Method for processing waste water generated in production of tobacco sheet

A technology for the production of waste water and tobacco flakes, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. problem, to achieve high activity and prevent equipment fouling

Inactive Publication Date: 2013-08-14
BOYING XIAMEN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to aim at the long process flow, large equipment investment, large floor area, high operating cost, and biochemical treatment system and membrane treatment system that cannot operate normally due to fouling in the existing tobacco production wastewater treatment method. The treated...

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  • Method for processing waste water generated in production of tobacco sheet
  • Method for processing waste water generated in production of tobacco sheet
  • Method for processing waste water generated in production of tobacco sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 2000 tons / day tobacco sheet production wastewater treatment method.

[0049] The water quality indicators of the tobacco flake production wastewater are shown in Table 1 after determination.

[0050] Table 1 Water quality indicators of wastewater from tobacco flake production

[0051] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 5800 5 Chroma times 15000 2 COD Cr mg / L 25000 6 Ca 2+ mg / L 200 3 SS mg / L 15000 7 water temperature ℃ 50 4 pH value 6.2

[0052] (1) Slag removal

[0053] Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water f...

Embodiment 2

[0074] The treatment method of 5000 tons / day tobacco flake production wastewater.

[0075] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 3.

[0076] Table 3 Water quality indicators of wastewater from tobacco flake production

[0077] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 2000 5 Chroma times 25000 2 COD Cr mg / L 8000 6 Ca 2+ mg / L 300 3 SS mg / L 6200 7 water temperature ℃ 55 4 pH value 6

[0078] (1) Slag removal

[0079]Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water fro...

Embodiment 3

[0100] 8000 tons / day tobacco sheet production waste water recycling method.

[0101] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 5.

[0102] Table 5 Water quality indicators of wastewater from tobacco flake production

[0103] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 600 5 Chroma times 20000 2 COD Cr mg / L 2000 6 Ca 2+ mg / L 400 3 SS mg / L 1000 7 water temperature ℃ 50 4 pH value 6.5

[0104] (1) Slag removal

[0105] Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water from to...

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Abstract

The invention relates to a method for processing waste water generated in production of tobacco sheet. The method comprises the following sequential steps of generation of waste water in production of tobacco sheet, deslagging, chemical decalcifying, anaerobic treatment, electrolysis, A/O (anaerobic/oxic) processing, secondary electrolysis, MBR (membrane biological reaction), electrolysis disinfection and up-to-standard release. Based on the combination of a chemical decalcification technology, a biochemical technology, an electrochemical technology and an MBR technology, the method can effectively process the waste water generated by tobacco sheet production, is low in cost and has high efficiency, and the discharged waste water reaches the standard.

Description

technical field [0001] The present invention relates to a treatment method for tobacco sheet production wastewater, in particular to a treatment method for tobacco sheet production wastewater and tobacco production wastewater based on chemical decalcification technology, biochemical technology, electrochemical technology and MBR technology, which belongs to environmental engineering in the field of water pollution control. Background technique [0002] During the production of tobacco leaves, the raw materials cannot be fully utilized. During the production process of tobacco from primary processing to cigarettes, there will be scraps accounting for about 1 / 3 of the total amount of raw tobacco materials. These tobacco scraps cannot be directly used as The raw material is again made into a cigarette product. In order to reduce the generation of waste and realize the comprehensive utilization of debris, tobacco sheet technology came into being. Tobacco sheet, also known as r...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 张世文王峰傅美强张怿昕林锦松
Owner BOYING XIAMEN SCI & TECH
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