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Dyeing wastewater advanced treatment method and device by using ozone, oxydol and activated carbon

A printing and dyeing wastewater and advanced treatment technology, applied in the direction of oxidation water/sewage treatment, water/sewage treatment, textile industry wastewater treatment, etc., can solve the problems of high cost and low utilization rate, and achieve low operating cost and high ozone utilization rate , the treatment effect is remarkable

Inactive Publication Date: 2016-08-17
SHAOXING HEQIAO JIANGBIN WATER TREATMENT
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Problems solved by technology

However, there are still problems such as low utilization rate, high cost and strong selectivity in the reaction with organic matter when using only ozone oxidation.

Method used

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  • Dyeing wastewater advanced treatment method and device by using ozone, oxydol and activated carbon

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Embodiment Construction

[0027] Please refer to the attached figure 1 As shown, the present invention is a device for advanced treatment of printing and dyeing wastewater by ozone, hydrogen peroxide and activated carbon, which consists of a fiber turntable filter 1, a rapid mixing tank 2, an ozone contact tank 3, an activated carbon filter 4, and a filter effluent reservoir 5. Oxygen preparation station 6, ozone preparation station 7 and active carbon filter backwash wastewater recovery pool 8 are composed of several parts.

[0028] Wherein, the fiber rotary disc filter 1, the rapid mixing tank 2, the ozone contact tank 3, the activated carbon filter 4 and the filter outlet water storage tank 5 are connected in sequence.

[0029] The oxygen preparation station 6 is connected to the ozone preparation station 7; the ozone preparation station 7 is connected to the ozone contact tank 3 and the activated carbon filter tank 4 respectively.

[0030] A backwash pipe is connected between the activated carbon ...

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Abstract

The invention relates to a dyeing wastewater advanced treatment method and device by using ozone, oxydol and activated carbon. The method comprises the following steps: floatation effluent water passes through a fiber rotary table filter tank to remove suspended substances and enters a quick mixing tank, H2O2 is added into the quick mixing tank, the effluent water enters an ozone contact tank, H2O2 and O3 are simultaneously added into the tank to degrade nondegradable organic matters, the effluent water enters an activated carbon filter tank, and ozone is added into the activated carbon filter tank; the effluent water of the activated carbon filter tank enters a filter tank effluent water storage tank, and is discharged by a pump; and by using the filter tank effluent water storage tank as a back flushing water tank, back flushing wastewater is discharged into the activated carbon filter tank to perform back flushing on a wastewater recovery tank. By using the H2O2 and the activated carbon which carries the Fe2O3-CuO-MnO2-CeO2 catalyst and adding the ozone in different stages, the method has the characteristics of high catalytic efficiency, high ozone utilization ratio, favorable COD (chemical oxygen demand) removal effect, low cost and the like, so that the device has the characteristics of high treatment efficiency, high economy, high stability, high reliability, low carbon and environment friendliness.

Description

【Technical field】 [0001] The invention relates to a wastewater treatment method and device, in particular to a method and device for advanced treatment of printing and dyeing wastewater by ozone, hydrogen peroxide and activated carbon, and belongs to the technical field of industrial wastewater treatment. 【Background technique】 [0002] Printing and dyeing enterprises are large dischargers of industrial wastewater, which has the characteristics of large water volume, high content of organic pollutants, deep color, high alkalinity, and large changes in water quality. It is difficult to treat industrial wastewater. At present, the commonly used domestic printing and dyeing wastewater treatment processes are mainly divided into two categories: one is physical and chemical methods, that is, adding flocculants for precipitation or air flotation to remove pollutants in wastewater. Due to the high cost of dosing, incomplete removal of pollutants, large amount of sludge and difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/30
CPCC02F1/001C02F1/722C02F1/725C02F1/78C02F9/00C02F2103/30
Inventor 丁静王海云任烨
Owner SHAOXING HEQIAO JIANGBIN WATER TREATMENT
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