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通州水厂一期工程正式通水

2017-08-30 14:41:25   中国青年网

本报讯(记者叶晓彦)通州水厂一期工程正式投入运行,全部取用南水北调水源,一期日供水能力20万立方米,周边23万人受益。截至目前,通州共有通州地下水水厂、甘棠水厂、通州水厂等五路来水保障通州城区供水,从而有效缓解通州城区供水紧张的局面。

市自来水集团潞洲水务有限公司副总经理肖春龙介绍,通州水厂一期工程7月24日试通水运行,8月26日投入运行,日供水能力20万立方米,并规划建设二期、三期工程,远期日供水能力将达60万立方米。

今天上午记者探访位于通州区台湖镇的通州水厂一期,清澈的南水通过通州支线从南水北调供水环路东干渠进入水厂,经过预处理、常规处理及臭氧活性炭深度处理工艺之后,流入周边20平方公里范围内的小区和街区。在高效沉淀池,记者看到,这里有泛着红色、飘着絮状沉淀物的絮凝池,还有由很多斜管组成的蜂巢状结构沉淀池,正是这道水处理工序将水中悬浮的杂质去除,水质变得清澈,出厂水质达到国家106项生活饮用水卫生标准。“国标中对于出厂水质的浊度要求为1个NTU ,我们的出厂水的浊度只有0.1NUT。”肖春龙说,对于喝上通州水厂自来水的通州居民来说,感官上最大的变化就是水的硬度降低了,“家里烧水壶底的水垢会大大减少。”

除了水质有所改善,对于通州城区的居民来说,通州水厂一期投入运行之后,当地缺水状况也会进一步得到明显好转。以前,通州城区的居民常饱受缺水之苦,自来水流出的水流过细,甚至停水。“2015年以前,通州只有通州地下水水厂和朝阳北路输水管线两路供水来源,满足不了通州城区日益增长的用水需求。”肖春龙说,2015年以来,市政府增加了对通州的供水能力,先后建设了甘棠水厂和广渠路东延输水管线,而通州水厂一期成为第五路水源,进一步保障了通州的用水需求。根据测算,此前4个供水来源的日供水能力为17.4万立方米,通州水厂投入使用后,日供水能力先期增加了5万立方米,五路来水总共为通州城区提供22.4立方米的用水保障,远远高于通州用水高峰日14.7万立方米的需求。

为了保障水质,水厂已对供水区域内41公里管线进行了改造,对5条主干线进行冲洗,降低“黄水”等水质适应性风险。同时在试供水范围内设置水质监测点24处,密切关注管网水质风险点和重点用户。

通州水厂投入运行后,本市接纳南水的水厂已增至8座,即郭公庄水厂、第三水厂、第九水厂、田村山净水厂、309水厂、长辛店水厂、门头沟城子水厂和通州水厂,直接受益人口超过1100万,城区7成供水来自南水。截至2017年8月30日,江水进京水量突破26.07亿立方米,其中有17.77亿立方米用于自来水厂供水,6.09亿立方米存入大中型水库和地下应急水源地,2.21亿立方米替代密云水库用于河湖补水。J224

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