Reaction device for deep treatment of drinking water and method for deep treatment of drinking water by water factory

Abstract

The invention relates to the field of drinking water treatment, in particular to a reaction device for deep treatment of drinking water and a method for deep treatment of the drinking water by a water factory. In order to realize the goal of transforming the conventional drinking water treatment process into the deep treatment process, the reaction device and the method adopt the scheme that (1) a static mixer and a coagulation reaction pool are not changed; (2) a sedimentation pool is transformed into an ultrafiltration membrane pool; (3) a medium water pool and a lifting pump used for waterlifting are additionally arranged at the back end of the ultrafiltration membrane pool; (4) a main ozone oxidization pool is in additional arrangement; and (5) an original sand filter pool is transformed into a particular active carbon filter pool. The coagulation and the ultrafiltration are combined, particular colloid and macromolecular organic matters in the water are removed, difficult-to-degrade pollutants are damaged through ozone oxidization, in addition, the macromolecular organic matters are converted into middle and small molecular weight organic matters, and organic matters and pollutants such as ammonia nitrogen and the like in the water are further reduced through the absorption of particular active carbon and the biological degradation of microbes grown on the surface.

Description

technical field [0001] The invention relates to the field of drinking water treatment, in particular to transforming a conventional drinking water treatment reactor into a drinking water advanced treatment reactor, and a method for water plants to use the drinking water advanced treatment reactor to carry out drinking water advanced treatment. Background technique [0002] my country will enforce the "Drinking Water Sanitation Standard (GB5749-2006)" in 2012. Compared with the "Drinking Water Sanitation Standard (GB5749-1985)", the new drinking water standard has greatly increased the indicators of synthetic organic substances such as pesticide chemicals and disinfection by-products, and set the limit of ammonia nitrogen concentration in water to 0.5mg / L. In addition, drinking water sources in some cities are polluted by natural organic matter, and oxygen consumption is difficult to meet the standard; some cities have pollution problems such as algae and their metabolites,...

AI Technical Summary

Problems solved by technology

However, this method has limited ability to remove micro-pollutants such as natural organic matter and pesticides with medium molecular weight or small molecular weight, especially for ammonia nitrogen.

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