Integrated process for treating sewage by suspended bio-carrier

Abstract

The invention relates to a technical sphere of sewage disposal with biology suspended carriers. The invention said integrated biology treatment technology of sewage suspended carriers, comprises the following steps: a, reinforcing flocculating sediment: leading domestic sewage or industrial waste water and sequence stage flow-back miscible liquids into reinforced flocculating sedimentation basin, adding flocculant and mixing them, discharging the sediment from the bottom of settling zone; b, biotreatment and solid-liquid separation of an integral suspended carrier bioreactor: dividing a suspended carrier biology reaction pond with perforated boards or block walls into an anoxic zone, an aerobic zone, a solid-liquid separation zone, adding suspended carriers biology filler into each zone to get the integral suspended carrier bioreactor; making supernate obtained from step a flow into said three zones in turn, discharging sediment sludge from the bottom of the solid-liquid separation zone, the clear water discharger from the upper meeting emission standard. The process saves accommodation area, improves trash-removal effet, and it is suitable to different sewage disposal scale and inflow water quality.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to the technical field of sewage treatment using biological suspension carriers. Background technique [0002] Traditional sewage biological treatment processes represented by activated sludge process and biofilm process have been widely used in domestic sewage and industrial wastewater treatment for many years. These processes use secondary sedimentation tanks as a means of separating water and suspended solids, accounting for The land area is large, and the water quality stability of the treated water is not good. Some new biological treatment technologies cancel or replace the secondary sedimentation tank to overcome its shortcomings, such as biological aerated filter, membrane bioreactor, integrated oxidation ditch, mechanically stirred fluidized bed and deep filtration technology (including new filter material combined filtration Technology), etc. From the perspective...

AI Technical Summary

Problems solved by technology

[0002] Traditional sewage biological treatment processes represented by activated sludge process and biofilm process have been widely used in domestic sewage and industrial wastewater treatment for many years. These processes use secondary sedimentation tanks as a means of separating water and suspended solids, accounting for The land area is large, and the water quality stability of the treated water is not good

Some new biological treatment technologies cancel or replace the secondary sedimentation tank to overcome its shortcomings, such as biological aerated filter, membrane bioreactor, integrated oxidation ditch, mechanically stirred fluidized bed and deep filtration technology (including new filter material combined filtration Technology), etc. From the perspective of application status, these integrated treatment processes or technologies are mainly used in community sewage or scattered small-scale sewage treatment fields. When the scale of sewage treatment increases to thousands of tons or the water quality of influent fluctuates greatly, it cannot play to its advantage

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