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Efficient wastewater treatment device for papermaking process tobacco leaf regeneration and wastewater treatment method thereof

A technology for reconstituted tobacco leaves and wastewater treatment, applied in multi-stage water treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of high waste water cost, low ozone solubility, low ozone utilization rate, etc., and achieve improved treatment effect, improve mass transfer efficiency, improve the effect of the effect

Pending Publication Date: 2017-02-22
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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  • Efficient wastewater treatment device for papermaking process tobacco leaf regeneration and wastewater treatment method thereof

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Experimental program
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Effect test

Embodiment 1

[0059] In this embodiment, a high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention is used to treat papermaking reconstituted tobacco wastewater treated by air flotation and UASB+SBR. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530mg / L.

[0060] A high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention treats papermaking method reconstituted tobacco wastewater secondary biological treatment effluent, comprising the following steps and process conditions:

[0061] (1) Pre-treatment: The effluent from the secondary settling tank of the 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 enters the flow state of the pre-treatment tower Chemical reaction zo...

Embodiment 2

[0069] In this embodiment, a high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention is used to treat papermaking reconstituted tobacco wastewater treated by air flotation and UASB+SBR. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530mg / L.

[0070] A high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention treats papermaking method reconstituted tobacco wastewater secondary biological treatment effluent, comprising the following steps and process conditions:

[0071](1) Pre-treatment: The effluent from the secondary settling tank of the 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 enters the flow state of the pre-treatment tower Chemical reaction zon...

Embodiment 3

[0079] In this embodiment, a high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention is used to treat papermaking reconstituted tobacco wastewater treated by air flotation and UASB+SBR. The COD of wastewater is cr It is 540 mg / L, the color is 920 C.U., and the SS is 530mg / L.

[0080] A high-efficiency papermaking method reconstituted tobacco wastewater treatment device of the present invention treats papermaking method reconstituted tobacco wastewater secondary biological treatment effluent, comprising the following steps and process conditions:

[0081] (1) Pre-treatment: The effluent from the secondary settling tank of the 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 enters the flow state of the pre-treatment tower Chemical reaction zo...

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Abstract

The invention discloses an efficient wastewater treatment device for papermaking process tobacco leaf regeneration and a wastewater treatment method thereof. The device comprises a water-collecting pool (9), a pretreatment tower (14), a catalytic oxidation tower (1), an aftertreatment tower (28), an agent preparation system (34), an ozone supply system and a clear water pool (33). The wastewater treatment method includes the following steps that (1), pretreatment is carried out; (2), catalytic oxidation treatment is carried out; (3), aftertreatment is carried out. By the utilization of the wastewater treatment method, wastewater treatment efficiency is improved, the quantity of consumed chemical agents is reduced, the removal effect of the wastewater COD and color degree is improved, the utilization rate of ozone is increased, and wastewater treatment cost is lowered.

Description

technical field [0001] The invention relates to a device and method for treating waste water from reconstituted tobacco leaves by a papermaking method, in particular to a device for treating waste water from reconstituted tobacco leaves by a papermaking method and a method for treating waste water. Background technique [0002] Paper-making reconstituted tobacco leaves are made from wastes such as tobacco stems, tobacco leaf fragments, and tobacco dust produced in the cigarette production process, and are prepared into thin sheets close to tobacco leaves by wet papermaking. These thin sheets can be used in cigarette production. Papermaking reconstituted tobacco leaves have low density, high filling value, high silk yield, low tar release, and strong product plasticity, which has become one of the important ways for comprehensive utilization of tobacco raw material waste. [0003] However, the production process of reconstituted tobacco leaves by the papermaking method consum...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F2301/08C02F2201/007C02F3/34C02F1/56C02F1/5245C02F1/78C02F1/725C02F1/722C02F1/281Y02W10/10
Inventor 雷利荣李友明
Owner SOUTH CHINA UNIV OF TECH
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