Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for processing proteins in potato starch production wastewater

A potato starch and production wastewater technology, which is applied in food industry wastewater treatment, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve problems such as high cost, unstable operation, complicated process, etc., and achieve extraction utilization rate Improve and ensure protein precipitation and improve the effect of separation

Active Publication Date: 2016-05-11
GUANGDONG HINAPHARM PHARMA CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have disadvantages such as high cost, incomplete treatment, complicated process, and unstable operation, which brings inconvenience to the popularization and application of the project.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for processing proteins in potato starch production wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A. Filter the yellow syrup water produced by the potato starch processing plant through a 50-mesh filter, take 1L of wastewater, and adjust the pH to about 4~5 with hydrochloric acid;

[0030] B. Combine urea, polyacrylamide, and CaCl 2 Prepare a mixed solution at the ratio of 13mg, 8mg, 5mg, add it to 1L of wastewater, stir slowly for 1~2 minutes, and let it stand for 1 hour.

[0031] C. Add polyaluminum chloride at a concentration of 500mg / L, stir slowly, stand for 1 hour, and take out the supernatant;

[0032] D. The precipitate is dehydrated, spray-dried and crushed to obtain a crude protein by-product with high added value.

Embodiment 2

[0034] A. Filter the yellow syrup water produced by the potato starch processing plant through a 100-mesh filter, take 1L of waste water, and adjust the pH to about 4~5 with glacial acetic acid;

[0035] B. Combine urea, polyacrylamide, and CaCl 2 Prepare a mixed solution at the ratio of 15mg, 10mg, and 6mg, add it to 1L of wastewater, stir slowly for 1 to 2 minutes, and let it stand for 1 hour.

[0036] C. Add polyaluminum chloride at a concentration of 500mg / L, stir slowly, stand for 1 hour, and take out the supernatant;

[0037] D. The precipitate is dehydrated, spray-dried and crushed to obtain a crude protein by-product with high added value.

Embodiment 3

[0039] A. Filter the yellow slurry water produced by the potato starch processing plant through a 200-mesh filter, take 1L of waste water, and adjust the pH to about 4~5 with glacial acetic acid;

[0040] B. Combine urea, polyacrylamide, and CaCl 2 Make a mixed solution at the ratio of 18mg, 13mg, 7mg, add it to 1L wastewater, stir slowly for 1~2 minutes, and let it stand for 1 hour.

[0041] C. Add polyaluminum chloride at a concentration of 500mg / L, stir slowly, stand for 1 hour, and take out the supernatant;

[0042] D. The precipitate is dehydrated, spray-dried and crushed to obtain a crude protein by-product with high added value.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a protein extraction process, and in particular, relates to a method for processing proteins in potato starch production wastewater. The method can perform extraction treatment on cleaning wastewater, sieving washing water, potato washing water and other various waste yellow serofluid, the waste yellow serofluid extraction utilization rate is increased significantly, an acid is added in the yellow serofluid so as to make the pH value decreased, and then a compound agent a is added to make colloidal-state proteins in the yellow serofluid to form flocs to be precipitated; after static precipitation is carried out for 1 h, a compound agent b is added, and then static precipitation is carried out for 1 h, so that the separation effect can be improved, and protein precipitation is ensured. The extraction rate of separation and extraction of the proteins in the wastewater reaches 90% or more. Through detection, the waste yellow serofluid treated by the method has the chemical oxygen demand COD of 0.027% that of waste yellow serofluid with the same volume, and has the biochemical oxygen demand BOD5 of 0.041% that of the waste yellow serofluid with the same volume, so as to fully reach national second-class water discharge standards.

Description

Technical field [0001] The invention relates to a protein extraction process, in particular to a protein processing method in potato starch production wastewater. Background technique [0002] Potatoes are an important raw material for producing starch. There are thousands of potato starch processing plants in my country, and there are widespread technical problems in wastewater treatment. The potato starch processing process produces a large amount of high-concentration organic wastewater containing starch and protein. According to the production process, it is divided into potato washing wastewater and yellow slurry water. Potato washing wastewater can be recycled through simple three-stage precipitation, and the yellow pulp water contains a lot of organic matter such as starch and protein. The wastewater is generally non-toxic and has good biochemical properties, but the discharge is large. The production of 1 ton of potato starch can produce 7 If the yellow slurry water of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F9/04C02F103/32
CPCC02F1/001C02F1/5236C02F1/56C02F1/66C02F9/00C02F2103/32
Inventor 周玉岩陶蕾梁剑平
Owner GUANGDONG HINAPHARM PHARMA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com