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A kind of food industry wastewater treatment process

A technology of industrial wastewater and treatment process, which is applied in the fields of food industry wastewater treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of incomplete removal of nitrogen elements, incomplete sewage treatment, and water quality. , to achieve the effect of improving the flocculation capacity and the removal rate of dissolved organic matter

Active Publication Date: 2021-12-31
贵州鑫吉瑞环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned scheme has the following defects in use: only sodium carbonate is used to treat the nitrogen element in the sewage, the nitrogen element removal is not thorough, and the fishy smell in the waste water cannot be treated in addition, the sewage treatment is not thorough, which affects the water quality
The existing industrial wastewater treatment methods and systems in the food industry cannot economically and effectively treat large quantities of sewage discharged from the chemical industry

Method used

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  • A kind of food industry wastewater treatment process

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Effect test

Embodiment 1

[0029] A food industry wastewater treatment process, specifically according to the following steps: A. Primary filtration and sedimentation: First, the food industry wastewater flows through multiple grids, and then is discharged into a sedimentation tank, and flocculants are added for flocculation, and air is blown in, and then Carry out sedimentation treatment, promptly obtain the supernatant of industrial waste water; B, ultraviolet ray sterilization and adjust pH value: the industrial waste water supernatant described in step A is discharged into the acid-base adjustment pond, carries out sterilization and disinfection with ultraviolet light earlier, removes peculiar smell, then adjust its pH to 6.5 to obtain the industrial waste water after adjusting the pH value; The air pool uses anaerobic bacteria to decompose the macromolecular carbon source and macromolecular nitrogen source, and then passes it into the aerobic pool to use aerobic bacteria to decompose the small molec...

Embodiment 2

[0033] A food industry wastewater treatment process, specifically according to the following steps: A. Primary filtration and sedimentation: First, the food industry wastewater flows through multiple grids, and then is discharged into a sedimentation tank, and flocculants are added for flocculation, and air is blown in, and then Carry out sedimentation treatment, promptly obtain the supernatant of industrial waste water; B, ultraviolet ray sterilization and adjust pH value: the industrial waste water supernatant described in step A is discharged into the acid-base adjustment pond, carries out sterilization and disinfection with ultraviolet light earlier, removes peculiar smell, then adjust its pH to 5.5 to obtain the industrial waste water after adjusting the pH value; The air pool uses anaerobic bacteria to decompose the macromolecular carbon source and macromolecular nitrogen source, and then passes it into the aerobic pool to use aerobic bacteria to decompose the small molec...

Embodiment 3

[0037] A food industry wastewater treatment process, specifically according to the following steps: A. Primary filtration and sedimentation: First, the food industry wastewater flows through multiple grids, and then is discharged into a sedimentation tank, and flocculants are added for flocculation, and air is blown in, and then Carry out sedimentation treatment, promptly obtain the supernatant of industrial waste water; B, ultraviolet ray sterilization and adjust pH value: the industrial waste water supernatant described in step A is discharged into the acid-base adjustment pond, carries out sterilization and disinfection with ultraviolet light earlier, removes peculiar smell, then adjust its pH to 7.5 to obtain the industrial waste water after adjusting the pH value; The air pool uses anaerobic bacteria to decompose the macromolecular carbon source and macromolecular nitrogen source, and then passes it into the aerobic pool to use aerobic bacteria to decompose the small molec...

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Abstract

The invention discloses a process for treating waste water in the food industry. The operation steps are as follows: A. First, the waste water in the food industry flows through multiple grids, and then it is discharged into a sedimentation tank, and a flocculant is added for flocculation; B. It is discharged into an acid-base adjustment tank , first sterilize with ultraviolet rays, and then adjust its pH to 5.5-7.5; C, first pass into the anaerobic aeration tank, then pass into the aerobic tank, and then use the facultative membrane bioreactor for treatment, and then add the reducing agent , adopt activated carbon filtration process to carry out filtration treatment, and then carry out sedimentation treatment; D, adopt security filtration process, microfiltration membrane filtration process, ultrafiltration membrane filtration process, reverse osmosis membrane filtration process to carry out filtration treatment; Described flocculant includes chlorinated chlorinated Iron, oleic acid, xylan, rubber stock solution. The invention adopts xylan, rubber stock solution and oleic acid as the reinforcing system to improve the flocculation ability and the removal rate of dissolved organic matter in the waste water treatment process of the food industry.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a food industry wastewater treatment process. Background technique [0002] Slaughterhouse wastewater contains a large amount of pollutants such as blood, hair, broken bones, foot shells, discarded viscera, etc. The concentration of suspended solids is high, and the water is reddish-brown with an obvious fishy smell. It is a typical high-suspended solids that are easy to biodegrade Organic waste water. The discharged wastewater contains a large amount of organic matter, suspended solids, ammonia nitrogen and other pollutants. If it is not treated and directly discharged into natural water bodies, it will consume a large amount of dissolved oxygen in the water, causing the water body to turn black and smelly, resulting in eutrophication of the water body. At the same time, a large amount of suspended solids will block the pipeline and seriously damage the ecological environmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F1/28C02F101/30C02F103/32
Inventor 不公告发明人
Owner 贵州鑫吉瑞环境科技有限公司
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