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A treatment, regeneration and cyclic utilization method for tobacco sheet production wastewater

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. It can solve the problems of substandard discharge of waste water, long process flow and large equipment investment, etc. problem, to achieve the effect of preventing scaling and high activity

Inactive Publication Date: 2014-07-09
BOYING XIAMEN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 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. After treatment, the discharged wastewater does not meet the standard, cannot be regenerated and recycled, and provides a combination of chemical decalcification technology, biochemical technology, electrochemical technology, BAF technology and membrane technology, which has low cost and high efficiency. Treatment method of recycled tobacco production wastewater

Method used

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  • A treatment, regeneration and cyclic utilization method for tobacco sheet production wastewater
  • A treatment, regeneration and cyclic utilization method for tobacco sheet production wastewater
  • A treatment, regeneration and cyclic utilization method for tobacco sheet production wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A method for treating and regenerating and recycling 20 tons / day of tobacco sheet production wastewater.

[0056] The water quality index of the described tobacco sheet production wastewater is determined as shown in Table 2.

[0057]

[0058] (1) Slag removal

[0059] The waste water from tobacco sheet production is collected by the pipeline and then discharged into the mechanical coarse grid collecting tank 1. The coarse grid is set in the pool to isolate and remove the medium and coarse floating objects in the sewage, so as to prevent the blockage of the subsequent treatment equipment. The waste water from tobacco sheet production is lifted into the rotary mechanical fine grid machine 2, and most of the insoluble suspended solids in the water are further removed through the filtration of the filter screen.

[0060] (2) Chemical decalcification

[0061] The effluent after slag removal first flows into the adjustment tank 3 through the pipeline, and then enters th...

Embodiment 2

[0085] A method for treating and regenerating and recycling 50 tons / day of tobacco sheet production wastewater.

[0086] The water quality index of the described tobacco sheet production wastewater is determined as shown in Table 5.

[0087]

[0088] (1) Slag removal

[0089] The waste water from tobacco sheet production is collected by the pipeline and then discharged into the mechanical coarse grid collecting tank 1. The coarse grid is set in the pool to isolate and remove the medium and coarse floating objects in the sewage, so as to prevent the blockage of the subsequent treatment equipment. The waste water from tobacco sheet production is lifted into the rotary mechanical fine grid machine 2, and most of the insoluble suspended solids in the water are further removed through the filtration of the filter screen.

[0090] (2) Chemical decalcification

[0091] The effluent after slag removal first flows into the adjustment tank 3 through the pipeline, and then enters th...

Embodiment 3

[0115] A method for treating and regenerating 10 tons / day waste water from tobacco sheet production.

[0116] The water quality index of the described tobacco sheet production wastewater is determined as shown in Table 8.

[0117]

[0118] (1) Slag removal

[0119] The waste water from tobacco sheet production is collected by the pipeline and then discharged into the mechanical coarse grid collecting tank 1. The coarse grid is set in the pool to isolate and remove the medium and coarse floating objects in the sewage, so as to prevent the blockage of the subsequent treatment equipment. The waste water from tobacco sheet production is lifted into the rotary mechanical fine grid machine 2, and most of the insoluble suspended solids in the water are further removed through the filtration of the filter screen.

[0120] (2) Chemical decalcification

[0121] The effluent after slag removal first flows into the adjustment tank 3 through the pipeline, and then enters the first-sta...

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Abstract

A method for treating and regenerating waste water from tobacco sheet production, comprising the following steps: slag removal→chemical decalcification→air flotation→anaerobic treatment→electrolysis→A / O treatment→secondary electrolysis→membrane treatment / biological aerated filter Biochemistry → triple electrolysis → desalination → regenerated water. Based on the combination of chemical decalcification technology, biochemical technology, electrochemical technology, BAF technology and membrane technology, the present invention has lower cost and higher efficiency. After the tobacco flake production wastewater is treated, 75% to 85% can be regenerated and recycled. Reduce waste water discharge, prevent waste water from polluting the environment, and reduce waste of water resources. It can also make the cost of regenerated circulating water lower than the price of tap water, which is economically reasonable and produces better economic benefits.

Description

technical field [0001] The present invention relates to a method for the treatment and recycling of tobacco sheet production wastewater, in particular to a tobacco sheet production wastewater and tobacco production wastewater based on chemical decalcification technology, biochemical technology, electrochemical technology, BAF technology and membrane technology The processing and regeneration recycling method belongs to the field of water pollution control of environmental engineering. 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 cigarette production, 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,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCY02A20/131
Inventor 张世文王峰李丹王福利庞志强侯勋
Owner BOYING XIAMEN SCI & TECH
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