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Biochemical treatment sewage modification technology

A biochemical treatment and sewage technology, applied in biological water/sewage treatment, filtration treatment, sedimentation treatment, etc., can solve the problems of large area of ​​secondary sedimentation tank and filtration equipment, increase of suspended solids in effluent, poor effluent quality, etc. Achieve the effect of reducing floor space, reducing sludge treatment costs, and compact equipment

Inactive Publication Date: 2018-06-19
沧州泓阳环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the traditional activated sludge process, too long sludge age will lead to an increase of suspended solids in the effluent, sludge swelling in the bioreactor, and poor effluent quality
The secondary settling tank and filtration equipment occupy a large area and take a long time to process

Method used

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  • Biochemical treatment sewage modification technology
  • Biochemical treatment sewage modification technology

Examples

Experimental program
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Effect test

Embodiment 2

[0040] A biochemical sewage treatment transformation process, comprising the following steps:

[0041] (1) Sewage pretreatment

[0042] First, the sewage enters the coarse screen through the pipeline, and then it is lifted into the fine screen through the lifting pump room to initially filter out the large-volume waste;

[0043] (2) Precipitation removal

[0044] The pretreated sewage is precipitated to remove impurities through a cyclone grit chamber, and the precipitation time is 40 minutes;

[0045] (3) Biochemical treatment

[0046] The sewage after the sedimentation is removed enters the biochemical treatment ditch through the water distribution well for biochemical treatment, and the biochemical treatment ditch is an anaerobic pond and an oxidation ditch;

[0047] (4) Precipitation treatment

[0048] Then the biochemically treated sewage enters the secondary settling tank through the water distribution well, the sludge in the secondary settling tank enters the mud st...

Embodiment 3

[0054] A biochemical sewage treatment transformation process, comprising the following steps:

[0055] (1) Sewage pretreatment

[0056] First, the sewage enters the coarse screen through the pipeline, and then it is lifted into the fine screen through the lifting pump room to initially filter out the large-volume waste;

[0057] (2) Precipitation removal

[0058] The pretreated sewage is precipitated to remove impurities through a cyclone grit chamber, and the precipitation time is 50 minutes;

[0059] (3) Biochemical treatment

[0060] The sewage after the sedimentation is removed enters the biochemical treatment ditch through the water distribution well for biochemical treatment, and the biochemical treatment ditch is an anaerobic pond and an oxidation ditch;

[0061] (4) Precipitation treatment

[0062] Then the biochemically treated sewage enters the secondary settling tank through the water distribution well, the sludge in the secondary settling tank enters the mud st...

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Abstract

The invention discloses a biochemical treatment sewage modification technology. The biochemical treatment sewage modification technology has the advantages that (1) the water quality of output water is good; the concentration of suspended solids in the output water is basically zero due to efficient interception of a membrane; the membrane has an interception effect on free thalli and certain difficult-to-degrade macromolecular granular materials; biological phases in a bioreactor are abundant, nitrifying bacteria with relatively long generation time are enriched, and protozoa and histozoa also can grow; (2) the residual sludge amount is small; in immersion type ultra-filtration, the water quality of the output water is not influenced by operation with long sludge retention time due to theinterception effect of the membrane; the residual sludge amount is reduced so that the sludge treatment cost can be reduced and operation of a sewage treatment technology is simplified; (3) equipmentis compacted and the occupied land is small; the sludge concentration in the bioreactor is high so that the volume load can be greatly improved and a secondary sedimentation tank and filtering equipment are replaced with a membrane assembly, so that compared with a conventional biological treatment technology, the occupied area of the bioreactor can be greatly reduced and the technology has a wide market prospect.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a biochemical treatment sewage transformation process. Background technique [0002] In the traditional process, after the sewage enters the grid--grit chamber--anaerobic tank--aerobic tank--sedimentation tank, the water quality is often not up to standard, the sludge production is increased, the water production rate is low, and the treated water cost increase. Nowadays, the biochemical system is combined with submerged ultrafiltration. After being filtered through inclined tubes, it enters the ultrafiltration device. Part of the water can be discharged after the water quality reaches the standard, and part of the water quality can be reused through the primary and secondary reverse osmosis systems. The point is that submerged ultrafiltration combines membrane technology with biochemical reactions in sewage treatment to treat high-concentration wastewater with a COD of 500-1000m...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/441C02F1/444C02F3/1268C02F3/30C02F9/00C02F2001/007C02F2301/08
Inventor 于宗然高香瑞于佳月张立军李振林刘庆奎凌广运张永梅
Owner 沧州泓阳环保科技有限公司
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