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首页> 外文期刊>Desalination and water treatment >The role of SWRO Barcelona-Llobregat Plant in the water supply system of Barcelona Area
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The role of SWRO Barcelona-Llobregat Plant in the water supply system of Barcelona Area

机译：SWRO Barcelona-Llobregat工厂在巴塞罗那地区供水系统中的作用

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摘要

Barcelona-Llobregat Desalination Plant is actually the largest seawater desalination plant in Europe producing potable water from the seawater of the Mediterranean Sea. The plant is able to supply approximately the 20% of tap water of Barcelona Metropolitan area having a maximum capacity of 200,000 cubic meters per day. This project was developed by Aiguees Ter-Llobregat, public company of the Catalonian Government (Generalitat of Catalonian) to face the lack of water resources and to improve the water quality in Barcelona's south area. A Joint Venture of Degremont, Aiguees de Barcelona and Dragados-Drace built the plant during a severe drought period in a extremely tight delivery time of 24 months. The plant was inaugurated on July 2009 and from this date the same JV is operating it. Barcelona-Llobregat SWRO plant won the Global Water Awards 2010 as the Desalination Plant of the year. A pilot plant was operating for two years to help in design and for getting experience with Mediterranean seawater. The facilities are located in El Prat, an industrial area between Barcelona Harbour and Llobregat mouth, just close to one of the waste water treatment plants of Barcelona, Dep-urBaix. A deep intake located 2 km offshore feed the plant avoiding the Llobregat river impact, especially for heavy rain period, and the harbour leaks. Sea water is pumped for more than three and a half km, crossing the river through an underground pipe. A very strong pre-treat-ment protect reverse osmosis (RO) membranes: a set of 10 SeaDAF~?, high speed floatators, is the first step followed by 20 Mediazur~? gravity filters and 20 SeaClean~? pressurized dual media filters. The polishing is guaranteed by 18 cartridge filters of 5 microns. The silt density index_(15) of pretreated seawater is always below 3.0%/min, with an average of less than 2.5. Ten RO trains with a unitary production over 20,000 m~3/day are fed by individual HP pumps and the energy recovery is assured by a set of 23 PX220 per train. A partial second pass guarantees a boron concentration in treated water below 1.0mg/1 (two trains of 16,500m~3/day). Remineralization is made with CO_2 and upflow limestone filters with an innovative design. Potable water is pumped over 12 km to Fontsanta reservoirs to be blended with waters coming from two potable water plants, one with electrodialysis reversal treatment. Brine have an innovative treatment: it is blended with treated water from DepurBaix waste water treatment plant in a ratio lower than 1:1 and discharged through diffusers at 50 m depth to more than 3 km from intake. All effluents are treated before discharge and the plant has sludge treatment. The plant has increased the "green label" adding a wind generator and photovoltaic panels in the building roofs to minimize the electric internal consumption. The operational criteria and managing water production is another important chapter, because it takes into account all available resources. The paper will describe: 1. several innovative details of the plant and the construction; 2. the construction and operation feedback; 3. the criteria to decide the production of the plant; 4. the follow-up of main parameters of seawater and plant; 5. the real energy consumption in the different stages; 6. results of pre-treatment, RO trains and post-treatment from the first two years of operation; 7. and the integration of the plant in the regional water supply system, considering the principal factors: 1.1 Volume storage in the dams. 1.2 The operation of the drinking water plants. 1.3 The pluviometry and the climate predictions. 1.4 The regional water supply planning. The rest of the available resources (ground water, etc.).
机译：Barcelona-Llobregat海水淡化厂实际上是欧洲最大的海水淡化厂，可从地中海的海水中生产饮用水。该工厂能够供应巴塞罗那大都市区约20％的自来水，每天最大供水量为200,000立方米。这个项目是由加泰罗尼亚政府的上市公司Aiguees Ter-Llobregat（加泰罗尼亚的Generalitat）开发的，目的是解决水资源短缺问题并改善巴塞罗那南部地区的水质。 Degremont，Aiguees de Barcelona和Dragados-Drace的合资企业在严重干旱期间以24个月的极短交货期建造了该工厂。该工厂于2009年7月开业，从那以后同一家合资企业开始运营。 Barcelona-Llobregat SWRO工厂获得了年度海水淡化厂的2010年全球水奖。一个中试工厂已经运营了两年，以帮助设计并获得地中海海水的经验。这些设施位于巴塞罗那港口和Llobregat河口之间的工业区El Prat，紧邻巴塞罗那Dep-urBaix的废水处理厂之一。离岸2公里处有一个深水口，为工厂供水，避免了Llobregat河的影响，特别是在大雨期以及港口泄漏的情况下。海水被抽走了三分半多公里，通过一条地下管道穿越河流。一个非常强大的预处理膜可以保护反渗透（RO）膜：第一步是设置10套SeaDAF〜？高速浮选机，然后是20个Mediazur〜？重力过滤器和20 SeaClean〜？加压双介质过滤器。 18个5微米的筒式过滤器可确保抛光。预处理海水的粉尘密度指数_（15）始终低于3.0％/ min，平均值小于2.5。单个HP泵为10台日产量超过20,000 m〜3 / day的RO火车供料，每列火车配备23台PX220，可确保能量回收。第二次通过可确保处理水中的硼浓度低于1.0mg / 1（两列16,500m〜3 /天）。采用创新设计的CO_2和上流石灰石过滤器进行再矿化。将饮用水泵送到Fontsanta水库12公里以上，与来自两个饮用水厂的水混合，其中一个经过电渗析逆处理。盐水具有创新的处理方法：将其与DepurBaix废水处理厂的处理后的水以低于1：1的比例混合，并通过扩散器以50 m的深度排放至距进水口3 km以上。所有废水在排放之前都经过处理，并且工厂已经进行了污泥处理。该工厂增加了“绿色标签”，在建筑物屋顶上增加了风力发电机和光伏板，以最大程度地减少内部电力消耗。运营标准和水生产管理是另一重要章节，因为它考虑了所有可用资源。本文将描述：1.工厂和建设的一些创新细节； （二）建设及运营反馈； 3.决定工厂生产的标准； 4.跟踪海水和植物的主要参数； （五）不同阶段的实际能耗； 6.运营头两年开始的预处理，反渗透列车和后处理的结果； 7.考虑到以下主要因素，将工厂整合到区域供水系统中：1.1大坝中的蓄水量。 1.2饮用水厂的运营。 1.3测雨法和气候预测。 1.4区域供水规划。其余可用资源（地下水等）。

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