Photocatalytic pretreatment for the redox conversion of waste activated sludge to enhance biohydrogen production

被引：20

作者：

Liu, Chunguang ^{[1
]}

Shi, Wansheng ^{[1
]}

Kim, Mijung ^{[1
]}

Yang, Yingnan ^{[1
]}

Lei, Zhongfang ^{[1
]}

Zhang, Zhenya ^{[1
]}

机构：

[1] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 18期

关键词：

Waste activated sludge; Photocatalytic pretreatment; Redox conversion; Anaerobic hydrogen production; Heavy metals; AQUEOUS TIO2 SUSPENSIONS; BIO-HYDROGEN PRODUCTION; ANAEROBIC-DIGESTION; METAL-IONS; WATER; MICROWAVE; FERMENTATION; ACID; REDUCTION; DARK;

D O I：

10.1016/j.ijhydene.2013.03.147

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 degrees 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. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：7246 / 7252

页数：7

共 36 条

[1] Peracetic acid oxidation as an alternative pre-treatment for the anaerobic digestion of waste activated sludge [J].

Appels, Lise ;

Van Assche, Ado ;

Willems, Kris ;

Degreve, Jan ;

Van Impe, Jan ;

Dewil, Raf .

BIORESOURCE TECHNOLOGY, 2011, 102 (05) :4124-4130

[2] Bio-hydrogen production by different operational modes of dark and photo-fermentation: An overview [J].

Argun, Hidayet ;

Kargi, Fikret .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (13) :7443-7459

[3] New trends in removing heavy metals from industrial wastewater [J].

Barakat, M. A. .

ARABIAN JOURNAL OF CHEMISTRY, 2011, 4 (04) :361-377

[4] Pretreatment methods to improve sludge anaerobic degradability: A review [J].

Carrere, H. ;

Dumas, C. ;

Battimelli, A. ;

Batstone, D. J. ;

Delgenes, J. P. ;

Steyer, J. P. ;

Ferrer, I. .

JOURNAL OF HAZARDOUS MATERIALS, 2010, 183 (1-3) :1-15

[5] Removal of toxic metal ions from wastewater by semiconductor photocatalysis [J].

Chen, D ;

Ray, AK .

CHEMICAL ENGINEERING SCIENCE, 2001, 56 (04) :1561-1570

[6] Photocatalytic reduction of divalent zinc and cadmium ions in aqueous TiO2 suspensions:: an interfacial induced adsorption-reduction pathway mediated by formate ions [J].

Chenthamarakshan, CR ;

Rajeshwar, K .

ELECTROCHEMISTRY COMMUNICATIONS, 2000, 2 (07) :527-530

[7]

Clesceri L.S., 1989, STANDARD METHODS EXA, P1644

[8] Effects of acid and alkaline pretreatments on the biohydrogen production from grass by anaerobic dark fermentation [J].

Cui, Maojin ;

Shen, Jianquan .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (01) :1120-1124

[9] The effect of acid pretreatment on the anaerobic digestion and dewatering of waste activated sludge [J].

Devlin, D. C. ;

Esteves, S. R. R. ;

Dinsdale, R. M. ;

Guwy, A. J. .

BIORESOURCE TECHNOLOGY, 2011, 102 (05) :4076-4082

[10] Extraction of extracellular polymers from activated sludge using a cation exchange resin [J].

Frolund, B ;

Palmgren, R ;

Keiding, K ;

Nielsen, PH .

WATER RESEARCH, 1996, 30 (08) :1749-1758

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