Drinking water quality standards and constantly improve the municipal water supply water is increasingly polluted, it put forward severe challenges to conventional water treatment technology, many water plant effluent water quality could not reach the requirements of drinking water quality standards, in the face of such situation, had to conventional water treatment technical reform and technical innovation. At present there are two ways to improve drinking water quality: one is the control of the sewage and improve sewage treatment, in order to protect the drinking water; The second is to strengthen treatment of polluted water depth processing. Basic knowledge of water treatment technology。

A. Water supply water quality indicators

1. The physical indicators

(1) the turbidity

(2) the suspended solids

(3) smell and taste

2. The chemical indicators

Single parameter (1) the impurities or pollutants

(2) the characteristics of inorganic composite indicator

(3) the comprehensive index of organic pollutant