共查询到17条相似文献,搜索用时 369 毫秒
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素有“千岛”之称的浙江省舟山市 ,已被国家科技部确定为全国最大的日产 40 0 0 m3海水淡化示范工程建设基地 ,其一期工程 -日产 1 0 0 0 m3淡水反渗透海水淡化工程 ,日前正在舟山嵊泗县动工兴建。国家科技部在舟山建设日产 40 0 0 m3海水淡化示范工程基地 ,是在成功开发建设舟山日产 5 0 0 m3淡水反渗透海水淡化工程的基础上实施 ,将采用我国自己的反渗透海水淡化技术和自行研制的反渗透海水淡化装置。据了解 ,日产 40 0 0 m3海水淡化示范工程基地建设 ,分三期实施。正在建设中的一期工程 ,是国家科技部科技攻关项目 ,由国家海洋局杭州水处… 相似文献
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由国家海洋局杭州水处理中心承担的国家重点科技攻关计划专题“日产千吨级反渗透海水淡化系统及工程技术开发 ( 96- A1 3- 0 1 - 0 7)”、“新型高脱盐反渗透复合膜关键技术 ( 96- A1 3- 0 1 - 0 1 )”于 2 0 0 1年 2月 2 7日在山东省长岛县由山东省科技厅、国家海洋局主持通过了专家鉴定、验收。这两专题的完成标志着我国具有自主知识产权的反渗透海水淡化专有技术及产业、高性能反渗透复合膜组件制作技术及产业的形成。“日产千吨级反渗透海水淡化系统及工程技术开发”是继 1 997年“50 0吨 /天反渗透海水淡化示范工程”后我国首次自行设… 相似文献
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火力发电厂反渗透法海水淡化系统设计研究 总被引:1,自引:0,他引:1
阐述了火电厂独有的有利于海水淡化的各种因素,分析了常规反渗透海水淡化的设计条件,并对火电厂反渗透海水淡化系统设计进行了研究.火电厂建反渗透海水淡化装置,可大大降低取水及浓水排放系统的投资,并可减少反渗透海水淡化膜元件数量,对生态环境的影响也小,可以优先发展. 相似文献
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随着我国水资源的日益匮乏,海水淡化技术不断应用于工业中。华能威海电厂三期海水淡化系统设备为笔者所在公司提供,海水作为该厂锅炉补给水水源,采用了超滤(UF)-海水反渗透(SWRO)-一级反渗透-二级反渗透-电去离子技术(EDI)全膜法制备。其中能量回收作为海水淡化系统的重要部分,本文将介绍几种常用的能量回收装置,并详细介绍膜法海水淡化系统在该厂中的应用。 相似文献
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海水反渗透淡化技术的分析与探讨 总被引:1,自引:0,他引:1
反渗透海水淡化技术是一种高效、节能、先进的液体分离技术.论述了目前国内外海水反渗透淡化技术的应用现状,着重介绍了反渗透膜材料及特点、膜污染及清洗、典型的海水反渗透淡化流程,探讨了反渗透海水淡化技术目前存在的问题及未来发展趋势. 相似文献
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Reverse osmosis is a very energy‐efficient approach for seawater desalination. Since it requires only electrical energy, a combination of reverse osmosis and photovoltaic (PV) plants seems to be a promising solution. Therefore, a PV‐based reverse osmosis plant for seawater desalination for a location in Saudi Arabia is designed and modeled. On this basis, different options of a PV‐powered seawater desalination plant are investigated and conclusions for the construction of such plants are derived. 相似文献
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该文对常规膜法海水淡化系统的系统功能、设备出力、蓄水能力、设备选型、运行管理等方面提出了优化调整意见,使之在安全运行的前提下,适应可再生能源电力波动的特点,如此不但能解决可再生能源发电量不稳定、发电量与用电负荷不匹配等问题,大幅提高可再生能源发电设备的利用小时数,还能解决我国淡水资源紧缺问题,创造利用可再生能源和海水资源的新循环经济模式。 相似文献
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This paper is limited primarily to reverse osmosis which is the dominating membrane process in commercial plants. Desalination of brackish water and seawater with reverse osmosis, with special emphasis on costs and energy consumption, is the primary subject discussed in the paper. Some aspects of and development trends in industrial and domestic applications of membrane processes are also taken up, particularly with regard to by-product recovery and water reuse in connection with advanced wastewater treatment.The first RO plant to be brought into operation in Riyadh, Saudi Arabia, is located at Salbukh. The investment and total operation costs for this plant have been calculated in the paper. The water cost is at least twice as high as in a continental U.S. location. The main reason for this is the very high cost of civil and local works in Saudi Arabia. A similar calculation has been made for RO seawater desalination.Increased energy costs during the last decade have directed research and development work for all desalination methods towards reducing energy consumption. It is shown in the paper that energy recovery in connection with RO seawater desalination is particularly feasible. Different methods for energy recovery have been investigated and reported, the preferred methods depending on the size of the RO plant. A large underground RO plant for energy recovery, based on utilization of the static pressure instead of high pressure pumps, has also been studied.Another possible energy-saving, but also water quality improving method has been proposed, viz . a combined MSF-RO dual purpose plant. Excess power for reverse osmosis seems to be more and more available in Saudi Arabia due to the high power/water ratio in MSF dual purpose plants compared to the real demand for power and water. 相似文献
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采用文献[8]提出的代表性费用概念,在相同淡水产量(8.95m^3/d)条件下,讨论了反渗透一纳滤海水淡化工艺产水成本,并与传统一级反渗透海水淡化工艺的产水成本进行了比较,结果表明:新工艺(回收率60%)的总设备直接投资费分别比回收率为20%和40%时的传统工艺下降20.06%和6.27%.其中,预处理设备投资费分别下降43.41%和19%;操作费用中的能源费分别下降13.33%和7.14%. 相似文献
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反渗透海水淡化中差动式能量回收装置的研究 总被引:4,自引:0,他引:4
研究了一种应用于中小型反渗透海水淡化装置的新型差动式能量回收装置.结果表明,使用本能量回收装置的日产10m3反渗透海水淡化装置的单位淡水能耗只有3.6kWh/m^3,不考虑高压泵及电机自身损耗的影响时,单位淡水能耗为2.3~2.7kWh/m^3,装置能耗显著降低,能量回收效率达到97%.此能量回收装置不需要其它附加增压设备,并且能有效改进由于阀门开闭导致系统压力波动而造成的淡水产量不稳定的问题,保护了反渗透膜、高压泵等系统内的重要设备. 相似文献