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长治“三河一渠”全程通水
2017-08-28 07:17:02 中国青年网
40万立方米优质水2周左右全部替换原来中水
本报讯 (记者李家鸣)8月12日,南护城河长子门段注入优质水源,滚滚浪花随即向着黑水河一路奔去,这标志着长治市主城区内由石子河、黑水河、南护城河和东防洪渠构成的环城水系——“三河一渠”实现全程通水。这个浊漳河流域生态治理重要项目的城市内河水系,在科学完善日常排污、汛期防洪的基本功能后,正在激活它的生态文化和景观休闲属性,泽润长治。
四条水系纵横穿越一座城市,这样的山水合一在我国北方地区并不多见,但有好处的同时往往又伴随有坏处,从其“黑水”的名字就可见一斑。随着城市的勃兴,几度治理却又几度废然,晴天闻臭,雨天看洪,俨然就是长治的“龙须沟”。2013年3月,长治市委、市政府顺应民意,决定对主城区“三河一渠”这条历时多年久拖不决的工程重新规划设计、综合治理改造。
作为长治市城市生态系统的重要组成部分,“三河一渠”环城水系整个工程全长22千米,主要包括河道治理、景观绿化、引调水和水质监测运行管理系统等建设内容。截至目前,已建设、修缮7座游园、6处湖泊、33座桥梁。整个“三河一渠”形成了风景秀丽的“闭环”式河廊公园,其中淮海公园、滨河斜拉桥等更成了当地的地标建筑,是长治人休闲健身的首选地。
据了解,此前“三河一渠”所蓄之水是污水处理厂处理后的中水,磷、氮和富氧成分含量较高,一旦气温偏高,河道内极易产生大量藻类,导致水体变质,产生气味,不仅影响市民游园,也严重影响整体景观效果。为了改善水质,提升“三河一渠”品质,从8月12日开始,从长子申村水库调水,预计15天左右可调水40万立方米,完成已蓄水段水质的全部替换。届时“三河一渠”的水质将达到国家II级水源水标准。
另据了解,依托“三河一渠”经济带,当地正在合力规划商业步行街、城市绿化、休闲广场、停车场等配套基础设施,打造富有地域文化、时代特色、民族风情的商业街区,真正建设成治水活水、乐水美水、山河怡趣、环城流美的生态之城。
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