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Integreted tech. from ginger processing and waste water treating

A waste water treatment and turmeric technology, applied in water/sewage treatment, neutralized water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of turmeric processing industry pollution, waste of resources, etc., and achieve obvious integration characteristics , full utilization of resources, compact development process

Inactive Publication Date: 2009-11-11
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Aiming at the serious pollution and waste of resources currently existing in the turmeric processing industry, the present invention proposes a set of clean production integration process

Method used

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  • Integreted tech. from ginger processing and waste water treating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1.2kg of soaked turmeric was pretreated to recover 74% of the total cellulose and 75% of the total starch slurry. After biological enzymatic conversion, 64% of the starch was converted into glucose products, and the glucose conversion rate was 85%. , The yield of saponin in the supercritical extraction process after acid hydrolysis is 82%, and the purity of saponin is 94% after testing.

[0050] The available hydrolyzed waste liquid produced in the process is subjected to the steps of pretreatment, strain domestication, medium supplementation, seed tank fermentation, fermentation tank fermentation and post-processing of fermentation liquid to obtain 62 g of Bacillus thuringiensis microbial pesticide.

[0051] The process flow produces a total of 500ml of wastewater, COD concentration of 46000mg / L, SO 4 2- The concentration is 24600mg / L, NH 4 + -N concentration is 900mg / L. After high-efficiency microbial treatment of industrial wastewater, the final effluent COD conce...

Embodiment 2

[0053] 1.4kg of soaked turmeric was pretreated to recover 75% of the total cellulose and 70% of the total starch slurry. After biological enzymatic conversion, 66% of the starch slurry was converted into glucose products, and the glucose conversion rate was 80%. %, the yield of saponin in the supercritical extraction process after acid hydrolysis is 82%, and the purity of saponin is 95% after testing.

[0054] The available hydrolyzed waste liquid produced in the process undergoes the steps of pretreatment, strain domestication, medium supplementation, seed tank fermentation, fermentation tank fermentation and post-processing of fermentation liquid to obtain 71 g of Bacillus thuringiensis microbial pesticide.

[0055] The technological process produces a total of 578ml of wastewater, the COD concentration is 45000mg / L, SO 4 2- The concentration is 24400mg / L, NH 4 + -N concentration is 890mg / L. After high-efficiency microbial treatment of industrial wastewater, the final eff...

Embodiment 3

[0057] 1.3kg of soaked turmeric was pretreated to recover 75% of the total cellulose and 72% of the total starch slurry. After biological enzymatic conversion, 67% of the starch slurry was converted into glucose products, and the glucose conversion rate was 81%. %, the yield of saponin in the supercritical extraction process after acid hydrolysis reaches 80%, and the purity of saponin is detected as 95%.

[0058] The available hydrolyzed waste liquid produced in the process is subjected to the steps of pretreatment, strain domestication, medium supplementation, seed tank fermentation, fermentation tank fermentation and post-processing of fermentation liquid to obtain 64 g of Bacillus thuringiensis microbial pesticide.

[0059] The technological process produces a total of 550ml of wastewater, the COD concentration is 46000mg / L, SO 4 2- The concentration is 24700mg / L, NH 4 + -N concentration is 900mg / L. After high-efficiency microbial treatment of industrial wastewater, the ...

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Abstract

An integrated process for preparing the products from yam and treating its sewage includes such steps as physical separation to obtain cellulose and starch paste, liquefying and saccharifying the starch paste to obtain sugar dreg, fermenting and acidolyzing to obtain saponin, transferring sugar liquid to obtain glocose, using the hydrolyzed sewage to prepare Bacillus thuringienis insecticide, and treating sewage.

Description

technical field [0001] The invention belongs to a material treatment process, specifically an integrated process from turmeric processing to waste water treatment. The pollutants discharged into sewage in the traditional production process - turmeric cellulose and starch pulp are fully utilized, so as to achieve full utilization of resources and clean production without pollution. This process not only obtains the main product saponin, but also obtains by-products cellulose, glucose and Bacillus thuringiensis microbial pesticides; the treatment of turmeric wastewater not only solves the problems of serious pollution and waste of resources in the industry, but also increases the added value of the industry . Background technique [0002] Turmeric is a unique variety in my country. Its scientific name is Dioscorea serrata, a medicinal plant. Its main economic value is to use its rhizomes to extract diosgenin, which is known as the "Gold in Medicine" in the world, for the prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/66C02F1/58C02F3/30D21C5/00C08B30/00C13K1/00A01N63/02
CPCY02P20/10
Inventor 倪晋仁王志民叶正芳黄文
Owner PEKING UNIV