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《西安市再生水利用配置试点实施方案》来啦!

2022-09-14 09:04:23来源:西安生态环境 阅读量:9834

导读:近日,西安市水务局等七部门印发《西安市再生水利用配置试点实施方案》,提出到2023年,将初步建立再生水配置管理体系,西安市年再生水利用量达到3.1亿立方米,再生水利用率达到30%。
  日前,市水务局、市发改委、市住建局、市城管局、市工信局、市自然资源局、市生态环境局七部门联合印发《西安市再生水利用配置试点实施方案》。
 
  西安市作为黄河流域国家中心城市,2020年市人均水资源占有量为193立方米,约为全省的五分之一,全国的十分之一,属水资源严重匮乏的城市。因此,西安市开展再生水利用配置试点既是落实中央决策部署的重要举措,也是解决西安再生水利用不充分问题的重要抓手。根据方案,西安市将坚持“节水优先、空间均衡、系统治理、两手发力”的治水思路,探索形成先进适用成熟的再生水利用配置模式,为不断提高西安再生水利用配置水平提供经验。
 
  据悉, “十四五”期间,通过完善再生水利用规划布局、配置管理和建立健全相关激励政策为重点,西安市将因地制宜制定规划目标、创新配置方式、拓展配置领域、完善产输设施,大幅提高再生水利用率。
 
  到2023年,将初步建立再生水配置管理体系,西安市年再生水利用量达到3.1亿立方米,再生水利用率达到30%;到2025年,将基本建立再生水配置管理体系,逐步完善再生水利用激励政策,西安市年再生水利用量达到3.6亿立方米,再生水利用率达到35%以上。
 
  通过试点,西安市将在再生水规划、配置、利用、产输、激励等方面形成一批效果好、能持续、可推广的先进模式和典型案例。
 
再生水是什么水?
 
它用来做什么?
 
它能喝吗?
 
它从哪里来?
 
 
环保君科普时间到
 
一起来了解再生水的小知识吧!
 
  0什么是再生水
 
  把排放的生活污水和工业废水经过深度处理后可以利用的水称之为“再生水”,是可在一定范围内重复使用的非饮用水,其水质介于自来水(上水)与排入管网内污水(下水)之间,俗称“中水”。从经济的角度看,再生水的成本最低,从环保的角度看,污水再生利用有助于改善生态环境,实现水生态的良性循环。
 
  0西安再生水水质标准
 
  再生水可用作道路清洁、消防、建筑施工、车辆清洗、厕所冲洗等城市杂用水满足《城市污水再生利用城市杂用水水质》(GB/T 18920-2020);可用作城市绿化用水满足《城市污水再生利用绿地灌溉水质》(GB/T 25499-2010);可用作工业冷却洗涤、锅炉工业用水满足《城市污水再生利用工业用水水质》(GB/T 19923-2005);可用作补充地表水满足《地表水环境质量标准》(GB 3838-2002)、《陕西省黄河流域污水综合排放标准》(DB61/224-2018);用作补充地下水满足《城市污水再生利用地下水回灌水质》(GB/T 19772-2005;可用作景观环境用水满足《城市污水再生利用景观环境用水水质》(GB/T 18921-2019)
 
  0再生水管网情况
 
  城区内现运营再生水管网84公里,供水管网主要分布在西郊昆明路、丰庆路、环城西路、汉城路沿线;北郊西安北客站周边;东郊华清路及浐灞部分区域。城六区共设置消防取水点92个,其中西郊区域36个,东郊区域38个,北郊区域18个。
 
  0西安再生水利用现状
 
  随着我市经济社会的不断发展,城市需水量将逐年递增,再生水已从过去单一的工业冷却用水逐渐向城市第二水源转变。再生水的利用,使城市节约了大量城市优质水资源,为建设“大美西安”作出了卓越贡献。
 
  跟随环保君一起来看看
 
  西安目前都有哪些再生水利用典型~
 
 
幸福河生态公园
 
  幸福河原名幸福渠,始建于1958年,是西安城市五大排洪系统之一,承担着城北地区35平方公里的雨洪排放任务。随着城市的发展,周围工厂、住户的增加致使该段河道污水直排、严重淤积、河道内杂草丛生、垃圾遍地,河道水环境恶劣,气味难闻,环境面貌较差,与城市发展不相协调。自2017年起,西安市政府开展了幸福河综合治理及工程生态景观提升工程,2018年将再生水引入幸福河内,形成景观长流水。截至2021年底幸福河已累计使用再生水2025万吨。
 
  护城河
 
  2014年3月,护城河再生水引入工程开工,同年3月底完工并供水,全线采用DN400—DN600管径PE管,日最大可注入再生水约2.5万吨。2017年初,护城河朱雀门至西门段综合改造工程的开展,再生水管网改造工程同期实施,同年9月,完成管网改造工程,新增补水口3处(分别为含光门处、西南城角处、西门外处)。在2020年护城河玉祥门至东门综合提升改造工程中,新增玉祥门补水口。
 
  灞桥热电厂
 
  自2008年开始使用再生水,主要将再生水用于锅炉冷却循环用水,现已累计使用再生水6千余万吨。
 
  西安热电厂
 
  自2005年开始使用再生水,初期只将再生水用于循环冷却水。2011年,其自建“超滤+反渗透”系统车间,将再生水经深度处理后用于锅炉补给系统。现阶段,西安热电有限责任公司除生活及消防用水外,工业生产、循环、冲厕杂用均使用再生水,现已累计使用再生水5千余万吨。


       原标题:《西安市再生水利用配置试点实施方案》来啦!

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