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杭州鼎辉环保科技有限公司主营:浸没式起滤|尾水回用设备|末端回用设备 dinghuihuanbao@163.com 0571-85367375 / 13819162625

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  • 中水回用与分质排水
  • 本站编辑:杭州鼎辉环保科技有限公司发布日期:2017-12-19 09:31 浏览次数:

中水回用,就是把生活污水(或城市污水)或工业废水经过深度技术处理,去除各种杂质,去除污染水体的有毒、有害物质及某些重金属离子,进而消毒灭菌,其水体无色、无味、水质清澈透明,且达到或好于国家规定的杂用水标准(或相关规定),广泛应用于企业生产或居民生活。适用于宾馆、饭店、居民小区、公寓楼宇、学校、医院、工厂区域、机关部队等单位的浇洒绿地、洒扫卫生、冲洗路、站、台、库,景观用水,消防补给水、水冷却循环补充水、冲车用水等等。

Water reuse is the sewage (or city sewage) or industrial wastewater by deep processing technology, to eliminate all kinds of impurities, toxic and harmful substances and some heavy metal ions removal of polluted water, and disinfection of the water, colorless, tasteless, the water is clear and transparent, and better than the state standard (Miscellaneous water or the relevant provisions), widely used in the production and life of residents. Apply to hotels, hotel, residential, apartment buildings, schools, hospitals, factories, offices and other units of the regional troops poured green, clean sanitation, flushing Road, station, station, library, landscape water, fire water supply, water circulating cooling water, turning water supplement.


中水水源分为优质杂排水和污水处理,中水水源一般不是单一水源,大多有三种组合方式:

The water source in the middle water is divided into high quality miscellaneous drainage and sewage treatment. The water source in the middle water is generally not a single water source, and most of them have three kinds of combination methods:


1)盥洗排水、淋浴排水、循环冷却水称为优质杂排水,应优先选用;

1) wash drainage, shower drainage and circulating cooling water are called high quality miscellaneous drainage, which should be selected first.


2)冲厕排水以外的生活排水称为杂排水;

2) the living drainage outside the toilet drainage is called the miscellaneous drainage.


3)污水处理,即所有生活排水的总称,这种水质比较差。

3) sewage treatment, the general term of all living drains, is the worst.


中水回用处理工艺根据污水水量以及回用的水质和水量要求等,综合考虑经济技术参数,确定比较佳处理工艺。

According to the water quantity of sewage and the water quality and water requirement of the reused water, the best treatment process is determined by the comprehensive consideration of the economic and technical parameters.


一、国家中水回用标准

National standard for water reuse


1.回用方向

Direction of 1. return


(1)农田灌溉水质标准 (GB5084)

(1) water quality standard for farmland irrigation (GB5084)


(2)工业冷却用水指标控制

(2) control of industrial cooling water index

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(3)城市杂用水水质标准

(3) standard for water quality in urban mixed water


(4)再生水作为景观环境用水的水质标准

(4) the water quality standard of reclaimed water as landscape water


(5)中水用于采暖系统补水等其他用途时,其水质应达到相应使用要求的水质标准。

(5) when the water is used for other uses such as water supply for heating system, the water quality should meet the water quality standards required for the corresponding use.


说明:当再生水用于多种用途时,其水质标准应按最高要求确定。对于向服务区域内多用户供水的城市再生水厂,可按用水量比较大的用户的水质标准确定。个别水质要求更高的用户,可自行补充处理,直至达到该水质标准。

When reclaimed water is used for a variety of uses, the standard of water quality should be determined according to the highest requirement. For the urban reclaimed water plants that supply water to many users in the service area, the water quality standard of the users with the largest water consumption can be determined. Individual users with higher water quality can be supplemented by themselves until the water quality standard is reached.


2.主要指标水质标准

2. main indexes of water quality standard


中水是指各种排水经处理后,达到规定的水质标准,可在生活、市政、环境等范围内杂用的非饮用水。因为它的水质指标低于生活饮用水的水质标准,但又高于允许排放的污水的水质标准,处于二者之间,所以叫做“中水”。

Refers to various kinds of drainage water after treatment, meet the prescribed standards for water quality, can use in the life, municipal, environmental scope of non potable water. Because its water quality index is lower than the water quality standard of drinking water, but it is also higher than the water quality standard of the permitted discharge. It is between the two, so it's called "reclaimed water".


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