Methods of Water Pollution Control in Slaughterhouses

A slaughterhouse and water pollution technology, applied in the field of slaughterhouse water pollution control, can solve the problems of affecting the treatment effect, hypoxia death, etc., and achieve the effects of saving electric energy and device costs, improving the degradation rate, and reducing the death of microorganisms due to hypoxia

Active Publication Date: 2020-12-25
邳州泰利恒商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Slaughter wastewater contains a lot of oil, and oil will block the dissolved oxygen in the atmosphere from entering the water body. During the treatment process, the oil will also wrap around the microorganisms, causing them to die due to lack of oxygen, which will affect the treatment effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for controlling water pollution in an abattoir, comprising the following steps:

[0022] (1) Sewage collection: Collect the sewage from the slaughterhouse and introduce it into the grease trap together. Put the slick oil and bottom sludge separated from the grease trap into the grease hydrolysis tank. The waste water is discharged into the sewage treatment tank;

[0023] (2) Sewage treatment in the sewage treatment tank: 1) Add alum in the sewage treatment tank, let it stand for 2 hours to remove impurities, and obtain the primary filtrate; 2) introduce the primary filtrate into the active sand filter to filter and remove impurities, and obtain Secondary filtrate; 3) Discharge the secondary filtrate into the multi-level biomimetic oxidation ditch, the sewage in the multi-level biomimetic oxidation ditch through the baffle ditches and the natural vertical flow method, fully dissolved and oxygenated, and its retention The period is 4 days to degrade organic matt...

Embodiment 2

[0027] A method for controlling water pollution in an abattoir, comprising the following steps:

[0028] (1) Sewage collection: Collect the sewage from the slaughterhouse and introduce it into the grease trap together. Put the slick oil and bottom sludge separated from the grease trap into the grease hydrolysis tank. The waste water is discharged into the sewage treatment tank;

[0029] (2) Sewage treatment in the sewage treatment tank: 1) Add alum into the sewage treatment tank, let it stand for 4 hours to remove impurities, and obtain the primary filtrate; 2) introduce the primary filtrate into the active sand filter to filter and remove impurities, and obtain Secondary filtrate; 3) Discharge the secondary filtrate into the multi-level biomimetic oxidation ditch, the sewage in the multi-level biomimetic oxidation ditch through the baffle ditches and the natural vertical flow method, fully dissolved and oxygenated, and its retention The period is 5 days to degrade organic ma...

Embodiment 3

[0033] A method for controlling water pollution in an abattoir, comprising the following steps:

[0034] (1) Sewage collection: Collect the sewage from the slaughterhouse and introduce it into the grease trap together. Put the slick oil and bottom sludge separated from the grease trap into the grease hydrolysis tank. The waste water is discharged into the sewage treatment tank;

[0035](2) Sewage treatment in the sewage treatment tank: 1) Add alum in the sewage treatment tank, let it stand for 3 hours to remove impurities, and obtain the primary filtrate; 2) introduce the primary filtrate into the active sand filter to filter and remove impurities, and obtain Secondary filtrate; 3) Discharge the secondary filtrate into the multi-level biomimetic oxidation ditch, the sewage in the multi-level biomimetic oxidation ditch through the baffle ditches and the natural vertical flow method, fully dissolved and oxygenated, and its retention The period is 4.5 days to degrade organic mat...

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PUM

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Abstract

The invention provides a method for controlling water pollution in a slaughterhouse. The method comprises the following steps: wastewater treated by an oil separating pond is discharged into a sewagetreatment pond, the sewage is treated firstly through an adsorption impurity-removing method to obtain a primary filtrate, the primary filtrate is introduced into an active sand filter for filtering and removing impurities to obtain a secondary filtrate, the secondary filtrate is discharged into a multi-stage ecology-imitating oxidation ditch for treatment to obtain a tertiary filtrate, and finally the tertiary filtrate is introduced into a multi-stage artificial geological rapid infiltration system to make water reach a discharge standard. The method provided by the invention has high sewagetreatment efficiency, and the regenerated and reduced sewage can be recycled; an appropriate amount of an additive is added into a grease hydrolysis pond, and the additive can increase a dissolved oxygen amount in the grease hydrolysis pond and prevents the dissolved oxygen in a grease barrier atmosphere from entering a water body; and the additive has a porous structure and provides a good growthenvironment for microorganisms, can reduce microbial hypoxia death caused by wrapping of oil, and greatly improves a degradation rate of grease.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a method for controlling water pollution in slaughterhouses. Background technique [0002] Slaughtering industry is one of the pillar industries for earning foreign exchange through export and ensuring supply in my country. Slaughtering wastewater comes from livestock, poultry, and fish slaughtering and processing, and is one of the largest sources of organic pollution in my country. According to the survey, the discharge of slaughtering wastewater accounts for about 6% of the national industrial wastewater discharge. With the development of the economy and the improvement of people's living standards, the meat food processing industry will have greater development. The pollution of slaughtering wastewater is still high. growing trend. Slaughter wastewater is reddish brown, has a fishy smell, and contains a lot of grease, blood, fur, broken bones, hoof horns and internal organs. COD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/34C02F103/22
CPCC02F1/001C02F1/40C02F3/02C02F3/343C02F3/347C02F9/00C02F2001/007C02F2101/34C02F2103/22
Inventor 潘培连翟明来
Owner 邳州泰利恒商贸有限公司
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