Method for extracting alkaloid by utilizing waste water and sludge of tobaccos

A technology for wastewater sludge and alkaloids, which is applied in water/sludge/sewage treatment, sludge treatment, chemical instruments and methods, etc., can solve the problem of not having too many alkaloids in the tailings, so as to improve the utilization value, Low relative safety, less loss of alkaloids

Inactive Publication Date: 2011-06-15
WUHAN DANYAXIANG TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Retrievable literature shows that similar foreign industries may adopt tobacco sheet production processes that are different from those in my country, such as other preparation processes for tobacco paste or other extraction processes for nicotine, etc. Maybe the tailings do not emit too much alkaloids , so there is no relevant report on the comprehensive utilization of this type of municipal solid waste

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  • Method for extracting alkaloid by utilizing waste water and sludge of tobaccos
  • Method for extracting alkaloid by utilizing waste water and sludge of tobaccos
  • Method for extracting alkaloid by utilizing waste water and sludge of tobaccos

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specific Embodiment approach

[0034] The "method for extracting alkaloids from tobacco flake wastewater sludge" provided by the present invention adopts the same principle of base activation and calcium base replacement for the two sludges to increase the extraction rate of the sludge. Its specific implementation is as follows:

[0035]"Sludge I": starting from the homogeneous pool of paper-making tobacco flake wastewater, the waste water was treated according to the "solid-liquid enrichment and separation method of paper-making tobacco flake wastewater" (application number 201010029028.X) published by the same inventor. Enrichment separation was performed and the resulting sludge solids were denoted as "Sludge I". The technological process of the method is: waste water→grid slag blocking→coagulation enrichment→sedimentation→sludge filter press→sludge I.

[0036] "Sludge II": starting from the sludge thickening tank of the current physicochemical-biochemical treatment facilities, the sludge is pretreated ...

Embodiment 1

[0044] Take 45kg of comprehensive wastewater from the homogeneous tank of the sewage treatment station of Hubei Xinye Tobacco Sheet Development Co., Ltd., and the wastewater is sent as a sample by Wuhan Green Environmental Protection Facility Operation Co., Ltd., and the amount of preparation is carried out in the laboratory (referring to the amount of pure alkaloid obtained is 1g-100g level) extraction test. Firstly, according to the "solid-liquid enrichment and separation method for papermaking tobacco flake wastewater" (application number 201010029028.X), the waste water was enriched and separated, and 1500 g of wet sludge of sludge I was obtained. The solid-liquid enrichment separation process is as follows:

[0045] Wastewater 45kg → pass through 50 mesh standard sieve → coagulation sedimentation → sludge suction filtration → obtain sludge I wet mud 1500g.

[0046] The coagulation agent used in the process of coagulation and sedimentation is prepared in advance according...

Embodiment 2

[0058] Take 10kg of sludge from the sludge concentration tank of the sewage treatment station of Hubei Xinye Tobacco Sheet Development Co., Ltd., and the sludge is sent as a sample by the Environmental Monitoring Station of Hanyang District, Wuhan City, and is pretreated and alkaloid extracted in the laboratory. First measure the dry sludge content of the sludge to be 8%, add AR grade Ca(OH) 2 160 g of powder was pretreated to obtain 4 kg of wet sludge of sludge II. Its preprocessing flow is as follows:

[0059] Sludge 10kg→adding pretreatment agent→coagulation concentration→sludge suction filtration→obtain 4kg of sludge II wet sludge.

[0060] After 4 kg of the obtained wet sludge was dried in an oven at 80-90° C. in stages, it was pulverized until all of it passed through a 180-mesh standard sieve, and 1000 g of dry sludge powder of sludge II was obtained. Divide the dry mud powder into 8 equal parts, each 125g, and carry out 8 cycles of "extraction-elution" operation resp...

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Abstract

The invention relates to a method for extracting alkaloid by utilizing waste water and sludge of tobaccos, which can ensure that waste water and sludge of the tobacco industry, particularly waste water and sludge of tobacco sheets can be reasonably utilized. According to basic group activation and calcium group replacement principles, a pretreating agent is added to sludge, and the alkaloid extraction is realized through a positive-reverse cycling extraction process of alternately carrying out solvent extraction and dilute acid elution. The method mainly comprises the following steps of: pretreating sludge; drying and pulverizing; extracting the solvent; and eluting with dilute sulphuric acid, wherein the alkaloid extraction ratio is 1-3 percent of the dry weight of the sludge; and measured by a high performance liquid chromatography (HPLC), the main ingredient (occupies 80 percent) of the extractive is nicotine sulfate, and the rest alkaloid ingredients are all nicotine homologues and derivatives, which can be alkaloids such as isonicotine, nornicotine, and the like. The solvent used in the method of the invention has no color, taste and toxicity, low flammability, relative safety, no influence on environment, extremely low process loss rate and recycling capability.

Description

technical field [0001] The invention belongs to the technical field of urban solid waste recycling and reuse, and particularly relates to a method for extracting alkaloids from tobacco industry wastewater sludge, especially tobacco sheet wastewater sludge. Background technique [0002] In recent years, the tobacco industry has used tobacco leaf fragments, tobacco powder, tobacco stems and other leftovers produced in the production process of cigarette factories to recreate tobacco sheets by papermaking methods, and add them to cigarettes after cutting the sheets. It has formed a scale in many cities in my country. chemical production. The wastewater discharged by these tobacco sheet manufacturers contains a large amount of suspended matter, the main components of which are tobacco leaf fine powder, short fine cellulose powder, fine lignin and fine tobacco stem powder. After the wastewater was treated by physicochemical-biochemical methods, a large amount of sludge solids wer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C07D401/04
Inventor 唐向兵王云祥胡丽军吴四和王凤兰刘志昌万超
Owner WUHAN DANYAXIANG TECH DEV
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