Zero-discharge combination process for livestock and poultry breeding sewage

A combined process, livestock and poultry breeding technology, applied in the field of livestock and poultry breeding sewage treatment, can solve the problems of overwhelmed breeding enterprises or individuals, lack of environmental protection technology and technology, investment waste, etc., to achieve targeted selection and improve biodegradation. Speed, the effect of reducing project cost

Inactive Publication Date: 2019-11-12
HAINAN CHENGTAI ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This low-efficiency process is still being used in engineering design, causing a huge waste of investment, and the breeding enterprises or individuals are overwhelmed
[0003] With the deteriorating ecological environment, the government has introduced powerful administrative regulations; effectively curbing environmental pollution, but there is still a relatively lack of environmental protection technology

Method used

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  • Zero-discharge combination process for livestock and poultry breeding sewage
  • Zero-discharge combination process for livestock and poultry breeding sewage
  • Zero-discharge combination process for livestock and poultry breeding sewage

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1, a kind of livestock and poultry breeding sewage zero-discharge combined process proposed by the present invention is applied to slaughterhouse wastewater treatment, the experimental process is as follows:

[0030] Type of wastewater: slaughter wastewater;

[0031] Location: a slaughterhouse

[0032] Device processing capacity: 60L / h

[0033] In addition to pig feces, there are pig viscera in the slaughter wastewater, resulting in a higher COD concentration than conventional slaughter wastewater. Pretreatment of slaughter wastewater is the first key treatment link. Pretreatment includes filter tank filtration + flocculation sedimentation, after filtering in the filter tank , there is no visible suspended matter in the wastewater, the water color is light yellow, and the pH value is 7.5. The flocculant is FeO2.

[0034] Obligate bacteria inoculation operation

[0035] A. Addition amount of inoculum After activation, the obligate bacteria liquid and nutrie...

Embodiment 2

[0051] Embodiment 2, a kind of livestock and poultry breeding sewage zero-discharge combined process proposed by the present invention is applied to pig farm wastewater treatment, the experimental process is as follows:

[0052] Wastewater type: Pig flushing waste water;

[0053] Location: a pig farm

[0054] Device processing capacity: 10m 3 / d (belongs to dry manure)

[0055] Pig farms use dry and clean manure to wash pens, and the waste water is rich in pig excrement. The data are as follows:

[0056]

[0057]

[0058]On the 13th day after 12 days of operation, the water intake starts, and the amount of water intake is as follows:

[0059]

[0060] The dosing position of the microbial strains in the table: the seeding period (first day) is added to the water inlet of the biological aerated filter, and the maintenance period (after the third day) is also added to the water inlet of the biological filter; Agent activation method: Dissolve the product at a rate of...

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Abstract

The invention discloses a zero-discharge combination process for livestock and poultry breeding sewage. The zero-discharge combination process comprises the following steps that sewage is subjected tode-solidification pre-treatment, specifically, flushing sewage is introduced into a rolling sieve, the flushing sewage is subjected to solid-liquid separation through the centrifugal force of the rolling sieve and a screen of the rolling sieve, filtration treatment is performed, specifically, the sewage after de-solidification is sequentially filtered through a first filter and a second filter, anaerobic treatment is performed, specifically, the secondary filtered sewage is introduced into a fixed bed biological anaerobic reaction device, and an obligate ammonia addicting bacteria is added tothe fixed bed biological anaerobic reaction device to remove phosphorus from the sewage. The zero-discharge combination process effectively prevents the loss of biological bacteria, improves the biodegradation rate, shortens the reaction time and reduces the engineering cost, and the obligate bacteria come from the environment of the project, professionalism and adaptability are high, and targeted selection of strains for biological systems is realized.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding sewage treatment, in particular to a zero-discharge combination process of livestock and poultry breeding sewage. Background technique [0002] In the 21st century, my country's environmental protection technology has developed by leaps and bounds, and some breakthroughs have been made in the treatment of industrial wastewater by biological methods. However, the research and development of bacterial agents and bioreactors are relatively lagging behind, and biological treatment facilities with huge structures and high investment and low efficiency are still used. For example, for pig flushing wastewater, the technical guidelines stipulate that the hydraulic retention time of anaerobic is 20 to 30 days. According to this regulation, the effective volume of anaerobic structures should be 20 to 30 times larger than the treated water. If the calculation is based on the daily tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/38C02F101/10C02F101/16C02F103/20
CPCC02F9/00C02F1/001C02F1/38C02F3/28C02F3/2853C02F2209/08C02F2209/14C02F2209/16C02F2103/20C02F3/34C02F2101/105C02F2101/16
Inventor 冯世骥
Owner HAINAN CHENGTAI ENVIRONMENT ENG
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