供水

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。     

Contesting Water Rights: Collective Ownership and Struggles against Privatization

The post‐1980s have seen increasing struggles over rights to water. Water rights have involved intense protests and campaigns against privatization of water including bottling of water and advocacy for citizens control of water. We review scholarly work to focus on four main aspects: the complexities intertwining globalization processes, the state, and water rights; collective ownership of water resources; peoples’ participating in managing and using water; and the campaigns against privatization which have emerged in both the developing and developed world in different ways. The conclusion calls for adopting a social movement lens to examine the struggles for water rights by providing some lead research questions around the macro and micro level theoretical approaches.     

上海城市用水的可持续发展对策

介绍上海城市水资源概况、2010年需水量发展预测、新水源开发计划及加强用水管理     

Like Oil and Water in the American West: Water Market Access amid Unconventional Oil Production in Colorado

Characterized as a “wicked” problem, water shortage in the American West will soon become a reality—due to increasing population, climate change, and decreased flows. Concurrently, water‐centered technologies such as hydraulic fracturing and directional drilling have facilitated the rapid and widespread growth of unconventional oil and gas (UOG) production in the United States. Water markets are increasingly touted as the best, most efficient, and fairest mechanisms for allocating vital and scarce resources. Yet this contention is largely unexplored at the food‐energy‐water nexus, particularly from an environmental justice perspective—where equitable water access for all users is a central concern. We utilize a case study in Colorado's South Platte basin based on 41 in‐depth interviews to show: (1) distortions created in regional water markets as wealthy UOG operators participate in them and (2) ways in which access to water markets becomes blocked for smaller, newer, or water‐poor water users. We also highlight how UOG producers’ presence may inhibit the formation of alternative systems for water exchange. Thus, the participation of UOG operators in Colorado's water markets appears to drive environmental injustice and increased inequity at the food‐energy‐water nexus, rather than facilitating fair or efficient access to water for all users.     

湖州市改善城镇供水水质初探

介绍浙江省湖州市水源水质现状和改善其城镇供水水质的途径,发展区域供水和加强水源保护等。     

2006 PRESIDENTIAL ADDRESS WATER MARKETS IN THE WEST: PRICES, TRADING, AND CONTRACTUAL FORMS

Rising urban and environmental demand for water has created growing pressure to reallocate water from traditional agricultural uses. The evolution of water markets has been more complicated than those for other resources. In this paper, we first explain these differences by examining water rights and regulatory issues. Second, we place our research in the context of the economics literature on water marketing. Third, we present new, comprehensive data on prices and the extent, nature, and timing of water transfers across 12 western states from 1987 to 2005. We find that prices are higher for agriculture-to-urban trades versus within-agriculture trades, in part, reflecting the differences in marginal values between the two uses. Prices for urban use are also growing relative to agricultural use. Markets are responding in that the number of agriculture-to-urban transactions is rising, whereas the number of agriculture-to-agriculture transfers is not. Further, there is a shift from using short-term leases to using multiyear leases of water and permanent sales of water rights. This pattern underscores the need to consider the amounts of water obligated over time rather than examining only annual flows in assessing the quantities of water traded as is the common practice in the literature. Considering water obligated over time, termed committed water, we find significantly more is transferred and the direction of trading is different than if the focus is on annual flows. Finally, the data reveal considerable variation in water trading across the states. ( JEL Q2, N5, L5, K3)     

An Effective,Feasible, And Cost-Efficient Water Strategy For 2013 To Meet The Projected Water Need Of China In Future

Water resources carrying capacity is a foundational topic in water resources security strategic study and the foundational measurement of water resources security. Water resources constrain the scale and quality of social and economic development in many water shortage cities and regions. Thus, the management via dynamic water resources prediction is a key for the overall city strategic planning. In this study, an integrated dynamic model of water consumption was developed using system dynamics (SD) and based on water resources carrying capacity (WRCC) theory.     

我国城市供水系统安全保障及应急体系建设的探讨

探讨有效提高城市处置水源和供水突发事件的能力，建立和健全城镇供水的日常安全保障机制和发生紧急情况时迅速有效的应对机制，建设一整套城镇供水安全保障与应急体系，规范和指导城市水源和供水突发事件的应急处置工作。     

Water sources of urban trees in the Los Angeles metropolitan area

In semi-arid cities, urban trees are often irrigated, but may also utilize natural water sources such as groundwater. Consequently, the sources of water for urban tree transpiration may be uncertain, complicating efforts to efficiently manage water resources. We used a novel approach based on stable isotopes to determine tree water sources in the Los Angeles basin, where we hypothesized that trees would rely on irrigation water in the soil rather than develop deep roots to tap into groundwater. We evaluated the oxygen (δ¹⁸O) and hydrogen (δD) isotope ratios of xylem water, irrigation water, soil water, and groundwater in a study of temporal patterns in water sources at two urban sites, and a study of spatial patterns at nine urban sites and one “natural” riparian forest. Contrary to our hypothesis, we found that despite frequent irrigation, some trees tap into groundwater, although in most species this was a small water source. Some trees appeared to be using very shallow soil water at <30 cm depth, suggesting that these mature urban trees were quite shallowly rooted. In the natural site, trees appeared to be using urban runoff in addition to shallow soil water. We were able to identify tree uptake of precipitation at only 3 sites. The results show that some irrigated trees utilize groundwater and do not rely solely on irrigation water, which may make them able to withstand drought and/or water conservation measures. However, some irrigated trees may develop very shallow root systems, which may make them more susceptible.