For ensuring safety production,confirming gushing water sources of coal mines with mining,and accurately using prevention and cure scheme,we draw off water samples from the aquifer influencing mining production,and test and analyze their quality,and establish the standard water samples.

According to corrosion classification criteria in international petroleum industry and documents concerning injected water quality in China,the author evaluates and optimizes control indications of injected water quality standards and gets good effects.

A great deal of comparisons on domestic and international water quality standards of intermediate water are passed,and draw some conclusions : The requirement of the domestic and international water quality standards of intermediate water is similar in the pH,solid suspending matter,dissolved solids,total P,ammonia nitrogen,chromaticity and so on.

This paper reviews the present situation and problems of water processing technology,including the development of water quality criteria and management,and the study of the water quality of source waters,factory waters and tap waters.

Characters of water quality standard of urban water supply which is recently promulgated;

The paper discusses the classification of city sewage quality,proposes water quality standard of reclaimed water and sewage treatment applied to sewage source heat pump systems,analyses the characteristics and applying condition of varied sewage heat exchangers.

This paper discussed how to define the effluent quality standard and the principle of making water quality standards.

this standard of water quality has alread.