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Cleaning type integrated effluent disposal system and operation method

A sewage treatment system and sewage treatment technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Pollutants, poor system operation and adjustment performance, etc., to improve the effect of sludge reduction, eliminate adverse effects, and save energy

Active Publication Date: 2007-03-07
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the secondary sedimentation tank is built in the circulation channel, which increases the water flow resistance and energy consumption; at the same time, the requirements for aeration equipment are increased; the system operation adjustment performance is poor
However, it cannot handle high concentrations of pollutants, nor is it suitable for treating hydrophobic pollutants in exhaust gas.
The common defect of these three types of waste gas biological treatment equipment is that it is difficult to effectively remove the waste gas mixed with various pollutants with large water solubility and different concentrations by relying on the above-mentioned single treatment equipment

Method used

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  • Cleaning type integrated effluent disposal system and operation method
  • Cleaning type integrated effluent disposal system and operation method
  • Cleaning type integrated effluent disposal system and operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] The average water quality characteristics of the sewage in the example of using the integrated sewage treatment system to treat domestic sewage are as follows: pH is 7.2, COD is 628mg / l, BOD 5 257mg / l, NH 3 -N is 59.1mg / l, TN is 79.4mg / l, TP is 4.mg / l 6, the intake concentrations of acetic acid, ammonia, hydrogen sulfide, ethanethiol, ethyl sulfide and styrene are: 8.88mg / m 3 , 8.93mg / m 3 , 0.025mg / m 3 , 0.18mg / m 3 , 0.081mg / m 3 and 36.69mg / m 3 ,

[0081] The sewage is pumped into the three-dimensional circulation integrated oxidation ditch sewage treatment reaction zone, and the treated sewage is discharged. The temperature of the three-dimensional integrated oxidation ditch changes with the seasons, but it is maintained at 12-27°C; the pH of the oxidation ditch mixture is maintained at 6.5-7.5 by adding NaHCO3 solution; the treatment capacity of the vertical-flow composite biological sludge reactor is reduced To control the SRT in 30-40 days; the sludge conce...

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Abstract

The invention relates to cleaning integration sewage treatment system comprises cubic cycle oxidation channel sewage treatment reaction zone to remove organic pollutant, ammonia nitrogen, and suspended solid, vertical flow composite biological sludge decrement reaction zone to decrease sludge from super zone by protozoan or metazoan, and biological deodorization reaction zone to remove hydrophilic and hydrophobic odor material from super zone by fungi and bacteria, with volume proportion as 100-200: 2-10: 1. This invention has well treatment effect to a plurality of sewage, and has floor area decreases 50% compared with traditional method.

Description

technical field [0001] The invention belongs to equipment for treating sewage and excess sludge and odor generated in the process of sewage treatment by using biological technology, in particular to an integrated system of sewage treatment, excess sludge reduction and odor gas purification and its operation method. Background technique [0002] Sewage treatment generally faces the problems of land shortage and secondary pollution of the environment caused by excess sludge, stench, and toxic volatile organic waste gas; the treatment and disposal of sludge and waste gas will increase the land occupation and sewage treatment costs. In large sewage plants, residual sludge is generally treated by digestion and biogas is recycled. In recent years, some research work has also begun on stench and volatile organic waste gas. However, in small and medium-sized sewage treatment, expensive land, shortage of funds and backward technology have seriously restricted the treatment of excess ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F3/10C02F3/12
CPCY02W10/10
Inventor 刘俊新郭雪松魏源送李琳
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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