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Process for producing alcohol from peltate yam processing waste water

A technology for processing wastewater and industrial alcohol, applied in the direction of fermentation, etc., can solve the problems of a large number of foams and the ineffective utilization of wastewater

Inactive Publication Date: 2005-05-18
郧西县怡江生物化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The waste water produced after turmeric processing has not been effectively used to produce industrial alcohol, mainly because it cannot solve the problem of a large amount of foam in the process of alcohol distillation

Method used

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Examples

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Embodiment Construction

[0004] The process for producing alcohol from turmeric processing wastewater of the present invention is to obtain industrial alcohol through processes such as neutralization pretreatment, alcohol fermentation, alcohol distillation and the like on the turmeric processing wastewater. In the neutralization pretreatment process, raise the temperature of the original acid water to 30°C-35°C, slowly add calcium hydroxide to make the pH value of the stock solution reach 4.2-4.5 for neutralization, and when the temperature rises to 50°C-60°C, stand still After 30 minutes, separate when the calcium sulfate has settled to 2 / 3 of the total volume, so that the removal rate of harmful organic matter reaches 75%, and the pH is controlled in the range of 4.2 to 4.4 when neutralizing in the original acid water. Use a vacuum filter to recover the sugar water, and then separate the slag liquid to obtain calcium sulfate and sugar water; in the alcohol fermentation process, the mature mash is obt...

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Abstract

The present invention relates to the technological process of producing alcohol with peltate yam processing effluent suitable for industrial production. The technological process includes neutralizing pre-treatment of peltate yam processing effluent, fermentation, and distillation to obtain industrial alcohol. The present invention features the material liquid temperature into the distillation of 90-95 deg.c, stuffing speed of 4.5-5 cu m / hr and clear water shower configured to the top of the coarse distillation tower to eliminate foam. The said technological process is suitable for industrial production.

Description

technical field [0001] The invention discloses a process for producing alcohol from turmeric processing wastewater, which belongs to a production process of industrial alcohol, and in particular relates to a process using turmeric processing wastewater as a raw material. Background technique [0002] The waste water produced after turmeric processing has not been effectively used to produce industrial alcohol, mainly because it cannot solve the problem of a large amount of foam in the process of alcohol distillation. Contents of the invention [0003] The purpose of the process of producing ethanol from turmeric processing wastewater is to provide a process suitable for industrial production by using turmeric processing wastewater to produce alcohol. The present invention is the industrial alcohol obtained by neutralizing and pretreating turmeric processing wastewater, alcohol fermentation, and alcohol distillation. It should be controlled to 4.5-5 cubic meters per hour, ...

Claims

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Application Information

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IPC IPC(8): C12P7/08
Inventor 吴晓进陈全志陈安章
Owner 郧西县怡江生物化工有限公司
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