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Treatment method of tobacco sheet production wastewater

A technology for producing waste water and tobacco sheets, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., and can solve the problems of high operating cost, long equipment process and large equipment investment. , to achieve the effect of preventing equipment fouling and high activity

Inactive Publication Date: 2014-02-26
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 wastewater does not meet the standard and other defects, and provides a treatment based on the combination of chemical decalcification technology, biochemical technology, electrochemical technology and BAF technology, with low cost and high efficiency, so that it can meet the standard discharge of tobacco production wastewater method

Method used

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  • Treatment method of tobacco sheet production wastewater
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 2000 tons / day tobacco sheet production wastewater treatment method.

[0048] The water quality indicators of the tobacco flake production wastewater are shown in Table 1 after determination.

[0049] Table 1 Water quality indicators of wastewater from tobacco flake production

[0050] 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

[0051] (1) Slag removal

[0052] 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

[0073] The treatment method of 5000 tons / day tobacco flake production wastewater.

[0074] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 3.

[0075] Table 3 Water quality indicators of wastewater from tobacco flake production

[0076] 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

[0077] (1) Slag removal

[0078] 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 fr...

Embodiment 3

[0099] 8000 tons / day tobacco sheet production waste water recycling method.

[0100] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 5.

[0101] Table 5 Water quality indicators of wastewater from tobacco flake production

[0102] 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

[0103] (1) Slag removal

[0104] 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 provides a treatment method of tobacco sheet production wastewater. The treatment method comprises the following steps of: removing slag, carrying out chemical de-calcification, carrying out anaerobic treatment, carrying out electrolysis, carrying out A / O treatment, carrying out secondary electrolysis, biochemically processing by using a biological aerated filter, and disinfecting and treating sludge. The treatment method of tobacco sheet production wastewater is used for treating the tobacco sheet production wastewater by combining a chemical de-calcification technology, a biochemical technology, an electrochemical technology and a BAF (Biological Aerated Filter) technology, so that the cost is lower and the efficiency is higher, and therefore, the wastewater can be exhausted after reaching the standards.

Description

technical field [0001] The present invention relates to a treatment method of waste water from tobacco flake production, in particular to a treatment method of waste water from tobacco flake production and tobacco production waste water based on chemical decalcification technology, biochemical technology, electrochemical technology and BAF technology, belonging 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 kno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 张世文王峰许雅玲陈艺羡王福利
Owner BOYING XIAMEN SCI & TECH
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