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Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry

A technology for the treatment of livestock and poultry breeding wastewater and biogas slurry, which is applied in the field of harmless treatment and the recycling and utilization of discharge water that meets the standards, and can solve the problems of difficulty in large-scale popularization, inability to meet the requirements of reuse and flushing, and high cost.

Inactive Publication Date: 2013-12-18
湖北特微生物环保有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The ultimate goal of the above-mentioned patents is to meet the discharge standards, but cannot realize the decolorization, deodorization, and disinfection of the biogas slurry, and cannot meet the requirements for reuse of flush fences, resulting in a lot of waste of water resources; Large, high cost, difficult to promote on a large scale

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  • Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry
  • Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry
  • Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry

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Embodiment 1

[0036] Embodiment 1: As shown in the figure, it is the basic embodiment of the present invention. A method for treating livestock and poultry breeding wastewater and biogas slurry, comprising the steps of:

[0037] A. Preparation and storage of biogas slurry: the livestock and poultry house sewage is treated by the anaerobic reaction system 1 by conventional methods and then input into the biogas slurry storage tank 2 for storage;

[0038] B. Biogas slurry adjustment: transport the biogas slurry in the biogas slurry storage tank 2 to the biogas slurry adjustment tank 3 for sedimentation and separation and / or remove suspended matter in the biogas slurry;

[0039] C. Biological treatment of biogas slurry: output the regulated biogas slurry in the biogas slurry adjustment pond 3 to carry out the biogas slurry up-to-standard discharge treatment in step C1 (such as figure 1 , 2 ), or output one way to carry out the biogas slurry up-to-standard discharge treatment of the step C1, ...

Embodiment 2

[0041] Embodiment 2: as figure 1 Shown is a preferred embodiment. On the basis of Example 1, it is specific: the biogas slurry in the step C1 reaches the standard discharge treatment is: the biogas slurry regulated by the biogas slurry adjustment pond 3 is transferred to the SBR microbial enhancement pond 4.1 for enhanced treatment, and the enhanced treatment is carried out in the pond It is a microbial enhancement treatment for eliminating biogas slurry pollutants and cultivating activated sludge including microbial agents; the agent used is mainly a combination of at least two types of Bacillus subtilis, nitrifying bacteria, denitrifying bacteria and lactic acid bacteria; the amount of agent used According to the inoculation amount of 1%-10%, it is connected to the treatment pool; the bacterial content of the bacterial agent is 1×10 6 -1×10 12 After cfu / g, there is no need for long-term bacterial injection, only a small amount of regular supplementation is required;

[00...

Embodiment 3

[0043] Embodiment 3: is yet another further preferred embodiment. The difference from Example 2 is that during the enhanced treatment in SBR microbial enhanced pool 4.1, the temperature of the liquid in the SBR microbial enhanced pool is controlled at 15-35°C, and the residence time is 2-3 days. The aeration time is 4.5 hours, the precipitation time is 2.5 hours, and the discharge time is 0.5 hours; the treatment process runs 3 times a day, and the liquid dissolved oxygen in the pool is controlled at 2-5mg / L during aeration.

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Abstract

The invention relates to a treatment method and a recycling method of livestock and poultry breeding wastewater and biogas slurry. The treatment method comprises the steps of: A. preparation and storage of biogas slurry, i.e., treating livestock and poultry house wastewater by an anaerobic reaction system through a conventional approach and storing the treated wastewater in a biogas slurry tank; B. treatment of biogas slurry, i.e., conveying the biogas slurry from the biogas slurry tank into a biogas slurry adjusting tank to separate precipitation and / or remove suspended solids from the biogas slurry; and C. biological treatment of biogas slurry, i.e., discharging the biogas slurry which is treated in the biogas slurry adjusting tank and achieves standards, or treating the biogas slurry in another path by a mixed bacteria agent. The recycling method comprises the step of adding a reuse water disinfecting storage tank after the standardized discharge of biogas slurry, or at the back of a biogas slurry biological-treatment tank, connecting a branch for outputting to a by-product treatment tank. The treatment method and the recycling method have the advantages of combining a microbial agent with an aerobic treatment technology of wastewater, rapidly decomposing, decoloring and deodorizing pollutants, achieving the effects of standardized discharge, comprehensive utilization, energy conservation, discharge reduction and low cost, and being easy to popularize and apply.

Description

technical field [0001] The invention relates to a treatment method and a recycling method for livestock and poultry breeding wastewater and biogas slurry, in particular to the harmless treatment of wastewater and biogas slurry and the recycling and utilization of standard discharge water. Background technique [0002] The rapid development, large-scale and intensive livestock and poultry breeding industry concentrates and discharges a large amount of wastewater and biogas slurry with high concentration, which is an important pollution source that cannot be ignored. [0003] One of the existing technologies for solving waste water and biogas slurry pollution is a biogas treatment project. It is to form biogas slurry after anaerobic fermentation of manure and sewage from livestock and poultry breeding, which has successfully solved some problems in wastewater and biogas slurry treatment, but there are still the following problems: biogas slurry contains more nutrients and Fac...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/34C02F103/20
Inventor 梁运祥葛向阳陈正军柯雪佳吴定心余薇俞快罗小峰彭冲
Owner 湖北特微生物环保有限公司
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