再生水水质标准及工程实例 - Wasyeu.ppt

北京高碑店 Beijing Gaobeidian 北京高碑店 Beijing Gaobeidian 北京高碑店 Beijing Gaobeidian 西安北石桥 Xi’an Beishiqiao 混凝沉淀过滤，50,000 m3/d Coagulation + Sedimentation + Filtration 西安北石桥 Xi’an Beishiqiao 热电厂冷却 Cooling，Power Heat Plant 青岛海泊河 Qingdao Haipohe 絮凝沉淀过滤，40000m3/d Coagulation + Sedimentation + Filtration 市政杂用（河道补充与绿化） Municipal and Landscape 低压锅炉给水中试 Boiler （pilot test） 中央空调循环冷却用水 Industrial cooling 牛仔布水洗磨砂用水 Industrial processing 厂内循环冷却与脱水机冲洗 In-WWTP 青岛海泊河 Qingdao Haipohe 工业生产用水 Industrial processing 4.Findings Recommendations结论与建议 设计能力利用率低 Low Utilization of Design Capacity 多数再生水厂生产销售量明显低于设计能力 Actual production/sales much lower than design capacity 普遍缺乏足够用户 Commonly shortage of users 管网不足 Distribution pipelines shortage 不合理水价 Unreasonable water tariff 水质问题 Water quality problem 水资源管理问题 Improper water resource management 成本回收问题 Cost recovery difficulty 用户发展成为主要任务 User development becomes a major task 需要生产者及政府的共同努力 Needs joint efforts of suppliers and government 再生水系统：采用集中型还是就地就近型？Centralized system or onsite/point-of-sale system ？ 集中型系统的限制因素 Constraints of Centralized system 管网投资高 （北京） High pipelines costs，Beijing 难以同时满足不同用户的水质和水量需求 Difficult to simultaneously meet the various user’s requirements in quality and flow-rate 适合污水厂周围 Better for applications near WWTP 适合水质要求相同的批量用户或大水量用户 Better for similar quality requirement larger demand 就地就近型系统 Onsite/point-of-sale system 集中与就地/就近相结合 Combination of both systems 再生水法规支持体系与综合管理机制Legal supporting system management mechanism 建立相关法规、政策与标准，进行指导与督查 Establish relevant regulations, policies and criteria/standard for guidance and enforcement 再生水规划纳入城市总体规划和水资源规划 Water reuse plan being part of city master plan water resource utilization plan 污水处理目标由达标排放转变为再生循环 Strategic objective shift from “discharge-standard” to the “water reclamation and recycling” 再生水标准 Reclaimed water standards 经历多次修订 Modified several times 存在需要修订之处 Some irrationality still exist. 再生水基本分类水质标准建议 Proposal