Method for quickly culturing activated sludge of live pig farming sewage

A technology for aquaculture sewage and activated sludge, which is applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of complicated treatment steps, achieve faster cultivation, high efficiency, Simple operation effect

Active Publication Date: 2017-11-10
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The processing steps of this method are relatively complicated...

Method used

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Embodiment 1

[0016] A method for rapidly cultivating activated sludge of swine breeding sewage, comprising preparation of bacterium, dilution of sewage, addition of nutrients, inoculation of bacterium and aeration treatment. The above-mentioned operation is simple, and has the advantages of low cost, no pollution, high efficiency, and easy realization.

[0017] The step of preparing the bacterial agent is to mix the functional microorganisms Enterobacter cloacae and Pseudomonas stutzeri in a weight ratio of 1:1.6 to form a bacterial agent, Enterobacter cloacae, the preservation number is CCTCC NO: M 2017219; Pseudomonas stutzeri, The deposit number is CCTCC NO:M 2017218. The above-mentioned bacterial agents have adsorption activity for heavy metals and antibiotics, thereby reducing the content of heavy metals and antibiotics in aquaculture sewage, promoting the growth of beneficial microorganisms in activated sludge, and greatly shortening the cultivation period of traditional aerobic slud...

Embodiment 2

[0023] A method for rapid cultivation of pig breeding sewage activated sludge, comprising the following steps:

[0024] 1) Preparation of bacterial agent: Mix the functional microorganisms Enterobacter cloacae and Pseudomonas stutzeri at a weight ratio of 1:2 to form a bacterial agent. Among them, Enterobacter cloacae, the preservation number is CCTCC NO: M 2017219; Pseudomonas stutzeri, the preservation number is CCTCC NO: M2017218;

[0025] 2) Dilute sewage: mix pig breeding sewage and deep well water in the aeration tank at a weight ratio of 1:8;

[0026] 3) Add nutrients: add 1% of starch slurry and urea in the diluted sewage;

[0027] 4) Bacteria inoculation: inoculate a mixed bacterial agent with a volume ratio of 0.8% in the sewage treatment biochemical treatment tank, and aerate for 24 hours under aerobic conditions; the volume ratio of aerobic aeration to water inflow is controlled at 15:1;

[0028] 5) Aeration treatment: add aerobic activated sludge with a mass rat...

Embodiment 3

[0030] A method for rapid cultivation of pig breeding sewage activated sludge, comprising the following steps:

[0031]1) Preparation of bacterial agent: Mix the functional microorganisms Enterobacter cloacae and Pseudomonas stutzeri in a weight ratio of 1:1 to form a bacterial agent. Among them, Enterobacter cloacae, the preservation number is CCTCC NO: M 2017219; Pseudomonas stutzeri, the preservation number is CCTCC NO: M2017218;

[0032] 2) Dilute sewage: mix pig breeding sewage and deep well water in the aeration tank at a weight ratio of 1:10;

[0033] 3) Add nutrients: add 1% by mass canteen rice swill, sulfur ammonia and ammonia water to the diluted sewage;

[0034] 4) Bacteria inoculation: Inoculate a mixed bacterial agent with a volume ratio of 0.8% in the sewage treatment biochemical treatment tank, and aerate for 24 hours under aerobic conditions; the volume ratio of aerobic aeration to water inflow is controlled at 20:1;

[0035] 5) Aeration treatment: add aerob...

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Abstract

The invention discloses a method for quickly culturing activated sludge of live pig farming sewage. The method comprises the steps of microbial inoculum preparation, sewage dilution, addition of nutrient substances, microbial inoculum inoculation and aeration. The method has the advantages that the operation is very simple, the number of required devices is small, the cost is low, no pollution is caused, the efficiency is high, and the method is easy to implement. The live pig farming sewage is treated by using the enterobacter cloacae with the function microbial preservation number of CCTCC NO:M 2017219 and the pseudomonas stutzeri with the preservation number of CCTCC NO:M 2017218, heavy metals and antibiotics in the sewage are removed, a good environment is provided for the growth and propagation of beneficial bacteria in the activated sludge, the culture speed of the activated sludge is increased, and the initial inoculum dosage of the sludge in traditional activated sludge culture can be decreased by 50% or above.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for rapid cultivation of activated sludge in swine breeding sewage. Background technique [0002] According to relevant literature reports, the former State Environmental Protection Administration conducted a sample survey on the pollution status of large-scale livestock and poultry farming in 23 provinces (regions) and cities across the country, and found that the production of livestock and poultry manure and sewage in the country exceeded 20 billion tons, which is industrial solid waste. The chemical oxygen demand (COD) of livestock and poultry manure far exceeds the sum of the COD discharge of industrial wastewater and domestic sewage in my country. Livestock and poultry breeding pollution has become the third largest pollution source after industrial pollution and domestic pollution, and has become one of the main causes of agricultural surface pollution in ...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/02C02F103/20C02F101/20C02F101/30
CPCC02F3/02C02F3/34C02F3/348C02F2101/20C02F2101/30C02F2103/20C02F2209/38C02F2209/44C02F2305/06Y02W10/10
Inventor 孙宏汤江武吴逸飞王新姚晓红李园成
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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