Special equipment for degrading sewage COD (Chemical Oxygen Demand) and control method of special equipment

A technology for degrading sewage and special equipment, which is applied in the field of sewage treatment equipment, can solve the problems of high ozone cost, achieve long-lasting effect, reduce treatment cost, and avoid disturbance

Inactive Publication Date: 2018-01-12
上海通凌化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a special equipment for degrading sewage COD and its control method. The equipment and method solve the technical problem of high ozone production cost in the prior art, and can reduce the reducing substances in sewage through high exposure dissolved oxygen technology. Oxidation, reduce COD in sewage

Method used

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  • Special equipment for degrading sewage COD (Chemical Oxygen Demand) and control method of special equipment
  • Special equipment for degrading sewage COD (Chemical Oxygen Demand) and control method of special equipment
  • Special equipment for degrading sewage COD (Chemical Oxygen Demand) and control method of special equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A special equipment for degrading sewage COD, the equipment includes: two high exposure dissolved oxygen sewage preparation equipment and PLC.

[0074] The high-exposure dissolved oxygen sewage preparation equipment includes: an oxygen balance tank 10 , a dissolved oxygen generator 20 , a gaseous dissolved oxygen balance device 30 , a gas-liquid interface generator 40 and a water vapor separator 50 .

[0075] The oxygen balance tank 10 is connected to the dissolved oxygen generator 20, the dissolved oxygen generator 20 is connected to the gaseous dissolved oxygen balance device 30, the gaseous dissolved oxygen balance device 30 is connected to the gas-liquid interface generator 40, and the gas-liquid interface generator 40 is separated from the water vapor The water vapor separator 50 is connected with the dissolved oxygen generator 20 and the oxygen balance tank 10 . The gaseous dissolved oxygen balance device 30 is arranged on the oxygen balance tank 10 .

[0076] A ...

Embodiment 2

[0085] A special equipment for degrading sewage COD, which is basically the same as the equipment in Embodiment 1, the difference lies in the structure of the water vapor separator 50.

[0086] Such as Figure 4 As shown, the water vapor separator 50 includes: a separator vessel 51 connected with the gas-liquid interface generator 40 and the dissolved oxygen generator 20 . The separator container 51 is provided with: a water inlet 511 , a water outlet 512 and an exhaust port 513 .

[0087] The water inlet 511 is arranged on the bottom of the separator container 51, and the water outlet 512 is arranged on the side of the separator container 51, and the end of the pipeline provided on the water inlet 511 is higher than the height of the water inlet 511 at the side of the separator container 51. The water inlet 511 communicates with the gas-liquid interface generator 40 through a pipeline. The water outlet 512 communicates with the dissolved oxygen generator 20 through a pipeli...

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Abstract

The invention discloses special equipment for degrading sewage COD (Chemical Oxygen Demand) and a control method of the special equipment. The special equipment comprises a plurality of high-aerationdissolved oxygen sewage preparation equipment and a PLC (Programmable Logic Controller), wherein the high-aeration dissolved oxygen sewage preparation equipment comprises oxygen balance tanks, dissolved oxygen generators connected with sewage pipelines and the oxygen balance tanks, gaseous dissolved oxygen balance devices connected with the dissolved oxygen generators, gas-liquid interface generators connected with the gaseous dissolved oxygen balance devices and the dissolved oxygen generators, and water-gas separators which are connected with the gas-liquid interface generators, the dissolved oxygen generators and the oxygen balance tanks; and the PLC is electrically connected with the gaseous dissolved oxygen balance devices and the gas-liquid interface generators. By adopting the equipment and the method disclosed by the invention, reductive substances in sewage can be oxidized by using a high-aeration dissolved oxygen technique, and the COD of the sewage is reduced.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a special equipment for degrading sewage COD and a control method thereof. Background technique [0002] Chemical Oxygen Demand (Chemical Oxygen Demand), also known as chemical oxygen demand, referred to as COD, refers to the amount of oxygen consumed when chemical oxidants are used to oxidize reducing substances in water under certain conditions, in mg / L. COD reflects the degree of water pollution by reducing substances. Reducing substances in water include organic matter, nitrite, ferrous salt, sulfide, etc. Among them, the most common among these reducing substances are organic substances. The COD value can reflect the degree of organic pollution in water to a certain extent. Therefore, COD is commonly used as an indicator to monitor the water quality of discharged wastewater. [0003] The higher the COD value, the more serious the water body is polluted by reducing substances ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72
Inventor 徐陈国
Owner 上海通凌化工有限公司
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