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Pre-treatments for enhanced biochemical methane potential of bamboo waste

Shen, Shaochuan LU ; Ivo Achu, Nges LU ; Yun, Junxian LU and Liu, Jing LU (2014) In Chemical Engineering Journal 240. p.253-259
Abstract
Various pre-treatments (acid, alkaline, enzyme and alkaline aided enzyme also termed combined) were evaluated on different fractions of bamboo waste from a chopstick production factory. Chemical oxygen demand (COD) solubilisation, monomeric/dimeric sugar yield, methane yield enhancement and methane production rate were assessed. The biochemical methane potential was determined in batch assays under mesophilic conditions (37 1 C) using the Automatic Methane Potential Test System (AMPTS-II). Pre-treatments led to enhanced COD solubilisation as compared to raw sample. Alkaline aided enzymatic pre-treatment led to the highest sugar yield, comparable to the theoretical yield. However, high sugar yield did not translate to high methane yield.... (More)
Various pre-treatments (acid, alkaline, enzyme and alkaline aided enzyme also termed combined) were evaluated on different fractions of bamboo waste from a chopstick production factory. Chemical oxygen demand (COD) solubilisation, monomeric/dimeric sugar yield, methane yield enhancement and methane production rate were assessed. The biochemical methane potential was determined in batch assays under mesophilic conditions (37 1 C) using the Automatic Methane Potential Test System (AMPTS-II). Pre-treatments led to enhanced COD solubilisation as compared to raw sample. Alkaline aided enzymatic pre-treatment led to the highest sugar yield, comparable to the theoretical yield. However, high sugar yield did not translate to high methane yield. The best pre-treatment in terms of methane yield was alkaline pre-treatment which resulted in a surplus of up to 88% methane yield. There was a positive correlation between dissolved COD and methane yield. Methane yield and methane production rate also increased with decreasing particle sizes. In all investigated scenarios, pre-treatment led to an improved methane production rate as compared to the raw samples. These results demonstrated that alkaline pre-treatment at ambient temperature was an efficient treatment option to improve methane yield of bamboo waste. (C) 2013 Elsevier B.V. All rights reserved. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Anaerobic digestion, Bamboo waste, Lignocelluloses, Methane yield, Pre-treatment, Sugars
in
Chemical Engineering Journal
volume
240
pages
253 - 259
publisher
Elsevier
external identifiers
  • wos:000331782500030
  • scopus:84890829753
ISSN
1385-8947
DOI
10.1016/j.cej.2013.11.075
language
English
LU publication?
yes
id
cf1c959c-1c13-4ac5-b73b-3a580f56db30 (old id 4363629)
date added to LUP
2014-04-22 15:38:10
date last changed
2017-10-08 03:56:14
@article{cf1c959c-1c13-4ac5-b73b-3a580f56db30,
  abstract     = {Various pre-treatments (acid, alkaline, enzyme and alkaline aided enzyme also termed combined) were evaluated on different fractions of bamboo waste from a chopstick production factory. Chemical oxygen demand (COD) solubilisation, monomeric/dimeric sugar yield, methane yield enhancement and methane production rate were assessed. The biochemical methane potential was determined in batch assays under mesophilic conditions (37 1 C) using the Automatic Methane Potential Test System (AMPTS-II). Pre-treatments led to enhanced COD solubilisation as compared to raw sample. Alkaline aided enzymatic pre-treatment led to the highest sugar yield, comparable to the theoretical yield. However, high sugar yield did not translate to high methane yield. The best pre-treatment in terms of methane yield was alkaline pre-treatment which resulted in a surplus of up to 88% methane yield. There was a positive correlation between dissolved COD and methane yield. Methane yield and methane production rate also increased with decreasing particle sizes. In all investigated scenarios, pre-treatment led to an improved methane production rate as compared to the raw samples. These results demonstrated that alkaline pre-treatment at ambient temperature was an efficient treatment option to improve methane yield of bamboo waste. (C) 2013 Elsevier B.V. All rights reserved.},
  author       = {Shen, Shaochuan and Ivo Achu, Nges and Yun, Junxian and Liu, Jing},
  issn         = {1385-8947},
  keyword      = {Anaerobic digestion,Bamboo waste,Lignocelluloses,Methane yield,Pre-treatment,Sugars},
  language     = {eng},
  pages        = {253--259},
  publisher    = {Elsevier},
  series       = {Chemical Engineering Journal},
  title        = {Pre-treatments for enhanced biochemical methane potential of bamboo waste},
  url          = {http://dx.doi.org/10.1016/j.cej.2013.11.075},
  volume       = {240},
  year         = {2014},
}