Breakthrough in hydrolysis of waste biomass by physico-chemical pretreatment processes for efficient anaerobic digestion

Chemosphere ◽  
2022 ◽  
pp. 133617
Author(s):  
Preethi ◽  
Rajesh Banu J ◽  
Sunita Varjani ◽  
Sivashanmugam P ◽  
Vinay Kumar Tyagi ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Waste Biomass ◽  
Chemical Pretreatment ◽  
Physico Chemical ◽  
Hydrolysis Of ◽  
Pretreatment Processes

Influence of Pretreatment on Anaerobic Stabilisation of Sewage Sludge

1984 ◽  
Vol 16 (12) ◽  
pp. 365-373 ◽  
Author(s):  
F Wechs
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Short Term ◽  
Digested Sludge ◽  
Digestion Process ◽  
Reference Process ◽  
Stage Process ◽  
Rate Limiting ◽  
Hydrolysis Of ◽  
Pretreatment Processes

In order to intensify anaerobic stabilisation of sewage sludge, several pretreatment processes have been tested. Pretreatment processes investigated are: prepasteurisation, separate acidification, short-term anaerobic digestion. Anaerobic stabilisation was performed in 500 1 digestors. All experiments were performed in parallel to a process operated with untreated raw sludge, the later serving as a reference process. Prepasteurisation turned out to improve solids degradation and dewaterability of the digested sludge, whereas acidification was found to be a rather slow and uncomplete process due to the rate limiting function of hydrolysis of sludge particulates. Using a short-term anaerobic digestion process before anaerobic stabilisation, the easily degradable organics were readily converted to methane. It was shown that this two-stage process improves stabilisation efficiency in comparison to a 20 day one-stage process very significantly.

scholarly journals Evaluation Of Mechanical, Irradiation And Chemical Pretreatment Lignocelulosic Substrate For Enhanced Methane Production

2021 ◽  
Author(s):  
Zeid Amin
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Energy Recovery ◽  
Energy Reserve ◽  
Research Report ◽  
Chemical Pretreatment ◽  
Lignocellulosic Substrate ◽  
Different Types ◽  
Combined Pretreatment ◽  
Pretreatment Processes

Lignocellulosic substrate is a resource that contains a locked energy reserve that is normally lost during anaerobic digestion. Lignocellulosic substrate is one of the most abundant sources of organic matter available and yet its energy recovery has much room for improvement. Lignocellulosic substrate has cellular properties that are deemed extremely difficult to degrade due to complexity which is why this energy reserve is never unlocked during anaerobic digestion. There are several successful pretreatment methods that are used to degrade this lignocellulosic substrate and unlock this energy reserve. This paper will focus on the methods that include mechanical, irradiation, chemical and combined pretreatment processes. Analysis is conducted on all the studies that are obtained to compare the successes of the different types of pretreatment processes used. Each of the different listed pretreatment processes have different energy requirements, treatment times, and solvent requirement and are acting to enhancing methane production. The improvement in methane production varies from process to process and study to study creating a need to compile all of this valuable data into this research report. This will help future researchers in navigating the available studies of pretreatment of lignocellulosic substrate for improving methane production.

Comparison of Three Microwave/Chemical Pretreatment Processes for Enzymatic Hydrolysis of Rice Straw

2006 ◽  
Vol 93 (3) ◽  
pp. 279-283 ◽  
Author(s):  
Shengdong Zhu ◽  
Yuanxin Wu ◽  
Ziniu Yu ◽  
Cunwen Wang ◽  
Faquan Yu ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Rice Straw ◽  
Chemical Pretreatment ◽  
Hydrolysis Of ◽  
Pretreatment Processes

scholarly journals Evaluation Of Mechanical, Irradiation And Chemical Pretreatment Lignocelulosic Substrate For Enhanced Methane Production

2021 ◽  
Author(s):  
Zeid Amin
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Energy Recovery ◽  
Energy Reserve ◽  
Research Report ◽  
Chemical Pretreatment ◽  
Lignocellulosic Substrate ◽  
Different Types ◽  
Combined Pretreatment ◽  
Pretreatment Processes

Lignocellulosic substrate is a resource that contains a locked energy reserve that is normally lost during anaerobic digestion. Lignocellulosic substrate is one of the most abundant sources of organic matter available and yet its energy recovery has much room for improvement. Lignocellulosic substrate has cellular properties that are deemed extremely difficult to degrade due to complexity which is why this energy reserve is never unlocked during anaerobic digestion. There are several successful pretreatment methods that are used to degrade this lignocellulosic substrate and unlock this energy reserve. This paper will focus on the methods that include mechanical, irradiation, chemical and combined pretreatment processes. Analysis is conducted on all the studies that are obtained to compare the successes of the different types of pretreatment processes used. Each of the different listed pretreatment processes have different energy requirements, treatment times, and solvent requirement and are acting to enhancing methane production. The improvement in methane production varies from process to process and study to study creating a need to compile all of this valuable data into this research report. This will help future researchers in navigating the available studies of pretreatment of lignocellulosic substrate for improving methane production.

scholarly journals Improvement in the efficiency of hydrolysis of anaerobic digestion in sewage sludge by the use of enzymes

2010 ◽  
Vol 21 (1-3) ◽  
pp. 280-285 ◽  
Author(s):  
Ibrahim Gar Al-Alm Rashed ◽  
Joseph Akunna ◽  
Mohamed Mohamed El-Halwany ◽  
Ahmed Farag Fadil Abou Atiaa
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Hydrolysis Of

scholarly journals Low-temperature thermal hydrolysis of sludge prior to anaerobic digestion: principal component analysis (PCA) of experimental data

Data in Brief ◽  
2021 ◽  
pp. 107323
Author(s):  
Mohamed N.A. Meshref ◽  
Seyed Mohammad Mirsoleimani Azizi ◽  
Wafa Dastyar ◽  
Rasha Maal-Bared ◽  
Bipro Ranjan Dhar
Keyword(s):  
Experimental Data ◽  
Principal Component Analysis ◽  
Anaerobic Digestion ◽  
Low Temperature ◽  
Principal Component ◽  
Component Analysis ◽  
Thermal Hydrolysis ◽  
Hydrolysis Of

Optimization of thermo-chemical pretreatment and enzymatic hydrolysis of kitchen wastes

2014 ◽  
Vol 34 (1) ◽  
pp. 167-173 ◽  
Author(s):  
Aikaterini I. Vavouraki ◽  
Vassiliki Volioti ◽  
Michael E. Kornaros
Keyword(s):  
Enzymatic Hydrolysis ◽  
Chemical Pretreatment ◽  
Hydrolysis Of
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