共查询到20条相似文献,搜索用时 78 毫秒
1.
2.
海水冲厕是解决沿海城市淡水资源短缺的有效途径 .论述了海水冲厕在香港的应用现状以及在青岛等内地城市的推广情况 ,并对其发展前景进行了探讨 相似文献
3.
4.
海水冲厕及后续污水处理的应用与研究进展 总被引:1,自引:0,他引:1
海水冲厕是解决沿海城市淡水资源紧缺的有效途径,其社会效益和经济效益都十分重大,具有广阔的推广前景。论述了海水冲厕在香港的应用现状和在青岛等其它内地沿海城市的推广应用情况,并对海水冲厕后续污水处理的研究进展情况进行了概述。最后总结了海水冲厕在国内推广应用困难的原因。 相似文献
5.
水是生命之源。水作为与粮食、能源同等重要的三大战略资源之一,在经济、社会发展和国家安全中具有极其重要的地位。上海虽然临江靠海,但淡水资源仍匮乏,是水质型缺水城市。要让每个人都认识节约水的重要性,从节约每一滴水做起,认真落实环保行动。针对淡水资源不足的情况,香港政府实行了海水冲厕免费措施,实践表明,采用海水冲厕是节约生活用水量最多且最有效的方法,值得上海借鉴。如果上海也推广使用海水或江河湖水冲厕,并实行免费或部分免费方案,则既可节省大量淡水,又可减少政府的财政支出和居民的冲厕水费,有利于民生,是一项利国利民的措施。 相似文献
6.
7.
采用SBR工艺处理模拟海水冲厕污水,研究了海水盐度、pH值、温度、氨氮负荷对模拟海水冲厕污水短程硝化的影响。结果表明,当城市生活污水中含有30%的海水时能够导致亚硝酸盐的积累从而实现短程硝化反应,亚硝酸盐的积累率可达94%,pH值和温度分别从6.5~7.5和25℃提高到8.3和28℃时,含30%海水的生活污水的亚硝酸盐积累率从65%提高到93%;原水中氨氮浓度越高则亚硝酸盐的积累量越大,在试验给定的条件下,进水氨氮浓度分别为31.1、55.43、98.48和135.07mg/L时,一个硝化周期结束时的亚硝态氮浓度分别为6、18、24和33.5mg/L。 相似文献
8.
现有沿海城市使用淡水冲厕,使得天旱少雨的北方沿海城市淡水资源严重短缺,借鉴香港利用海水冲厕的实践,在沿海城市利用海水冲厕缓解淡水资源的短缺是十分必要的。 相似文献
9.
10.
11.
12.
Hong Kong is one of the very few coastal cities in the world that use ‘dual water supply systems’. Dual water supply involves two distribution systems: a freshwater system for potable use and a seawater system for toilet flushing. This study looks into the feasibility, from an engineering cost point of view, of extending seawater supply into districts where potable water is still being used for toilet flushing, including South District of Hong Kong Island, Sai Kung, Northern New Territories and Northwest New Territories. Besides seawater, raw (untreated) freshwater and reclaimed water (treated effluent from local sewage treatment works) are also considered to be used for toilet flushing for these districts. Six cases are developed for comparison by using the lowest net present value of cost criterion. The result shows that using seawater for toilet flushing in these districts has the best engineering economy. 相似文献
13.
Nearly 1 million m2 of gross floor area is represented by the survey which identified four different building envelope designs. To enable judgements to be made on construction cost and time, a comparative study was carried out based on a 40-storey generic office building. 相似文献
14.
There is a long history of the use of inflatable dams (rubber dams) in Hong Kong. Three inflatable dams were constructed in the 1960s as an integral part of the Plover Cove water supply scheme which was the largest project in Hong Kong at that time. However, because most civil-engineering structures are constructed from steel, concrete, soil and rock, the use of rubber as a construction material is subject to much scepticism. The problems and counter-measures associated with the use of rubber are discussed, based upon the experience of several departments which have used the dams in Hong Kong, and in other parts of the world. 相似文献
15.
16.
17.
18.
浅析香港建筑综合体与城市交通空间的整合 总被引:11,自引:0,他引:11
从阐述香港城市空间特征入手,通过实例分析,归纳了香港建筑综合体与城市交通空间整合的思路和特点。通过两者的整合,一方面拓展了城市空间,促进了城市、建筑、交通的综合发展;另一方面还提供了舒适的室内步行与换乘空间,改善了城市的整体出行环境。香港的成功经验对改善国内交通空间环境,促进我国城市、建筑、交通设施的整体发展有重要的借鉴意义。 相似文献
19.
香港郊野公园的发展与管理 总被引:16,自引:0,他引:16
香港郊野公园的日常管理由管理科和护理科两个机构来完成。管理科的主要职责是策划郊野公园各项建设计划、管理建设及维修郊野公园内的各项设施;护理科的主要职责是为游客提供信息及服务、推广自然护理保育的知识。 相似文献
20.