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Integrated sewage purification equipment with micro-nano bubble generator

A technology of micro-nano bubbles and sewage purification, applied in the direction of sterilization/microdynamic water/sewage treatment, water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problems of uneven sludge discharge and sludge floating in sedimentation tanks , to achieve the effect of optimizing mud-water separation effect, clean drainage and low energy consumption

Active Publication Date: 2020-03-27
NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an integrated sewage purification equipment with a micro-nano bubble generator, which solves the problem of uneven sludge discharge and sludge floating in the sedimentation tank of the current integrated sewage purification equipment

Method used

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  • Integrated sewage purification equipment with micro-nano bubble generator

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Embodiment

[0039] (1) The start-up of domestic sewage integration device, including domestication of anaerobic sludge and aerated biofilm; the domestication of anaerobic sludge adopts the method of gradually shortening the hydraulic retention time, and the domestication of aerated biofilm adopts stuffy aeration way;

[0040] (2) After the system is started, the hydraulic retention time (HRT) is controlled at 3-4h, and domestic sewage is used as the influent. After stable operation, the frequency of the micro-nano bubble generator is adjusted to investigate the adsorption of sludge and SS by the adsorption fixed bed conditions and the replacement cycle of the adsorption fixed bed;

[0041] (3) Control the HRT at 3-4h, use domestic sewage as the influent, firstly change the anti-shock load capacity of the influent research system, and secondly change the anti-organic shock load capacity of the influent concentration research system;

[0042] (4) Control HRT at 3-4h, use domestic sewage as...

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Abstract

The invention discloses integrated sewage purification equipment with a micro-nano bubble generator, and belongs to the technical field of sewage treatment. The integrated sewage purification equipment comprises a sewage regulation tank, an anoxic tank, a first aerobic tank, a second aerobic tank and a sedimentation tank, and further comprises aerator pipes, a micro-nano bubble generator and an adsorption fixed bed. The aerator pipes are arranged at the bottoms of the first aerobic tank and the second aerobic tank. The micro-nano bubble generator is arranged at the bottom of the sedimentationtank, and the adsorption fixed bed is arranged in the middle of the sedimentation tank. An electric double layer is formed around the interface of micro-nano bubbles generated by the micro-nano bubblegenerator and has a very strong adsorption effect on suspended substances, the suspended substances adsorbed by the micro-nano bubbles are more easily attached to the adsorption fixed bed, and the separation effect of suspended sludge, SS and the like in a water body is enhanced. Because of the addition of the micro-nano bubbles, the phenomena of non-uniform sludge discharge and sludge depositionare avoided.

Description

technical field [0001] The invention relates to an integrated sewage purification device with a micro-nano bubble generator, belonging to the technical field of sewage treatment. Background technique [0002] In the process of sewage treatment, the composition and structure of the sewage to be treated are relatively complex. There are a large number of granular and water-insoluble colloidal substances in the polluted water body, and its density is close to that of water, so that these pollutants are suspended in the water body. It does not float up to form scum, and it is difficult to settle to form sediment, which cannot be effectively removed, which increases the difficulty of sewage treatment. [0003] Dispersed sewage treatment equipment generally adopts AO+ contact oxidation biochemical treatment process, and the equipment is divided into three functional sections: anoxic, aerobic, and sedimentation. Among them, the sedimentation part adopts the natural settlement meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/28C02F3/30C02F3/02C02F2001/007C02F1/28C02F1/58C02F1/50C02F2303/04C02F2301/08Y02W10/10
Inventor 陈金干孙捷邢立群
Owner NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH & ENG RES INST
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