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Industrial wastewater treatment process

A technology for treating process and industrial wastewater, which is applied in the direction of food industry wastewater treatment, water/sewage treatment, flotation water/sewage treatment, etc. It can solve the problem of difficulty in separating suspended solids, reduce the speed of odor emission, and purify the work Environment, reduce the effect of endothermic explosion

Pending Publication Date: 2021-06-01
福建沛泰环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the separation of suspended solids in sewage is difficult, the application provides an industrial wastewater treatment process

Method used

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Examples

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Comparison scheme
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Embodiment 1

[0036] Embodiment 1: A kind of industrial wastewater treatment process, the sewage is passed into the grid, the air flotation tank, the adjustment tank, the anaerobic tank, the aerobic tank, the inclined tube sedimentation tank in sequence, and then discharged, wherein the grid, the adjustment tank, the anaerobic The treatment process of pond, aerobic pond and inclined tube sedimentation pond are all prior art, and will not repeat them here.

[0037] The principle of the air flotation tank is: use a large number of micro-bubbles to capture and absorb fine particles of sticky matter (that is, suspended matter) to float up to achieve the effect of solid-liquid separation.

[0038] The material that can generate a large number of microbubbles in the air flotation tank is the air flotation agent. The air flotation agent in the prior art is generally air. The air flotation agent in this embodiment is liquid nitrogen. The volume ratio of liquid nitrogen to sewage for 1:30. When the...

Embodiment 2

[0041] Example 2: An industrial wastewater treatment process, the difference from Example 1 is that the volume ratio of liquid nitrogen to sewage in this example is 1:40.

Embodiment 3

[0042] Example 3: An industrial wastewater treatment process, the difference from Example 1 is that the volume ratio of liquid nitrogen to sewage in this example is 1:50.

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Abstract

The invention relates to the field of sewage treatment, and particularly discloses an industrial wastewater treatment process. The process comprises the steps that: sewage is sequentially introduced into a grating, an air floatation tank, an adjusting tank, an anaerobic tank, an aerobic tank and an inclined tube sedimentation tank to be treated and then discharged, an air floatation agent is sprayed upwards from the bottom of the air floatation tank, and the air floatation agent is liquid nitrogen and has the advantages of reducing the separation difficulty of suspended solids and improving the air floatation efficiency.

Description

technical field [0001] This application relates to the field of sewage treatment, more specifically, it relates to an industrial wastewater treatment process. Background technique [0002] The food industry has a wide range of raw materials and a wide variety of products, and a large amount of water is used in the processing process. Therefore, organic matter such as oil and fiber on the food will mix with water to produce sewage, which needs to be treated before it can be discharged. [0003] At present, the food processing wastewater treatment process is generally to sequentially pass the sewage through the grille, the air flotation tank and the subsequent multiple processes to achieve the purification of the sewage. [0004] However, similar to the above-mentioned wastewater treatment process in the prior art, the air flotation agent introduced into the air flotation tank is generally air, which captures the suspended matter through the air bubbles formed in the air flota...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/24C02F1/52C02F3/30C02F103/32
CPCC02F9/00C02F2103/32C02F3/30C02F1/24C02F1/52C02F1/5236C02F1/5245
Inventor 赖诗灵施润
Owner 福建沛泰环境工程有限公司
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