Efficient activated carbon adsorption loading sedimentation tank and sewage treatment process thereof

Abstract

The invention relates to the technical field of sewage treatment, in particular to an efficient activated carbon adsorption loading sedimentation tank and a sewage treatment process thereof.The efficient activated carbon adsorption loading sedimentation tank comprises a water distribution channel, an activated carbon adsorption tank, a coagulation tank, a flocculation tank, an inclined tube sedimentation sludge concentration tank and a water outlet channel which are sequentially and adjacently communicated from left to right; the left end of the water distribution channel is externally connected with a water inlet end, and a sewage detection group is arranged between the water inlet end and the activated carbon adsorption tank water distribution channel; a medium tank is arranged at the bottom of the inclined tube sedimentation sludge concentration tank, a central transmission sludge scraper is arranged in the inclined tube sedimentation sludge concentration tank along the end close to the medium tank, inclined tube filler is arranged above the central transmission sludge scraper, a water collecting tank is arranged above the inclined tube filler, and the water collecting tank is communicated with a water outlet channel; the bottom of the medium groove is externally connected with a medium backflow treatment set.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a high-efficiency activated carbon adsorption loading sedimentation tank and a sewage treatment process thereof. Background technique [0002] In the existing treatment process of sewage treatment plants, SS and TP (SS refers to suspended solids in sewage and TP refers to total phosphorus in sewage) are often removed by adding sand and sedimentation tanks. The main components of the sand-adding sedimentation tank are composed of three units: the coagulation area, the sand-adding flocculation area, and the inclined tube sedimentation sludge concentration area. . [0003] The existing sand-adding sedimentation tank has the following defects: (1) The content of COD (COD refers to substances that can be oxidized by strong oxidants in sewage) in the dry season water is relatively high, and the microbial activity in winter is relatively low, resulting in limited biochemical t...

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Problems solved by technology

[0003] However, the existing sand-adding sedimentation tanks have the following defects: (1) COD (COD refers to substances that can be oxidized by strong oxidants in sewage) is high in dry season water, and the microbial activity in winter is relatively low, resulting in limited biochemical treatment capacity. The effluent COD is too high, and the sand-adding sedimentation tank is designed to remove TP and SS. In the sewage treatment, only part of the COD can be removed incidentally, and the effect on COD reduction is limited; (2) In the existing activated carbon sedimentation tank, In the design of working conditions, because the activated carbon failed to achieve the best saturation adsorption time, the overall utilization rate was not high, and the cost of chemical consumption was high; (3) A large amount of sludge was discharged from the traditional sand-adding sedimentation tank, and the residual sludge in the sludge The medicines can not be fully utilized, which is not conducive to reducing the consumption of medicines

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