Papermaking-process reconstituted tobacco wastewater advanced treatment device and wastewater treatment method thereof

A technology of reconstituted tobacco leaves and advanced treatment, applied in water/sewage treatment, biological water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of low ozone solubility, high waste water cost, low ozone utilization rate, etc., to improve Mass transfer efficiency, the effect of improving the effect

Active Publication Date: 2017-01-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the solubility of ozone in wastewater is low, and the utilization rate of ozone in the wastewater treatment process is low. Part of the unreacted ozone is discharged with the tail gas, which has become one of the main reasons for the high cost of ozone treatment wastewater

Method used

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  • Papermaking-process reconstituted tobacco wastewater advanced treatment device and wastewater treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In this example, a device for advanced treatment of reconstituted tobacco wastewater from papermaking is used to treat wastewater from papermaking reconstituted tobacco wastewater after air flotation and UASB+SBR treatment. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530 mg / L.

[0062] Applying a papermaking process reconstituted tobacco wastewater advanced treatment device of the present invention to treat the papermaking process reconstituted tobacco wastewater secondary biological treatment effluent includes the following steps and process conditions:

[0063] (1) Pre-treatment: The effluent from the secondary settling tank of secondary biological treatment of reconstituted tobacco wastewater from papermaking method enters the sump 9, and is transported by the first water pump 10 through the pipeline to the jet water inlet of the pre-treatment tower 14, and the flow entering the pre-treatment tower 14 State reaction zone 14-1, add...

Embodiment 2

[0071] In this example, a device for advanced treatment of reconstituted tobacco wastewater from papermaking is used to treat wastewater from papermaking reconstituted tobacco wastewater after air flotation and UASB+SBR treatment. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530 mg / L.

[0072] Applying a papermaking process reconstituted tobacco wastewater advanced treatment device of the present invention to treat the papermaking process reconstituted tobacco wastewater secondary biological treatment effluent includes the following steps and process conditions:

[0073] (1) Pre-treatment: The effluent from the secondary settling tank of secondary biological treatment of reconstituted tobacco wastewater from papermaking method enters the sump 9, and is transported by the first water pump 10 through the pipeline to the jet water inlet of the pre-treatment tower 14, and the flow entering the pre-treatment tower 14 In the state reaction zone 14...

Embodiment 3

[0081] In this example, a device for advanced treatment of reconstituted tobacco wastewater from papermaking is used to treat wastewater from papermaking reconstituted tobacco wastewater after air flotation and UASB+SBR treatment. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530 mg / L.

[0082] Applying a papermaking process reconstituted tobacco wastewater advanced treatment device of the present invention to treat the papermaking process reconstituted tobacco wastewater secondary biological treatment effluent includes the following steps and process conditions:

[0083] (1) Pre-treatment: The effluent from the secondary settling tank of secondary biological treatment of reconstituted tobacco wastewater from papermaking method enters the sump 9, and is transported by the first water pump 10 through the pipeline to the jet water inlet of the pre-treatment tower 14, and the flow entering the pre-treatment tower 14 In the state reaction zone 14...

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Abstract

The invention discloses a papermaking-process reconstituted tobacco wastewater advanced treatment device and a wastewater treatment method thereof. The device comprises a water collecting tank (9), a pretreatment tower (14), a catalytic oxidation tower (1), an aftertreatment tower (28), a medicament preparation system (34), an ozone supply system and a clean water tank (33). The wastewater treatment method of the device comprises the following steps: (1) carrying out pretreatment; (2) carrying out catalytic oxidation treatment; and (3) carrying out aftertreatment. The wastewater treatment method of the device has the advantages that the consumption of a chemical agent can be reduced, wastewater treatment efficiency is improved, wastewater COD and chromaticity removal effect is improved, and the ozone utilization rate is increased.

Description

technical field [0001] The invention relates to a waste water advanced treatment device and a method for treating waste water, in particular to a papermaking reconstituted tobacco leaf waste water deep treatment device and a method for treating waste water. Background technique [0002] Paper-making reconstituted tobacco leaves use tobacco waste as a raw material, which is prepared into thin sheets close to tobacco leaves by paper-making methods, and then applied to the production of cigarettes. Papermaking reconstituted tobacco has become an important way for the comprehensive utilization of tobacco raw material waste due to its characteristics of low density, high filling value, high silk yield, and low tar release. [0003] During the production process of reconstituted tobacco leaves by papermaking method, the waste water generated by producing 1 ton of reconstituted tobacco leaves is 70 m 3 above. Although this kind of wastewater has good biodegradability, it is very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/56C02F1/5245C02F1/78C02F3/00C02F1/725C02F1/722
Inventor 雷利荣张成李友明
Owner SOUTH CHINA UNIV OF TECH
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