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Circulating sewage treatment method and device

A technology of sewage discharge and treatment cycle, applied in the direction of oxidized water/sewage treatment, etc., can solve problems such as unsatisfactory effect, and achieve the effect of reducing ozone consumption, improving treatment efficiency and short contact time

Inactive Publication Date: 2018-04-03
BEIJING WANBANGDA ENVIRONMENTAL PROTECTION TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in ozone oxidation as a COD removal process for circulating sewage (mainly the unsatisfactory contact mass transfer effect between ozone and water and its resulting series of problems), the present invention proposes a supergravity technology and equipment that will strengthen gas-liquid mass transfer and ozone oxidation Combined to improve the absorption level and efficiency of water to ozone, and then achieve the purpose of good pollutant degradation effect, high efficiency, less ozone consumption (cost saving), and less land occupation of facilities, so that the proposed recycled sewage COD removal The method is efficient and practical

Method used

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  • Circulating sewage treatment method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0027]The circulating sewage after the front-end coagulation and sedimentation treatment reaches the incoming water pool 1, and the measured COD of the incoming water is 82mg / L. The water in the incoming water pool 1 is transported by the pump and measured by the inflow flow meter 3, and then reaches the supergravity reactor 6; the ozone-containing gas is generated by the ozone generation system 2, and is also transported to the supergravity reaction after being measured by the flow meter and the ozone concentration meter. Device 6, the ozone concentration is 40mg / L. The gas-liquid flow ratio in the control hypergravity reactor 6 is 3. The rotor in the supergravity reactor 6 rotates to form a supergravity environment, and the supergravity level G is controlled at 50g. In this case, the water comes into contact with the ozone quickly, the ozone reacts quickly with the pollutants (within 1 second of liquid residence time), and the pollutants are degraded. Then, the water phase...

Embodiment 2

[0029] The circulating sewage after the front-end coagulation and sedimentation treatment reaches the incoming water pool 1, and the measured COD of the incoming water is 82mg / L. The water in the incoming water pool 1 is transported by the pump and measured by the inflow flow meter 3, and then reaches the supergravity reactor 6; the ozone-containing gas is generated by the ozone generation system 2, and is also transported to the supergravity reaction after being measured by the flow meter and the ozone concentration meter. Device 6, the ozone concentration is 40mg / L. Control the gas-liquid flow ratio in the hypergravity reactor 6 to be 5. The rotor in the supergravity reactor 6 rotates to form a supergravity environment, and the supergravity level G is controlled at 50g. In this case, the water comes into contact with the ozone quickly, the ozone reacts quickly with the pollutants (within 1 second of liquid residence time), and the pollutants are degraded. Then, the water p...

Embodiment 3

[0031] The circulating sewage after the front-end coagulation and sedimentation treatment reaches the incoming water pool 1, and the measured COD of the incoming water is 82mg / L. The water in the incoming water pool 1 is transported by the pump and measured by the inflow flow meter 3, and then reaches the supergravity reactor 6; the ozone-containing gas is generated by the ozone generation system 2, and is also transported to the supergravity reaction after being measured by the flow meter and the ozone concentration meter. Device 6, the ozone concentration is 40mg / L. Control the gas-liquid flow ratio in the hypergravity reactor 6 to be 1. The rotor in the supergravity reactor 6 rotates to form a supergravity environment, and the supergravity level G is controlled at 50g. In this case, the water comes into contact with the ozone quickly, the ozone reacts quickly with the pollutants (within 1 second of liquid residence time), and the pollutants are degraded. Then, the water p...

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Abstract

The embodiment of the invention provides a circulating sewage treatment method and device. The method comprises the steps that incoming water is conveyed to a high gravity reactor; gas containing ozone is conveyed to the high gravity reactor; a high gravity environment is formed in the high gravity reactor, and the high gravity level of the high gravity environment is G, so that the mass transferbetween the incoming water and the gas containing the ozone is carried out; water flowing out of the high gravity reactor is discharged out to a water outlet tank; and a part of the water in the wateroutlet tank is returned to the high gravity reactor for treating again. The method provided by the invention has a simple process and continuous operation; and the core device which is the high gravity reactor is small in size and small in occupied area.

Description

technical field [0001] The invention relates to sewage treatment, more specifically, to a method and device for treating circulating sewage. Background technique [0002] my country's water resources are scarce, water pollution is serious, and the water environment is facing an extremely severe situation. It is imminent to vigorously carry out water pollution control, especially to strengthen the treatment and treatment of industrial sewage. Circulating water plays an important role in industrial systems. On the one hand, it is related to the stable operation of production equipment. On the other hand, the circulation volume is huge, and the loss of flow rate cannot be underestimated. Necessary sewage discharge is an important part of the loss (accounting for more than one-fifth of the ), the recycling of recycled sewage and other clean water in the system is a key to saving water and reducing emissions in industrial systems. [0003] The main reason for the circulation of ...

Claims

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Application Information

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IPC IPC(8): C02F1/78
CPCC02F1/78
Inventor 单明军邵磊王伟刘陶然李宝平王丹
Owner BEIJING WANBANGDA ENVIRONMENTAL PROTECTION TECH
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