Production of adhesives and other glue-like materials from biomass derived from wastewater treatment

Patent metadata

Field	Value
Publication number	US-10316229-B2
Application number	US-201816010647-A
Country	US
Kind code	B2
Filing date	Jun 18, 2018
Priority date	Mar 12, 2013
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A system and method for treatment of biomass originating from wastewater treatment biosolids to obtain valuable adhesives and composite materials is described herein. Some embodiments do not require purification of a biomass product or residue to produce an adhesive. Some embodiments comprise a treatment of post extraction biomass residue configured to produce an adhesive. Use of post extraction biomass residue adds value to alternative energy produced by extracting oil from biomass.

First claim

The invention claimed is:

1. A method for producing an adhesive from biomass products or residues, comprising the steps of:
a. obtaining a biomass comprising wastewater treatment biosolids;
b. extracting a component from said biomass, thereby generating a byproduct of said biomass;
c. grinding said byproduct of said biomass into a ground biomass byproduct;
d. wetting said ground biomass byproduct, creating a ground wetted biomass byproduct; and
e. combining said ground wetted biomass product with a solution, said solution configured to denature proteins in said ground wetted ground biomass product, creating a ground wetted biomass byproduct-solution mixture; and
f. mixing said byproduct-solution mixture to form an adhesive mixture.

2. The method of claim 1 , wherein the step of combining said ground wetted biomass product with a solution occurs at a temperature condition between approximately 20° C. and approximately 70° C. for a reaction time of between approximately 1 seconds and approximately 3 hours.

3. The method of claim 1 , wherein said combining step further comprises altering a level of denaturation of proteins in said ground wetted biomass byproduct-solution mixture by adjusting changing at least one of: a temperature condition, a treatment time, and concentration of constituents of the solution.

4. The method of claim 1 , further comprising a step of adding a preservative to said by-product-solution mixture before said mixing.

5. The method of claim 1 , further comprising a step of adding crosslinkers to said by-product-solution mixture before said mixing.

Assignees

• Univ Louisiana At Lafayette

Inventors

• Chirdon William

Classifications

• C09J189/04 Primary

  Products derived from waste materials, e.g. horn, hoof or hair · CPC title