ORIGINAL RESEARCH
NaOH Pretreatment of Wheat Straw
at a Mesophilic Temperature: Effect on Hydrolysis
and Loss of Organic Carbon
Hao Jiang, Yong Zeng, Hong Nie, Yeqing Li, Jiangtao Ding, Hongjun Zhou
Institute of New Energy, State Key Laboratory of Heavy Oil Processing,
Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum,
Beijing 102249, China
Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum,
Beijing 102249, China
Submission date: 2016-02-24
Acceptance date: 2016-04-12
Publication date: 2016-07-22
Pol. J. Environ. Stud. 2016;25(4):1541–1548
KEYWORDS
TOPICS
Treatment and managementMethods for solid waste disposalEnvironmental managementPollution legislation and data collectionBioenergy from biomass
ABSTRACT
A common approach to increasing biogas production is enhancing the hydrolysis of wheat straw
by removing the lignin-using chemicals. However, partial organic matter will also dissolve into chemical
solutions during pretreatment, which leads to the loss of organic matter for the anaerobic digestion
process. The enzymatic hydrolysis of wheat straw and loss of total organic carbon increased with NaOH
concentration and pretreatment time. The results suggest that when evaluating a pretreatment method, not
just the hydrolysis but the loss of organic matter should be taken into consideration.
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