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Method for retreating wastewater after pueraria starch processing

A kudzu root starch and reprocessing technology, which is applied in heating water/sewage treatment, organic chemistry, etc., can solve the problems of resource waste and achieve high production efficiency and short concentration time

Inactive Publication Date: 2017-03-08
十堰市绿田生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The existing problem is: the production process of kudzu starch only pays attention to the single product of starch, and the discharged wastewater contains puerarin, resulting in a great waste of resources

Method used

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  • Method for retreating wastewater after pueraria starch processing

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Embodiment Construction

[0018] combine figure 1 Shown, further describe a kind of structure of concentration tank device in the present invention: comprise waste water collection tank 1, steam generator 2, concentration tank device, electric heater 15, finished product collection pool 13, concentration tank device is three-stage concentration tank device , including a primary concentration tank 6, a secondary concentration tank 8, and a tertiary concentration tank 12, the outlet of the primary concentration tank 6 is connected to the inlet of the secondary concentration tank 8 through the first suction pump 17, the pipeline, and the secondary concentration The outlet of tank 8 is connected with the inlet of tertiary concentration tank 12 through second suction pump 16, pipeline;

[0019] The inlet of the first-stage concentration tank 6 is communicated with the waste water collection tank 1 through a water pump 18 and a pipeline, and the outlet of the three-level concentration tank 12 is connected to...

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Abstract

The invention provides a method for retreating wastewater after pueraria starch processing. The method particularly includes: collecting wastewater after pueraria starch extraction; adopting a concentration unit to heat for concentration and water volatilization to obtain puerarin size of 30-40% in water content; lyophilizing, and smashing to obtain puerarin. The concentration unit is adopted to heat for concentration and water volatilization, so that the wastewater after pueraria starch processing can be concentrated into the puerarin size of 30-40% in water content in one step, and convenience is brought to subsequently drying and smashing the puerarin size to obtain puerarin.

Description

technical field [0001] The invention relates to a method for reprocessing waste water after pueraria starch processing. Background technique [0002] At present, kudzu root starch production enterprises mostly use kudzu root as raw material, and obtain kudzu root starch through the following processing steps: 1. Clean the collected kudzu root; 2. Crush kudzu root to obtain kudzu root slurry; , to obtain starch-containing separation slurry; 4. The separation slurry is dehydrated and dried to obtain Pueraria starch, and the dehydrated waste water is directly discharged. [0003] The problem is that the production process of kudzu starch only pays attention to the single product of starch, and the discharged wastewater contains puerarin, which causes a great waste of resources. Contents of the invention [0004] In order to reuse the waste water after the pueraria starch is extracted, the invention proposes a method for reprocessing the waste water after the pueraria starch ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C07D407/04
Inventor 胥宝友刘咏梅程荣华操霞
Owner 十堰市绿田生物科技有限公司
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