【摘要】 水资源危机已成为全球关注热点问题,快速城镇化导致生活用水需求剧增,亟需开发新型实用节水技术。为解决城镇生活用水资源紧张的问题,提出了城镇生活节水"5R"技术体系,一是开发超低用水量的真空便器、无水气冲便器、智能计量沐浴系统等节水器具并推广使用,实现用水量减少(Reduce);二是采用污水源分离系统,实现黑水的能量回收和灰水资源的多用途回用(Resource,Recycle);三是开发雨水收集、处理和贮存技术体系,实现水资源回收(Recover);四是对原城镇排水系统污水处理厂出水与中水进行水质调控,提出保证不同用水水质的安全回用(Reuse)技术。对以上技术进行集成与综合节水定量评价,形成节水综合管理和决策系统("5R"技术体系),以期解决城镇生活用水多水源多用户的水量平衡和水质转化关系等问题。更多还原

【Abstract】 The water resource crisis has become a hot issue in the world. Rapid urbanization has led to a sharp increase in demand for domestic water,and it is urgent to develop new and practical watersaving technologies. A novel "5R"technology system for urban domestic water saving was put forward,in which the following four parts were included: ①developing the ultra-low water consumption of vacuum toilet,water free flushing toilet,intelligent metering bath system and other water-saving appliances to realize water reduction (Reduce); ②using sewage source separation system to realize the energy recovery of black water and the multipurpose reuse of the gray water resources (Resource, Recycle);③developing rainwater collection,processing and storage technology system to realize water resource recovery (Recover); ④ controlling water quality of effluent from sewage treatment plant and reclaimed water in the original urban drainage system,and putting forward the safe reuse (Reuse) technology to ensure different water quality. Then, the integrated and comprehensive water saving quantitative evaluation system would be carried out to form a water-saving management and decision-making system ("5R"technology system) which would solve the problem of water consumption and water quality conversion of multi-water sources and multi-users in urban domestic water consumption.更多还原