Municipal waste biomass resource multistage hydrolysis saccharification method

A waste biomass and waste technology, applied in the direction of chemical recovery, fermentation, etc., can solve the problems of variable structure, small application range, complex biomass components, etc., to reduce secondary pollution, optimize process routes, and reduce production costs Effect

Active Publication Date: 2017-10-13
HUAIYIN TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex composition and variable structure of urban waste biomass, the patented technology for a single urban waste component cannot effectively solve its overall reuse problem
[0005] Therefore, although there are relatively mature methods for the hydrolysis and saccharification of lignocellulose and starch for reuse in this field, they have limitations such as a small application range and many by-products of a single technology, and cannot realize the utilization of urban waste biomass resources. mass reuse

Method used

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  • Municipal waste biomass resource multistage hydrolysis saccharification method
  • Municipal waste biomass resource multistage hydrolysis saccharification method
  • Municipal waste biomass resource multistage hydrolysis saccharification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Carry out multi-stage hydrolysis and saccharification of urban waste biomass resources according to the following steps

[0030] (1) Classify and collect 100g of leaves and branches, catering waste, and waste A4 paper to remove metal and glass impurities; dry leaves and branches at 80°C for 24 hours, and crush them through a 100-mesh sieve; gravitational sedimentation of food waste initially removes grease , to obtain the mixture; the A4 paper was crushed into cotton wool, and 300 mL of water was added to stir to make a pulp liquid;

[0031] Table 1 Raw material component analysis (I)

[0032]

[0033] (2) Add 500mL 0.5% NaOH to the garden waste powder, place it in an XO-SM100 ultrasonic microwave reaction system for 2 hours, the ultrasonic frequency of the instrument is 20KHZ, the microwave frequency is 1000MHZ, and the reaction temperature is 50°C. After the treatment is completed, centrifuge at 3000g for 5min to collect the precipitate and waste liquid...

Embodiment 2

[0040] Example 2: Carry out multi-stage hydrolysis and saccharification of urban waste biomass resources according to the following steps

[0041] (1) Classify and collect 100g of lawn and green belt pruning waste, catering waste, and discarded newspapers, and remove metal and glass impurities; lawn and green belt pruning waste should be dried at 80°C for 24 hours, and pulverized by a grinder through a 100-mesh sieve; Gravity settling of the waste preliminarily removes grease and obtains a mixture; the waste is cut and the paper is crushed into cotton wool, and 400mL of water is added to stir to make a pulp liquid;

[0042] Table 3 Raw material component analysis (Ⅱ)

[0043]

[0044] (2) Add 500mL 0.5% KOH to the lawn and green belt pruning waste powder, place it in an XO-SM100 ultrasonic microwave reaction system for 2 hours, the ultrasonic frequency of the instrument is 20KHZ, the microwave frequency is 1000MHZ, the reaction temperature is 50°C, and centrifuged at 3000g ...

Embodiment 3

[0051] Example 3: Carry out multi-stage hydrolysis and saccharification of urban waste biomass resources according to the following steps

[0052] (1) Classify and collect waste tree trunks, leaves and sawdust for greening, catering waste, and waste packaging cartons, each 500g, to remove metal and glass impurities; leaves and branches are dried at 80°C for 24 hours, and pulverized through a 100-mesh sieve; Preliminary sedimentation to remove grease to obtain a mixture; discarded packaging cartons are broken into cotton wool, and 500 mL of water is added to stir to make a pulp liquid;

[0053] Table 5 Raw material component analysis (Ⅲ)

[0054]

[0055] (2) Add 2500mL 0.5% NaOH to the landscaping waste powder, place it in an XO-SM100 ultrasonic microwave reaction system for 2 hours, the ultrasonic frequency of the instrument is 20KHZ, the microwave frequency is 1000MHZ, and the reaction temperature is 50°C. After the treatment is completed, centrifuge at 3000g for 5min and...

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Abstract

The invention discloses a municipal waste biomass resource multistage hydrolysis saccharification method. According to the municipal waste biomass resource multistage hydrolysis saccharification method, municipal waste biomass is divided into three kinds including landscaping waste, kitchen waste, and waste paper; a system used for preparing saccharification liquid via municipal waste biomass resource multistage hydrolysis is constructed based on the characteristics of biomass from different sources is constructed; complex ingredient synchronous hydrolysis is realized; and a solution containing a plurality of monosaccharides including glucose and xylose is prepared. The municipal waste biomass resource multistage hydrolysis saccharification method is capable of realizing green and high efficiency utilization of municipal waste biomass resources, providing the biochemical engineering and biorefinery with reliable raw materials, and possesses economical, social, and environment protection meanings.

Description

technical field [0001] The invention relates to the technical field of biomass energy and resources, specifically, a technology for preparing saccharification liquid by degrading urban waste biomass through a multi-stage hydrolysis system of chemical method and biological method. Background technique [0002] With the rapid development of economy and society, urban waste pollution is becoming more and more serious. How to effectively solve the problem of urban waste is imminent. At present, urban waste treatment methods mainly include landfill, composting and incineration, etc. These treatment methods do not carry out multi-level utilization according to the characteristics of waste components, effectively solve the problem of waste disposal, and waste precious resources. Exhaust gas emission pollution, water pollution and other secondary pollution. [0003] In recent years, researchers have been committed to the reuse of biomass resources such as straw and agricultural and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/20C12P19/14C12P19/02
CPCC12P19/02C12P19/14C12P19/20C12P2201/00Y02P20/582
Inventor 徐宁张总平戴本林朱安峰徐继明
Owner HUAIYIN TEACHERS COLLEGE
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