Nicotine production waste water flocculating decolorizaiton and evaporation membrane treatment technology

A technology for the production of wastewater and evaporation membranes, which is applied in the fields of filtration treatment, water/sewage treatment, natural water treatment, etc., to achieve the effect of reducing pressure

Inactive Publication Date: 2017-04-19
河南顺天生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the popularization of nicotine refining production technology and the increasingly stringent environmental standards, the treatment

Method used

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  • Nicotine production waste water flocculating decolorizaiton and evaporation membrane treatment technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Take 1000 mL of refined nicotine production wastewater (COD is 36000 mg / L, pH=9), add sulfuric acid solution to adjust the pH to 5, then add 2 mL of 10% polyaluminum sulfate, stir rapidly for 50 seconds, then slowly stir After 2 minutes, static decolorization and flocculation for 30 minutes and then filtration, the COD was 21000 mg / L.

[0020] 2. After the filtrate passes through the activated fly ash column, the COD is 13000 mg / L.

[0021] 3. The column liquid is evaporated and concentrated, and the COD of the evaporated liquid is 5700 mg / L.

[0022] 4. After the evaporated liquid passes through the ultrafiltration device, when the concentration ratio of the permeate to the concentrate is 8:1, the COD of the wastewater permeate reaches 414 mg / L (COD removal rate is 73%); after nanofiltration After treatment, when the concentration ratio is 10:1, the COD of the wastewater permeate drops to 119 mg / L; finally, after passing through the reverse osmosis device, when the...

Embodiment 2

[0024] 1. Take 1000 mL of refined nicotine production wastewater (COD is 48000 mg / L, pH=11), add sulfuric acid solution to adjust the pH to 5, then add 2 mL of 10% polyaluminum sulfate, stir rapidly for 50 seconds, then slowly stir After 2 minutes, static decolorization and flocculation for 30 minutes and then filtration, the COD was 29860 mg / L.

[0025] 2. After the filtrate passes through the activated fly ash column, the COD is 23000 mg / L.

[0026] 3. The column liquid is evaporated and concentrated, and the COD of the distilled liquid is 6500 mg / L.

[0027] 4. After the evaporating liquid passes through the ultrafiltration device, when the concentration ratio of the permeate and the concentrate is 8:1, the COD of the wastewater permeate reaches 876 mg / L; after nanofiltration treatment, when the concentration ratio is 10 :1, the COD of the wastewater permeate drops to 253 mg / L. Finally, after passing through the reverse osmosis device, in the case of a concentration ratio ...

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Abstract

The invention relates to nicotine production waste water treatment, in particular to a nicotine production waste water flocculating decolorizaiton and evaporation membrane treatment technology. The pH value of nicotine production waste water is adjusted to make the waste water acid, and then flocculating decolorizaiton and decontamination treatment is then conducted. The decolorized and decontaminated nicotine waste liquid is then decolorized through pulverized fuel ash, and through evaporation and membrane treatment, the waste water can reach the national second-level water emission standard (COD<200 mg/L).

Description

technical field [0001] The invention relates to the field of nicotine production wastewater treatment, in particular to a process for fly ash decolorization and evaporation membrane treatment of refined nicotine production wastewater. Background technique [0002] Nicotine is an alkaline compound that can react with a variety of inorganic acids and organic acids to form salts and become bound nicotine. This bound nicotine is easily soluble in water and organic solvents, and the nicotine salt will decompose under alkaline conditions Produces free nicotine, which is volatile. Nicotine is an important medicine and chemical raw material. Nicotine can be used to produce high-efficiency green insecticides and biological pesticides. It is also a special raw material for the development of drugs for the treatment of cardiovascular, skin, snake bites and other diseases. [0003] At present, various processes for extracting and purifying nicotine will generate a large amount of nicot...

Claims

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Application Information

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IPC IPC(8): C02F9/10C02F103/36C02F101/34
CPCC02F1/001C02F1/048C02F1/281C02F1/441C02F1/442C02F1/444C02F1/5236C02F1/66C02F9/00C02F2101/34C02F2103/36
Inventor 刘凤霞王莹谢英男薛刚杨海朝张明璐孙义安卞显玲徐邦
Owner 河南顺天生物科技有限公司
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