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沙坪坝 河长上了岗 河水要变样

2017-08-22 08:27:22   中国青年网

一河一策

河长制落到实干上

位于沙坪坝主城区内的清水溪是嘉陵江的一级支流,这条发源于歌乐山镇山洞村的支流,干流全长15公里,流域面积达35.54平方公里。在这一流域内,常住居民超过30万人,还有大量的工业企业,每日排放的生活污水有8万吨,产生生活垃圾300吨,是一条治理任务极重的溪河。

河长接任后,在区委、区政府的支持下,与相关部门、沿河相关单位一起,采取“一河一策”的治理方法,对该溪流的污染进行综合治理。

这“一河一策”的治理方法首先是从清理水源入手。为保证清水溪来水水质,区里在河流水源保护区实施了取缔经营性养殖、整治工业企业废水、建立生态保护等措施,先后取缔了18户畜禽养殖户,关停、搬迁污染企业500余家,建设完成了高滩岩湿地和6.4公里的生态护岸,确保源头活水。

源头干净了,跟着便是截断污物。针对生活垃圾、污水排放量大的实际情况,在清水溪流域内进行了河道清淤、管网修复等60余项专项整治。仅去年以来,就完成截污控源工程投资3700余万元,建成了7000余米的截污管网,实现对周边污水的有效收纳。

为彻底根治垃圾、污水等对清水溪的污染,区里集中开展了治污基础设施建设,进行强化治理。流域内先后建起4座污水处理站、13座垃圾中转站,实现了垃圾集中收储,污水集中处理。下一步,将投入6500万元,在高滩岩湿地至磁器口入江口的9公里长河段,实施推流曝气原位修复、水质改善及河道两岸综合整治等措施,彻底消除黑臭水体。

“其实,自河长们上岗以来,全区的溪河都开始实施‘一河一策’的办法,对水体进行整治和保护。”沙坪坝区河长办相关负责人说,比如在梁滩河的治理上,在主河道和支流上根据不同的情况,分别制订出污染源治理、河道疏浚和整治、河道保洁、排污口封堵、违章清理、河岸绿化、生态修复、水质改善等“一河一策”治理方案。

工程治理

从根源上治理水污染

在沙坪坝区,目前正在实施一项总投资达63亿元的嘉陵江磁井段防洪护岸综合整治工程。这是一项融防洪、交通和城市景观为一体,定位为百年防洪堤、城市次干道、滨江景观带的工程。

据介绍,这项工程起于高家花园大桥,止于沙坪坝区与北碚区交界处,全长约13公里,防洪护岸按50年一遇洪水标高设计。目前,这一工程已经全面开工建设。

“工程治理河道和水污染是河长们上岗后推进最快的治理措施。”沙坪坝区河长办相关负责人说,这些工程项目都是大手笔。

在梁滩河的治理上,沙坪坝区实施了污水管网、污水处理、河道治理等重大工程。

在污水管网工程上,在梁滩河流域的青木关镇、凤凰镇、土主镇等地投资4523万元,新建污水管网11.9公里,修复管网0.7公里,新建泵站2座。

在污水处理工程上,沙坪坝区投入2.12亿元,扩建3座污水处理厂,提升处理排放标准,将现有的日处理能力由5万吨提高到10万吨以上,排放标准由现有的B标提升到A标。

在河道治理工程上,沙坪坝区投资6197万元,对梁滩河的干流及支流实施治理,将新建生态堤防、清淤河道等。

“这一系列的大手笔溪河治理工程,将从根本上提升沙坪坝区的水环境治理基础。”沙坪坝区河长办相关负责人说。

赵童 王睿 刘茂娇

图片由沙坪坝区河长办、沙坪坝区农业委员会提供

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