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南水进京总量超25亿立方米

2017-08-06 10:15:14   中国青年网

本报讯(记者 朱松梅)截至本月1日,南水进京总水量已突破25亿立方米。记者从市南水北调办获悉,南水水质始终稳定在地表II类,极大缓解了首都水资源紧缺形势,北京人均水资源量从100立方米左右增加到150立方米, 1100万人喝上了南来水。

8月1日上午11时33分,惠南庄泵站显示,自2014年底通水以来,已经有整整25亿立方米南水涌入北京。

好水要用在刀刃上。25亿立方米南水中,17.14亿立方米流入各大水厂,进入千家万户供居民饮用,其余则用于水库存蓄和回补地下水,为市民后续用水打好基础。目前,南水已占城区日供水量的七成,成为主力水源。供水范围基本覆盖中心城区、丰台河西地区和大兴、门头沟等新城,以及昌平、通州部分地区,直接受益人口超过1100万人。水碱少了,口感甜了,是市民的普遍感受。

“南水,让城市供水格局更平衡。”市规划设计研究院相关负责人告诉记者,南水进京之前,城区的大型水厂主要集中在北部和西部,东部、南部长期缺少骨干水厂,供水格局呈现不平衡的状态。随着南水北调配套工程的建设,城南建设了郭公庄水厂、规划了亦庄水厂,城东建设了第十水厂。此外,在郊区新城,也规划了以南水为水源的骨干水厂,能够进一步提高区域供水保障率。

南水充实了本市的“水家底”,人均水资源量从100立方米提高到150立方米。随着长江水成为供水主力水源,再加上较为丰沛的降雨,本市的“大水盆”密云水库的水位在持续上涨。2015年底密云水库调蓄工程启动运行,通过九级泵站将南水反向输送至十三陵、怀柔、密云等水库,总计输水约3.74亿立方米,其中存入密云水库2.80亿立方米。目前,密云水库蓄水量超18亿立方米,创2000年以来的蓄水新高。

市南水北调办相关负责人介绍,随着北京城市副中心、新机场、冬奥会等重点功能区的建设,新的城市功能定位对本市的水资源保障、水安全提出了新要求。下一步的南水北调市内配套工程建设将紧密结合国家战略及重点区域的规划、用水需求,不断优化调整项目的建设时序。

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