Inorganic flocculant flocculation sedimentation is selected (such as aluminum sulfate) and organic anionic flocculant (PAM) ammonium polypropylene acyl mixture in aqueous solution to join wastewater, will produce compressed double electric layer, make the waste water in aerosols lose stability, colloidal particles condensed each other make particles increases, formation of flocculation body, alum flowers. After flocculation body length to a certain volume under the action of gravity from the water phase precipitation, to remove the large amounts of suspended solids in the wastewater, so as to achieve the effect of water treatment. In order to improve the separation effect, can timely, right amount add coagulant aid. Processed sewage in the chromaticity, the respect such as chromium, suspended solids content basically can reach discharge standards, can outside or used as artificial water flooding oil recovery of water flooding back.

    Flocculant is one of the most widely used in sewage treatment agent, flocculation process is indispensable key link in sewage treatment process. According to its chemical composition can be divided into: organic flocculant, inorganic polymer flocculants and microbial flocculants. The user can make reasonable choice according to the nature of the wastewater is different. Flocculant combined with wastewater treatment equipment, make the waste water treatment effect more, effectively solved the difficult problem for wastewater treatment.

    The application of flocculant in wastewater treatment can effectively enhance the sewage treatment rate, make the waste water treatment effect is remarkable. At present, the agent which has been widely applied in industrial wastewater treatment, and ensure the water quality after the large sewage treatment equipment can conform to the provisions of the state emission standard, effectively prevent the deterioration of the present situation of water pollution, ensure the sustainable development of ecological environment.

    Organic polymer flocculant in the treatment of refinery wastewater adding flocculating agent is to make the water and quick, thorough separation of impurities.