Sewage treatment process for dispelling sludge in situ through biological regulation and control

Abstract

The invention relates to a sewage treatment process for dispelling sludge in situ through biological regulation and control. The sewage treatment process comprises the following steps of: 1, carrying out ozone micro-nano bubble treatment on excess sludge of a sedimentation pool in a biological sewage treatment process to obtain a wall-broken cell dissolution mixed solution, and homogeneously mixing with raw sewage as sewage feedwater which enters an anaerobic and anoxic pool and then enters an aerobic biochemical pool; 2, homogeneously introducing a mixed solution obtained by selectively culturing to obtain an active karyoplasm photochemical microbe through a life light from a part of the wall-broken cell dissolution mixed solution obtained through the ozone micro-nano bubble treatment and the raw sewage into the anaerobic and anoxic pool in a mixed way for a series of biochemical reactions; 3, separating the mixed solution obtained through reaction inside the aerobic biochemical pool to obtain supernate and a concentrated mixed solution; 4, discharging the supernate obtained through separation from the step 3, concentrating the mixed solution, and returning to execute the step 1 and the step 2; 5, carrying out purification and disinfection treatment on the supernate obtained through separation from the step 3, discharging as effluent water, and carrying out drying treatment on the excess sludge and inorganic silt which are positioned at the bottom of a concentrated mixed solution pool and in the anaerobic and anoxic pool.

Description

technical field [0001] The invention belongs to the technical field of sludge biological treatment process, and in particular relates to a sewage treatment process for biologically regulated in-situ digestion of sludge, in particular to a method for micronano ozone bubble cell wall breaking and photochemical biological digestion of sludge. Background technique [0002] With the increasingly serious water pollution, it is imperative to economically and effectively treat all kinds of sewage. At present, tens of thousands of sewage treatment plants are in operation around the world, and with the improvement of environmental awareness and environmental protection requirements, more sewage plants will be built soon. Sewage biological treatment has been widely used in sewage treatment due to its outstanding advantages of high efficiency and low consumption. The sewage biological treatment process represented by activated sludge and biofilm has achieved great success in water pollu...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a sewage treatment process for in-situ sludge digestion by biological regulation. The present invention solves the above-mentioned deficiencies in the existing active sewage treatment process, such as the generation of a large amount of excess sludge, and the existing sewage biological treatment process. And the problem that the dephosphorization effect of sewage biological treatment process is generally not good

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