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Culture method of aerobiotic active sludge

A cultivation method and technology of oxygen activity, applied in the cultivation field of aerobic activated sludge, can solve the problems of flocculent sludge with low degree of sludge granulation, difficult formation of aerobic granular sludge, long formation time, etc., to achieve Effects of improved capacity, shortened formation time, and high degree of granulation

Active Publication Date: 2016-03-23
重庆清禧环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problems mainly solved by the present invention are as follows: the formation of aerobic granular sludge is not easy and the formation time is too long, and in the process of traditional aerobic cultivation, the degree of sludge granulation is not high, contains a large amount of flocculent sludge, and The disadvantage of relatively poor treatment capacity provides an aerobic activated sludge cultivation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] First, put 10% fresh moss into the septic tank, stir evenly, seal the septic tank, carry out anaerobic fermentation treatment, control the temperature at 30°C, and ferment for 8 days, so that the moss in the septic tank turns yellow and black; Then in parts by weight, select 5 parts of trypsin, 20 parts of agar, 20 parts of inositol and 15 parts of yeast, stir and mix to form a medium, then add 200 mL of deionized water to adjust the pH to 6.0; after that, adjust the pH After that, the temperature was raised to 130°C for sterilization, and microbial culture medium was prepared after 20 minutes; next, the sludge containing aerobic denitrifying bacteria, phosphorus-accumulating bacteria, filamentous bacteria and nitrifying bacteria was mixed according to the inoculum ratio of 1:1 : 1:1 inoculated into the above microbial culture medium, adjust the temperature to 18°C, and culture it statically for 10 hours. After the culture is completed, place it in a centrifuge, centrifu...

example 2

[0024]Firstly, fresh moss with 13% of the tank capacity is put into the septic tank, after stirring evenly, the septic tank is sealed, and anaerobic fermentation is carried out, the temperature is controlled at 40°C, and the fermentation is carried out for 12 days, so that the moss in the septic tank turns yellow and black; Then in parts by weight, select 10 parts of trypsin, 30 parts of agar, 45 parts of inositol and 18 parts of yeast, stir and mix to form a medium, then add 250 mL of deionized water to adjust the pH to 6.2; after that, adjust the pH After that, the temperature was raised to 140°C for sterilization, and microbial culture medium was prepared after 25 minutes; next, the sludge containing aerobic denitrifying bacteria, phosphorus-accumulating bacteria, filamentous bacteria and nitrifying bacteria was mixed according to the inoculum ratio of 1:1 : 1:1 inoculated into the above microbial culture medium, adjusted the temperature to 25°C, and cultured for 13 hours. A...

example 3

[0027] First put 15% fresh moss in the septic tank, after stirring evenly, seal the septic tank, carry out anaerobic fermentation treatment, control the temperature at 50°C, and ferment for 15 days, so that the moss in the septic tank turns yellow and black; Then in parts by weight, select 15 parts of trypsin, 40 parts of agar, 65 parts of inositol and 20 parts of yeast, stir and mix to form a medium, then add 300 mL of deionized water to adjust the pH to 6.3; after that, adjust the pH After that, the temperature was raised to 150°C for sterilization, and the microbial culture medium was prepared after 30 minutes; next, the sludge containing aerobic denitrifying bacteria, phosphorus-accumulating bacteria, filamentous bacteria and nitrifying bacteria was mixed according to the inoculum ratio of 1:1 : 1:1 inoculated into the above-mentioned microbial culture medium, adjusted the temperature to 28°C, and cultured for 15 hours. , leaving the mixed strain sludge; then put the mixed...

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Abstract

The invention discloses a culture method of aerobiotic active sludge, and belongs to the technical field of sludge culture. The method includes the steps that firstly, fresh moss is introduced into a septic tank, and anaerobic fermentation is performed till the moss turns yellow and black; secondly, cultured biological bacteria are introduced into the septic tank after fermentation, so that the surface of the fermented matter is covered with a layer of white hyphae and is in a slurry state; thirdly, kieselguhr is introduced into wastewater, stuffy exposure treatment is performed, then the prepared fermented matter in the slurry state is put into the wastewater, stuffy exposure treatment is performed again, and the faint yellow active sludge can be obtained. As proved by the embodiment, the formation time of the aerobiotic granular sludge is shortened by 80-85%; besides, the prepared sludge is high in granulation degree, a large amount of flocculent sludge is avoided, and thus the capacity in the wastewater treatment process is significantly improved.

Description

technical field [0001] The invention discloses a method for cultivating aerobic activated sludge, which belongs to the technical field of sludge cultivation. Background technique [0002] Since the Eleventh Five-Year Plan, the state has stepped up efforts to control environmental pollution, especially in the restoration of the water environment. It has implemented a major national science and technology project - Water Pollution Control and Treatment. The figure will further increase to more than 14 billion yuan. This move is to solve the problem of water eutrophication caused by excessive discharge of nitrogen and phosphorus in recent years. According to the 2012 Environmental Status Bulletin, the surface water in the country is generally slightly polluted, the eutrophication of lakes is serious, and nitrogen and phosphorus are still the main pollutants. The total discharge of ammonia nitrogen in the country is 2.5 million tons, of which the discharge from industrial and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/12C02F2103/026Y02W10/10
Inventor 仇颖超张帆
Owner 重庆清禧环保科技有限公司
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