A circulating denitrification device for food industry wastewater

A technology for industrial wastewater and denitrification, which is applied in the fields of food industry wastewater treatment, water pollutants, water/sewage multi-stage treatment, etc.

Active Publication Date: 2021-04-02
纳琦绿能工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention patent application with the notification number CN108373201A discloses a treatment method and a special device for low carbon nitrogen ratio ammonia nitrogen wastewater. The device directly returns the reactant after the nitrification reaction to the denitrification reactor. Oxygen will affect the efficiency of the denitrification reactor

Method used

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  • A circulating denitrification device for food industry wastewater
  • A circulating denitrification device for food industry wastewater
  • A circulating denitrification device for food industry wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, the present embodiment provides a kind of circulation denitrification system for food industry wastewater, including

[0049] An aerobic pool 100, the aerobic pool 100 provides an oxygen-enriched environment for the aerobic bacteria, and the aerobic bacteria convert nitrogen into nitrate in the aerobic pool 100;

[0050] Deoxygenation tank 200, said deoxygenation tank 200 is an open structure and communicates with the aerobic tank 100, for receiving the reactant in the aerobic tank 100 and reducing the solubility of oxygen in the reactant;

[0051] Anoxic pool 300, said anoxic pool 300 communicates with deoxygenated pool 200 and aerobic pool 100 respectively, is used to receive the reactant in deoxygenated pool 200, and anaerobic bacteria will nitrate in said anoxic pool 300 Reduce to nitrogen, and discharge the reactants in the anoxic pool 300 into the aerobic pool 100;

[0052] A pressurizing part 400, the pressurizing part 400 is arranged...

Embodiment 2

[0060] Such as figure 2 As shown, this embodiment provides a kind of circulation denitrification device for food industry wastewater, including

[0061] The first casing 1, the first casing 1 includes a first cavity 2 with an open top, and the first casing 1 is respectively connected with a feed inlet 3 and an outlet connected to the first cavity 2. Feed port 4;

[0062]The second casing 5, the second casing 5 is arranged in the first casing 1, the second casing 5 includes a separated second cavity 8 and a third cavity 9, the second casing The body 5 also includes a first side wall 6 and a second side wall 7, and the first side wall 6 wraps a second cavity 8; the second cavity 8 is located above the third cavity 9 and the second cavity The top of 8 communicates with the first cavity 2, and a pressurizing pump 10 is provided between the second cavity 8 and the third cavity 9 to pump the reactant to the third cavity 9; the second side wall 7 wrapping the first side wall 6, a...

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PUM

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Abstract

The invention discloses a circulating denitrification device for waste water in the food industry, comprising an aerobic pool, an oxygen-depleting pool, an anoxic pool and a semiconductor refrigeration chip, and the aerobic pool, the deoxygenating pool, and the anoxic pool are connected by circulating flow Food industry wastewater is subjected to denitrification treatment, and the semiconductor refrigerating sheet includes a hot end and a cold end, and the hot end is close to the deoxygenation tank, and is used to increase the temperature of the reactants in the deoxygenation tank to reduce the solubility of oxygen; The end is close to the anoxic pool, and is used to reduce the temperature of the reactants in the anoxic pool. The invention can improve the efficiency of denitrification reaction, and improve the nitrogen removal rate of food industrial waste water.

Description

technical field [0001] The invention relates to the field of food industry wastewater treatment, in particular to a cyclic denitrification system for food industry wastewater and a circulatory denitrification device for food industry wastewater. Background technique [0002] The nitrogen content of general food industry wastewater is very high. With the improvement of the country's requirements for industrial wastewater discharge, nitrogen pollution will become a major environmental problem when the organic pollution of food industry wastewater is curbed, and denitrification treatment of food industry wastewater is required. [0003] At present, the commonly used nitrogen removal methods include A / O biological nitrogen removal treatment. A / O biological nitrogen removal treatment generally includes ammonification treatment, nitrification treatment and denitrification treatment. Ammonification treatment is the conversion of organic nitrogen by ammonification bacteria under aer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/16C02F103/32
CPCC02F1/20C02F3/302C02F2101/16C02F2103/32C02F2303/14
Inventor 扈明云董锡洪金峰王存建
Owner 纳琦绿能工程有限公司
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