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System for carrying out deep treatment on coking wastewater by ozonation, BAC filtering and composite catalytic oxidation and treatment method thereof

A technology of ozone oxidation and catalytic oxidation, applied in filtration treatment, oxidized water/sewage treatment, chemical instruments and methods, etc., can solve the problems of low ozone utilization rate, high investment cost, large power consumption, etc., to improve utilization rate , Reduce the processing cost, the effect of small footprint

Inactive Publication Date: 2018-10-16
无锡容大环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ozone is an efficient and clean oxidant, but the whole process of wastewater treatment uses an ozone generator for oxidation treatment, which consumes a lot of power, has low utilization rate, and high investment cost, and the ozone oxidation device in the prior art has a low ozone utilization rate

Method used

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  • System for carrying out deep treatment on coking wastewater by ozonation, BAC filtering and composite catalytic oxidation and treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 As shown, the ozone oxidation-BAC filtration-compound catalytic oxidation system for advanced treatment of coking wastewater includes coagulation reaction tank 1, coagulation sedimentation tank 2, intermediate pool 3, multimedia filter 4, ozone oxidation device 5, and ozone water production tank 6. BAC filter 7, BAC water production tank 8, composite catalytic oxidation device 9, discharge tank 10, sludge concentration tank 11, backwash drainage tank 12, backwash water sedimentation tank 13; coagulation reaction tank 1, coagulation sedimentation Pool 2, intermediate pool 3, multimedia filter 4, ozone oxidation device 5, ozone water production pool 6, BAC filter tank 7, BAC water production pool 8, composite catalytic oxidation device 9, and discharge pool 10 are connected in sequence through pipelines; coagulation and sedimentation The pool 2 is provided with a sludge outlet and the sludge concentration pool 11 is connected through pipelines; t...

Embodiment 2

[0027]Embodiment 2: waste water enters the mixing section of coagulation reaction tank 1, adds coagulant PAC (polyaluminum chloride) solution here, and the dosage of PAC is 20kg / thousand tons of waste water, under the stirring of mixing mixer, The influent and the PAC solution were mixed uniformly within 30 minutes, and the coagulant PAM (polyacrylamide) was added to the water outlet of the coagulation reaction tank 1. The dosage of PAM was 30kg / 1,000 tons of waste water, and the suspended matter in the waste water was Under the action of the coagulant aid, larger flocs are formed so as to be separated from the waste water. The waste water flows to the coagulation sedimentation tank 2 through the outlet pipe of the coagulation reaction tank 1 for mud-water separation. After the separation of sludge and water is completed, the mixed The sludge in the coagulation sedimentation tank 2 is pumped into the physical and chemical sludge concentration tank for concentration treatment, ...

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Abstract

The invention provides a system for carrying out deep treatment on coking wastewater by ozonation, BAC filtering and composite catalytic oxidation, which comprises a coagulation reaction pool, a coagulation sedimentation tank, an intermediate water pool, a multi-media filter, an ozonation device, an ozone produced water pool, a BAC filter, a BAC produced water pool, a composite catalytic oxidationdevice and a discharged water pool. The coagulation reaction pool, the coagulation sedimentation tank, the intermediate water pool, the multi-media filter, the ozonation device, the ozone produced water pool, the BAC filter, the BAC produced water pool, the composite catalytic oxidation device and the discharged water pool are sequentially communicated by pipelines. The invention further providesa method for treating coking wastewater by adopting the system for carrying out deep treatment on coking wastewater by ozonation, BAC filtering and composite catalytic oxidation. According to the invention, effluent can be directly discharged; when conditions permit, deeply treated water can not be discharged and used as raw water of an intermediate water reuse system or used as circulating cooling water, so that zero discharge of the coking wastewater is implemented, water resources are saved, and discharge of pollutants is reduced.

Description

technical field [0001] The invention relates to a coking wastewater treatment device and a coking wastewater treatment method, in particular to an ozone oxidation-BAC filtration-composite catalytic oxidation system for advanced treatment of coking wastewater and a treatment method thereof. Background technique [0002] In recent years, a lot of work has been done on the advanced treatment of coking wastewater at home and abroad. The traditional water treatment technology has been adapted and combined for coking wastewater, and the efficiency of biochemical and advanced oxidation technologies has been maximized, and certain achievements have been made. results. At present, the advanced treatment technologies of coking wastewater mainly include: coagulation sedimentation method, Fenton reagent oxidation, O3 oxidation. [0003] Coagulation and sedimentation method: The coagulants used in the advanced treatment of traditional coking wastewater include polyaluminum chloride and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2003/003C02F3/106C02F1/56C02F1/5236C02F1/725C02F1/78C02F1/001C02F2303/04C02F2201/782
Inventor 黄振兴万平
Owner 无锡容大环境科技有限公司