Method for comprehensively treating livestock waste and utilizing resource

A technology of comprehensive treatment and resources, applied in the field of comprehensive treatment of livestock and poultry waste and utilization of resources, can solve the problems of high energy consumption and waste of resources, etc.

Inactive Publication Date: 2010-05-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Traditional livestock and poultry waste treatment is usually aimed at p

Method used

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  • Method for comprehensively treating livestock waste and utilizing resource
  • Method for comprehensively treating livestock waste and utilizing resource
  • Method for comprehensively treating livestock waste and utilizing resource

Examples

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Comparison scheme
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Example Embodiment

[0022] Example 1: Combination figure 1 , figure 2 , The present invention is a method for comprehensive treatment and resource utilization of livestock and poultry waste, which is realized by a sewage treatment and resource utilization process and a solid waste treatment process.

[0023] The process flow of the sewage treatment and resource utilization process is as follows:

[0024] The first process flow: the manure water enters the regulating sump composed of a pump and a screen, the sieved residue enters the manure collection tank, and the dry manure also enters the manure collection tank. After the collection tank is processed, biological compost and biological compost are obtained Processed into granular fertilizer;

[0025] The second process flow: the liquid part of the manure water after adjusting the collection tank enters the hydrolysis acidification tank, and then enters the anaerobic digestion tank and then divided into two paths, one is biogas, the other is biogas sl...

Example Embodiment

[0030] Example 2: Combination figure 1 , figure 2 , The process flow of the present invention is described as follows:

[0031] 1. Description of wastewater treatment and resource recovery process flow:

[0032] 1. Pretreatment of wastewater:

[0033] Sewage flows into the sewage treatment station from the field area through the ditch pipe. The wastewater first passes through the grid to remove the straw and large suspended objects in the wastewater. The wastewater flows into the regulating tank by itself.

[0034] 2. Hydraulic screen:

[0035] The wastewater entering the sump is pumped into the hydraulic screen to further remove suspended objects and hairs in the wastewater, which is more conducive to anaerobic fermentation and avoids the blockage of the pipe network. The scum, etc. screened out by the hydraulic screen are concentrated into the manure collection tank for solid compost treatment.

[0036] 3. Hydrolysis and acidification of wastewater:

[0037] Due to the particularity ...

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Abstract

The invention provides a method for comprehensively treating livestock waste and utilizing resource, which is beneficial for reducing local water quality pollution, improving soil environment, improving ecological environment and promoting the sustainable development of agricultural production. The method is realized by a sewage treating and resource utilizing process and a solid waste treating process. The method for comprehensively treating the livestock waste and utilizing the resource, for a large-scale culturing farm, has the advantages of small sludge quantity, low operating cost and the like by adopting biogas fermentation and ecological combinative technology to treat sewage, has the advantages of economy, high efficiency and resource utilization by adopting composting technology to treat dejection garbage, solves partial production and living energies and living energy by adopting produced marsh gas to generate electricity so as to produce direct economic benefit, develops nuisanceless agricultural product bases and realizes agricultural efficiency by taking produced biogas residues and biogas liquid as nuisanceless organic fertilizers.

Description

(1) Technical field [0001] The invention relates to sewage treatment technology, in particular to a method for comprehensive treatment of livestock and poultry waste and resource utilization. (2) Background technology [0002] With the rapid development of animal husbandry, the concentrated production of livestock and poultry manure continues to increase. According to the survey, intensive farms account for a relatively large proportion of the total sewage discharge from livestock and poultry breeding in various places. The development of animal husbandry and the transformation of production methods have promoted agricultural efficiency and farmers' income, but at the same time, it has also brought about a large increase in livestock and poultry manure and sewage and concentrated discharge. [0003] Some harmful substances in feces, such as protein and fatty acid corruption products (also the constituent substances of feces stench), can dissolve in water, making the water s...

Claims

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Application Information

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IPC IPC(8): C05F3/00C02F11/04C02F3/32C02F3/28C05F15/00
CPCY02E50/343Y02A40/20Y02E50/30Y02W30/40
Inventor 陈志强温沁雪
Owner HARBIN INST OF TECH
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