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A kind of waste water treatment device, waste water treatment method

A waste water treatment and waste water technology, applied in water/sewage treatment, water/sewage multi-stage treatment, oxidized water/sewage treatment, etc., can solve the problem of easy clogging of ceramic membranes

Active Publication Date: 2021-07-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The application provides a wastewater treatment device and a wastewater treatment method, which can improve the technical problem that ceramic membranes are easy to clog

Method used

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  • A kind of waste water treatment device, waste water treatment method
  • A kind of waste water treatment device, waste water treatment method
  • A kind of waste water treatment device, waste water treatment method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The embodiment of the present application provides a wastewater treatment method using the above-mentioned wastewater treatment device 10, wherein the ceramic membrane is a spent FCC catalyst ceramic membrane, which includes the following steps:

[0072] COD content is 20765 mg / L, ammonia nitrogen content is 483 mg / L waste water to pass in the reaction tank 200 through the water injection device, add the spent FCC catalyst 300 that the waste water quality in the reaction tank 200 is 1% through hydrothermal treatment, and The spent FCC catalyst 300 is evenly distributed on the bottom of the reaction chamber 201, and ozone is introduced into the reaction tank 200 through the ozone input device, and the amount of ozone added is 1 mg / L. The clean water in the clean water chamber 202 is drawn out through the water outlet device. Among them, the hydraulic retention time is 5 minutes.

Embodiment 2

[0074] The embodiment of the present application provides a wastewater treatment method using the above-mentioned wastewater treatment device 10, wherein the ceramic membrane is a spent FCC catalyst ceramic membrane, which includes the following steps:

[0075] Through the water injection device, waste water with a COD content of 20837 mg / L and an ammonia nitrogen content of 437 mg / L is passed into the reaction tank 200, and the waste FCC catalyst 300 with a waste water quality of 2% after hydrothermal treatment in the reaction tank 200 is added, and the waste The FCC catalyst 300 is evenly distributed on the bottom of the reaction chamber 201, and ozone is introduced into the reaction tank 200 through an ozone input device. The amount of ozone added is 2 mg / L, and the volume is the volume of wastewater in the reaction tank 200. The clean water in the clean water chamber 202 is drawn out through the water outlet device. Among them, the hydraulic retention time is 5 minutes.

Embodiment 3

[0077] The embodiment of the present application provides a wastewater treatment method using the above-mentioned wastewater treatment device 10, wherein the ceramic membrane is a spent FCC catalyst ceramic membrane, which includes the following steps:

[0078] COD content is 22134mg / L, ammonia nitrogen content is that the waste water of 317mg / L is passed in the reaction tank 200 through the water injection device, and in the reaction tank 200, the waste FCC catalyst 300 that waste water quality is 3% through hydrothermal treatment is added, and the waste FCC The catalyst 300 is evenly distributed on the bottom of the reaction chamber 201, and ozone is introduced into the reaction pool 200 through an ozone input device. The amount of ozone added is 3 mg / L, and the volume is the volume of wastewater in the reaction pool 200. The clean water in the clean water chamber 202 is drawn out through the water outlet device. Among them, the hydraulic retention time is 5 minutes.

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Abstract

A waste water treatment device and a waste water treatment method belong to the technical field of waste water treatment. The wastewater treatment device includes a ceramic membrane and a reaction tank for containing wastewater. The reaction tank is divided into a reaction chamber and a clean water chamber by the ceramic membrane. The reaction chamber is distributed with a catalyst that accelerates the purification of wastewater, and the catalyst is blocked by the ceramic membrane. After the ozone is passed into the reaction chamber, the ozone oxidizes and purifies the wastewater under the action of the catalyst, and the purified wastewater can enter the clean water chamber through the ceramic membrane to be collected. Since the raw material of the ceramic membrane includes the catalyst, the charges carried on the surface of the ceramic membrane and the surface of the catalyst are the same. When pumping clean water, the ceramic membrane has a negative pressure, and the pollutants and catalysts in the wastewater will be sucked to the surface of the ceramic membrane to form a mud cake layer. When the negative pressure suction force of the ceramic membrane is removed, the mud cake layer is repelled by the charge. Function, automatically detached from the surface of the ceramic membrane. The pollutants entering the pores of the ceramic membrane can be removed by the oxidant under the self-catalysis of the ceramic membrane, thereby realizing self-cleaning.

Description

technical field [0001] The present application relates to the technical field of wastewater treatment, in particular, to a wastewater treatment device and a wastewater treatment method. Background technique [0002] With the acceleration of industrialization and population urbanization, the current shortage of water resources and water pollution are becoming more and more serious. The main sources of water pollution are industrial wastewater, domestic sewage, agricultural wastewater, etc., among which industrial wastewater is the most serious. [0003] In recent years, the construction of industrial wastewater treatment facilities has been accelerated, but the wastewater treated by traditional biochemical treatment processes still contains many refractory organic pollutants, bacteria and heavy metals, which are toxic and harmful to the human body, and cannot meet the reuse water standard. [0004] Ozone catalytic oxidation technology uses ozone to generate hydroxyl radicals...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F101/16C02F101/30
CPCC02F1/44C02F1/725C02F1/78C02F2101/16C02F2101/30C02F2201/007C02F2303/14C02F2305/023
Inventor 孙华君
Owner WUHAN UNIV OF TECH