2024-03-28T22:24:10Z
https://tsukuba.repo.nii.ac.jp/oai
oai:tsukuba.repo.nii.ac.jp:00029284
2022-04-27T08:57:18Z
160:1251
160:1476
160:2172
3:62:5591:1612
Photocatalytic pretreatment for the redox conversion of waste activated sludge to enhance biohydrogen production
劉, 春光
楊, 英男
雷, 中方
張, 振亜
Liu, Chunguang
Shi, Wansheng
Kim, Mijung
Yang, Yingnan
Lei, Zhongfang
Zhang, Zhenya
© 2013 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd.
NOTICE: this is the author’s version of a work that was accepted for publication in International journal of hydrogen energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International journal of hydrogen energy, VOL38, ISSUE18, 2013,
http://dx.doi.org/10.1016/j.ijhydene.2013.03.147.
Photocatalytic pretreatment of waste activated sludge (WAS) using a flat photocatalytic reactor was undertaken. Photocatalytic pretreatment enhanced the release of soluble substances from WAS, in which the soluble protein and soluble carbohydrate concentration increased by about 50% and 80%, respectively. Significant removal of heavy metal ions from the liquid phase of WAS was also achieved after photocatalytic pretreatment. In addition, the highest hydrogen yield and the highest concentration of volatile fatty acids (VFAs) were achieved from the photocatalysis pretreated WAS by batch anaerobic digestion (55 °C). The cumulative hydrogen yield from photocatalysis pretreated WAS was 211.0 ml/l-sludge, much higher than those from UV pretreated WAS (111.0 ml/l-sludge) and from raw WAS (93.0 ml/l-sludge). The results indicate that photocatalysis is a promising WAS pretreatment method for the enhancement of biohydrogen production, probably due to the photo-oxidation of organics and simultaneous photo-reduction of heavy metal ions in WAS.
Elsevier Ltd.
2013-06
eng
journal article
http://hdl.handle.net/2241/119601
https://tsukuba.repo.nii.ac.jp/records/29284
10.1016/j.ijhydene.2013.03.147
0360-3199
AA00680410
International journal of hydrogen energy
38
18
7246
7252
https://tsukuba.repo.nii.ac.jp/record/29284/files/IJHE_38-18.pdf
application/pdf
449.9 kB
2013-12-25