Method for treating sewage by adopting biological-physical combined method

A combined method, sewage technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, flotation water/sewage treatment, etc. Problems with high certainty, achieving the effect of low cost, short processing practice, and stable performance

Inactive Publication Date: 2011-07-20
YULIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high energy consumption, large investment, and complicated management of the above methods, the source of pollution has not been dealt with fundamentally and efficiently, and it has not been considered from the perspective of cherishing resources, improving resource utilization, turning waste into treasure, and recycling
Among them, in the biological treatment method, relying solely on sludge to bear a large load and water quality changes, the treatment effect is highly uncertain. The direct discharge of treated sewage and solid waste will waste a lot of resources. Therefore, other technologies must be sought. Realize the recycling and multi-level utilization of resources

Method used

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  • Method for treating sewage by adopting biological-physical combined method
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  • Method for treating sewage by adopting biological-physical combined method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a device for treating sewage by biological-physical combination method includes an air flotation filter tank 1, an adjustment tank 2, a fermentation decomposition tank 3, an aerated biological tank 4, and a product storage tank 5, and the above-mentioned tanks are connected to each other in turn.

[0031] The air flotation filter tank 1 is equipped with an air flotation filter device 14, and there are sludge 8 and microbial flora 10 inside. The tank is 1-3m away from the bottom and has a porous partition 11 connected with the adjustment tank 2; the adjustment tank 2 has a Microbial generating device 6; fermentation decomposition tank 3 communicates with adjustment tank 2 and aeration tank 4 through porous partition (11); aeration tank 4 sends the final product into product storage without power through glass fiber non-woven filter plate 7 Retention pond 5; wherein sludge 8, microbial flora 10, volcanic rock 9 and aeration equipment 15 are dist...

Embodiment 2

[0033] A method for treating sewage by a biological-physical combination method, comprising the following steps in sequence:

[0034] (1) The organic sewage is discharged into the air flotation filter tank 1, and the air flotation filter equipment 14 scrapes scum, discharges scum, and generates microbubbles, wherein the amount of microbial flora 10 in the sewage is 300-3000 mg / L, the process The COD removal rate is 5-20%. The preliminarily treated sewage is discharged into the adjustment tank (2) through the porous partition 11.

[0035] (2) The sewage flowing into the adjustment tank 2 will increase the oxygen in the sewage to 1-2.5 mg / L through the action of the air supply pipe 13, the sludge 8, the fan 12 and the aeration equipment 15, and regulate the microbial generation equipment The amount of microorganisms produced in the sewage is 3000-8000 mg / L. Through this process, 10-30% of COD is further removed under the conditions of step (1), wherein the hydraulic retention t...

Embodiment 3

[0051] Take a city-based agricultural and animal husbandry Development Co., Ltd. as an example, mainly engaged in the sausage casing processing heparin sodium production line and pig breeding. At present, the wastewater discharge during casing processing reaches 10-15m 3 / d, after analysis and determination, COD in wastewater ≥ 1500mg / L, BOD 5 ≥900mg / L, SS≥400mg / L, NH 3 -N ≥ 80mg / L, animal and vegetable oil ≥ 20mg / L, pH 8-10, organic matter content and NH in water 3 Many indicators, such as -N, far exceed the third-level standard of the national sewage discharge standard (GB8978-1996). Through the implementation of this equipment and process, the treatment of casing processing wastewater and pig manure and urine in the factory will be harmless; the stench in the air in the factory area and its surroundings will be basically eliminated, and the air quality will reach the second-level standard of the "Ambient Air Quality Standard"; The soil and groundwater pollution caused by...

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Abstract

The invention relates to a method for treating sewage by adopting a biological-physical combined method. The method comprises the following steps of: making organic sewage water pass through an air floatation filter tank, a regulating pond, a zymolysis pond, an aeration biological pond and a product retention basin; and fermenting the organic sewage under the actions of microflorae, sludge, volcanic rock and the air, decomposing, purifying and the like to produce biologically active water which can be recycled in the growing process of animals and plants. The system has the advantages of capability of realizing full-automatic control, easiness in operating, small technical investment, low sewage treatment cost, high sewage treatment efficiency and stable performance.

Description

technical field [0001] The invention relates to a method for treating sewage by a biological-physical combination method, in particular to a method for efficiently treating sewage formed by organically combining air flotation separation and microbial treatment. [0002] The organic polluted water that can be treated by the present invention is all kinds of organic polluted water except for a small number of organic polluted waters that have a strong toxicity inhibitory effect on microorganisms, including large-scale breeding plants, casing processing plants, urban organic sewage, and high-concentration catering industry sewage and slaughterhouses, etc. Background technique [0003] With the acceleration of urbanization, rapid economic growth and rapid population increase, in order to meet people's needs for material life, slaughterhouses, large farms, casing processing plants, and catering industries continue to increase in scale, which in turn leads to the discharge of orga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/24
Inventor 亢福仁朱铭强武治兴王润丰靳磊齐菊白森林王俊浩张恒
Owner YULIN UNIV
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