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Composite biological preparation for treating domestic sludge, preparation method and treatment method thereof

A technology of biological preparations and domestic sludge, which is applied in the field of compound biological preparations and preparations for domestic sludge treatment, and can solve the problems of low calorific value of combustibles, environmental pollution, and the inability to eliminate the hazards of pollutants such as heavy metals

Inactive Publication Date: 2019-08-06
成都市锦鑫汇生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Municipal domestic sludge contains various pathogenic bacteria, insect eggs, heavy metals and other harmful substances, and emits a strong stench. Using municipal sludge as farmland fertilizer will directly cause serious environmental pollution. Even if the method of composting is used to treat urban life Although sludge can reduce the hazards of various pathogenic bacteria, insect eggs and other biological substances, it still cannot eliminate the hazards of heavy metals and other pollutants
Municipal domestic sludge is incinerated, but the calorific value of the combustible substances in the sludge is low. Using incineration to treat municipal sludge will consume a lot of energy, and harmful substances will inevitably be produced during the incineration process, which will cause secondary pollution to the environment. Pollution

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  • Composite biological preparation for treating domestic sludge, preparation method and treatment method thereof
  • Composite biological preparation for treating domestic sludge, preparation method and treatment method thereof
  • Composite biological preparation for treating domestic sludge, preparation method and treatment method thereof

Examples

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Effect test

Embodiment 1

[0024] A composite biological preparation for treating domestic sludge, consisting of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia; wherein, the weight ratio of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia is 22 :15:10.

[0025] The preparation method of the above-mentioned composite biological preparation for treating domestic sludge comprises: inoculating Arthrobacter and Stenotrophomonas maltophilia into LB liquid medium for activation respectively, and then inoculating the activated bacterial liquid into the fermenter Carry out expanded culture, when the bacterial strain after expanded culture is in the stable growth period, finish fermentation, then mix the fermented liquid according to the above ratio, the total number of bacteria in the mixed fermented liquid is greater than 5×10 9 individual / mL.

[0026] The method for treating domestic sludge with the above-mentioned compound biological agent includes: laying the sludge in the treatment ta...

Embodiment 2

[0028] A compound biological preparation for treating domestic sludge, consisting of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia; wherein, the weight ratio of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia is 26 :20:14.

[0029] The preparation method of the above-mentioned composite biological preparation for treating domestic sludge comprises: inoculating Arthrobacter and Stenotrophomonas maltophilia into LB liquid medium for activation respectively, and then inoculating the activated bacterial liquid into the fermenter Carry out expanded cultivation, when the bacterial strain after the expanded cultivation is in the stable growth period, finish the fermentation, then mix the fermented liquid according to the above ratio, the total number of bacteria in the mixed fermented liquid is greater than 5×10 9 individual / mL.

[0030] The method for treating domestic sludge with the above-mentioned compound biological preparation includes: laying the sludg...

Embodiment 3

[0032] A compound biological preparation for treating domestic sludge, consisting of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia; wherein, the weight ratio of Alcaligenes, Arthrobacter and Stenotrophomonas maltophilia is 25 :18:12.

[0033]The preparation method of the above-mentioned composite biological preparation for treating domestic sludge comprises: inoculating Arthrobacter and Stenotrophomonas maltophilia into LB liquid medium for activation respectively, and then inoculating the activated bacterial liquid into the fermenter Carry out expanded culture, when the bacterial strain after expanded culture is in the stable growth period, finish fermentation, then mix the fermented liquid according to the above ratio, the total number of bacteria in the mixed fermented liquid is greater than 5×10 9 individual / mL.

[0034] The method for treating domestic sludge with the above-mentioned compound biological agent includes: laying the sludge in the treatment tank...

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Abstract

The invention discloses a composite biological preparation for treating domestic sludge, a preparation method and a treatment method thereof. The composite biological preparation comprises: alcaligenes, arthrobacter, and stenotrophomonas maltophilia; wherein the weight ratio of alcaligenes, arthrobacter, and stenotrophomonas maltophilia is 22-26: 15-20:10-14. The method combines specific strains together, and can effectively decompose organic substances in the sludge after being treated for a certain period of time under normal temperature conditions, and stabilizes the sludge after standing for a certain period of time, which can effectively remove ammonia and H2S from the sludge, removes the foul odor in the sludge, and releases most of the moisture in the sludge in a short time, the treated sludge can be used as a soil amendment, an organic fertilizer, and the like, can be directly used for planting crops without affecting the growth and development of crops, and does not affect thequality of crops.

Description

technical field [0001] The invention relates to the technical field of domestic sludge treatment, in particular to a composite biological preparation for treating domestic sludge, a preparation method and a treatment method. Background technique [0002] In recent years, my country's sewage treatment has achieved unprecedented development. Sewage treatment plants have played a huge role in solving my country's water pollution problems, and have alleviated the crisis of my country's water pollution to a large extent. However, the problem of sludge produced by sewage treatment plants has become increasingly prominent, which has aroused great concern from all walks of life. Government departments and experts in the environmental protection field are also taking active countermeasures to solve the increasingly serious sludge pollution problem. [0003] Commonly used sludge treatment methods at home and abroad include surface disposal, sanitary landfill, ocean release, composting...

Claims

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Application Information

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IPC IPC(8): C12N1/20C02F11/02C02F11/12C02F101/10C02F101/16C02F101/20C02F101/30C12R1/05C12R1/06C12R1/01
CPCC02F11/02C02F11/12C02F2101/101C02F2101/105C02F2101/16C02F2101/20C02F2101/30C02F2303/02C12N1/20
Inventor 吴堃陈永林吴寅钱鹏
Owner 成都市锦鑫汇生物科技有限公司
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