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Multi-stage diversion SSMBBR sewage treatment system and treatment method

A sewage treatment system and deflector technology, which is applied in biological water/sewage treatment, light water/sewage treatment, water/sewage multi-stage treatment, etc. and other problems, to achieve the effect of reducing construction investment, long time, and enhancing the removal of total nitrogen

Active Publication Date: 2017-06-30
CHENGDU FUHUA ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the filler in the existing SSMBBR reactor is in a fluidized state by aeration and the lifting effect of water flow. In actual engineering, local filler accumulation is easy to occur, resulting in a longer sewage treatment cycle, lower treatment efficiency, and higher water head loss. Large, unstable water quality, etc.

Method used

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  • Multi-stage diversion SSMBBR sewage treatment system and treatment method

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Experimental program
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Effect test

Embodiment 1

[0042] 1. A multi-stage diversion type SSMBBR sewage treatment system

[0043] Such as figure 1 As shown, a multi-stage diversion type SSMBBR sewage treatment system includes anaerobic section 1, denitrification section 2, aerobic section 3, filtration section 4, sedimentation section 5, deflector A6, deflector B7, Stirrer 8, fan 9, mixed liquid return pump 10, screen 11, microporous aerator 12, sludge pump 13, control valve 14 and partition 15, anaerobic section 1 and denitrification section 2, denitrification section 2 and the aerobic section 3, the filtration section 4 and the precipitation section 5 are all provided with a partition 15, and the lower part of the partition 15 is fixed on the bottom of the reactor, and the reaction section on both sides of the partition 15 is in overflow communication, and the anaerobic section The inlet end of the anaerobic section 1 is parallel to the wall surface of the anaerobic section 1, and a deflector A6 is arranged. The inlet end o...

Embodiment 2

[0058] One, a kind of multistage diversion type SSMBBR sewage treatment system (same as embodiment 1)

[0059] 2. Sewage treatment process

[0060] The concentration of sewage COD is 320mg / L, BOD 5 The concentration of SS is 170mg / L, the concentration of SS is 180mg / L, the concentration of TN is 35mg / L, the concentration of ammonia nitrogen is 25mg / L, the concentration of total phosphorus is 4mg / L, and the rural domestic sewage with a pH value of 6-9 , after the grid treatment, the large particle suspended matter and floating matter are intercepted, the sewage enters the regulating tank, and after staying in the regulating pond, the sewage is sent to the above-mentioned multi-stage diversion type SSMBBR sewage treatment system, and anaerobic treatment is carried out in turn. Treatment, denitrification treatment, aerobic treatment, filtration section treatment and sedimentation section treatment, to obtain sewage with various physical, chemical, and biochemical indicators qual...

Embodiment 3

[0062] One, a kind of multistage diversion type SSMBBR sewage treatment system (same as embodiment 1)

[0063] 2. Sewage treatment process

[0064] The concentration of sewage COD is 280mg / L, BOD 5 Rural domestic sewage with a concentration of 150mg / L, a concentration of SS of 180mg / L, a concentration of TN of 35mg / L, a concentration of ammonia nitrogen of 25mg / L, a concentration of total phosphorus of 4mg / L, and a pH value of 6-9 , after the grid treatment, the large particle suspended matter and floating matter are intercepted, the sewage enters the regulating tank, and after staying in the regulating pond, the sewage is sent to the above-mentioned multi-stage diversion type SSMBBR sewage treatment system, and anaerobic treatment is carried out in turn. Treatment, denitrification treatment, aerobic treatment, filtration section treatment and sedimentation section treatment, to obtain sewage with various physical, chemical, and biochemical indicators qualified, and finally t...

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Abstract

The invention belongs to the technical field of sewage treatment, specifically to a multi-stage diversion SSMBBR sewage treatment system and treatment method. According to the method, main technology including a grid, a regulating tank, a multi-stage diversion SSMBBR sewage treatment system, a filter cloth filter tank and ultraviolet disinfection, which in the multi-stage diversion SSMBBR sewage treatment system includes an anaerobic segment, a denitrification segment, an aerobic segment, a filtration segment and a precipitation segment. A baffler is reasonably added so as to achieve function division, optimize a liquid flow, reduce head loss and prolong the residence time. The treatment effect of the reactor is greatly improved, and the quality of the outlet water is maintained stable.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a multi-stage diversion type SSMBBR sewage treatment system and a sewage treatment method. Background technique [0002] A new type of multi-stage diversion SSMBBR sewage treatment system is divided into five reaction zones, which are anaerobic section, denitrification section, aerobic section, filtration section, and sedimentation section. A large number of suspended carriers can increase the biomass and biological species in the reactor, thereby improving the treatment efficiency of the reactor. Since the packing density is close to water, it is completely mixed with water during aeration. In addition, each carrier has different biological species inside and outside, and some anaerobic or facultative bacteria grow inside. The environment for microbial growth is Three phases of gas, liquid and solid. The collision and shearing action of the carrier in the ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/32C02F3/10C02F3/28C02F3/305C02F9/00C02F2001/007
Inventor 张少华
Owner CHENGDU FUHUA ENVIRONMENTAL PROTECTION TECH CO LTD
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