Recycling of alkaline solution for producing bioenergy from rice husk waste

Chunghsien Tsai, Wanting Zeng, Hsun-Ling Bai*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Utilizing rice husk residue for producing bioethanol avoids the disposal of rice husk as a waste, while affording a stable and economic supply of feedstock for bioenergy production. However, the tight chemical binding of lignocellulosic components limits the complete utilization of cellulosic component during the bioconversion process. Thus, pretreatment is required to alter the structure of the cellulosic biomass and to increase the accessibility of the cellulose component to the enzymes. The possibility of recycling the alkaline solution for pretreatment and optimizing the glucose yield of the alkaline peroxide pretreatment process were studied. Stable and high glucose yields were demonstrated during 10 cyclic recovery tests; thus it is possible to recycle the residual solution after alkaline peroxide pretreatment for bioenergy production. By means of cyclic recovery of the pretreatment solution, chemical consumption and waste production rate can be effectively minimized. This is an abstract of a paper presented at the AWMA's 107th Annual Conference & Exhibition (Long Beach, CA 6/24-27/2014).

Original languageEnglish
Title of host publication107th Air and Waste Management Association Annual Conference and Exhibition, ACE 2014
PublisherAir and Waste Management Association
Number of pages5
ISBN (Electronic)9781634397322
StatePublished - 2014

Publication series

NameProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
ISSN (Print)1052-6102


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