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 recycling of up-to-standard discharge water, which can solve the problems of waste of water resources, failure to meet the requirements of reuse for flushing fences, and large amount of bacteria.

Inactive Publication Date: 2015-04-15
湖北特微生物环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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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

[0035] Example 1: As shown in the figure, is the basic embodiment of the present invention. A method for treating livestock and poultry breeding wastewater and biogas slurry, comprising the steps of:

[0036] 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;

[0037] 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;

[0038] 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, and ...

Embodiment 2

[0040] Example 2: Such 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 enhanced treatment pond 4.1 for intensive treatment, and the biogas slurry is strengthened in the pond. The treatment is to eliminate biogas slurry pollutants and cultivate activated sludge including microbial inoculum; the inoculum used is mainly a combination of at least two kinds of Bacillus subtilis, nitrifying bacteria, denitrifying bacteria and lactic acid bacteria; inoculum The dosage is connected to the treatment pool according to the inoculation amount of 1%-10%; 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;

[0041] In this embodiment,...

Embodiment 3

[0042] Example 3: is yet another further preferred embodiment. The difference from Example 2 is: during the enhanced treatment in SBR microbial enhanced treatment tank 4.1, the temperature of the liquid in the SBR microbial enhanced treatment tank is controlled at 15-35°C, and the residence time is 2-3 days. The treatment process includes a liquid intake time of 0.5 hours , the aeration time is 4.5 hours, the sedimentation 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 method for treating livestock and poultry breeding wastewater and biogas slurry and a recycling method. Treatment method steps: A. Biogas slurry preparation and storage: use conventional methods to treat the sewage from livestock and poultry houses through anaerobic reaction system and then input it into the biogas slurry storage tank for storage; B. Biogas slurry adjustment: transport the biogas slurry in the biogas slurry storage tank To the biogas slurry adjustment tank for sedimentation separation and / or removal of suspended solids in the biogas slurry; C. Biological treatment of biogas slurry: output the regulated biogas slurry in the biogas slurry adjustment tank for biogas slurry up-to-standard discharge treatment, or another way Mixed bacterial treatment. The recycling method is to add a reuse water disinfection storage tank after the biogas slurry is discharged to meet the standard, or connect a branch after a biogas slurry biological treatment tank to output to the by-product treatment tank. The advantages of the present invention are: the microbial bacterial agent is combined with the sewage aerobic treatment process to quickly decompose pollutants, decolorize and deodorize, realize discharge up to the standard, and can also be comprehensively utilized. It is energy-saving, low-cost, and easy to popularize and apply. method.

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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Patent Type & Authority Patents(China)
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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