Co-digestion of untreated macro and microalgal biomass for biohydrogen production: Impact of inoculum augmentation and microbial insights

被引：24

作者：

Sivagurunathan, Periyasamy ^{[1
,2
]}

Kumar, Gopalakrishnan ^{[3
]}

Kobayashi, Takuro ^{[4
]}

Xu, Kaiqin ^{[4
,5
]}

Kim, Sang-Hyoun ^{[3
]}

Dinh Duc Nguyen ^{[6
]}

Chang, Soon Woong ^{[6
]}

机构：

[1] Ton Duc Thang Univ, Green Energy Technol Res Grp, Ho Chi Minh City, Vietnam

[2] Ton Duc Thang Univ, Fac Environm & Labour Safety, Ho Chi Minh City, Vietnam

[3] Yonsei Univ, Sch Civil & Environm Engn, Seoul 03722, South Korea

[4] Natl Inst Environm Studies, Ctr Mat Cycles & Waste Management Res, Tsukuba, Ibaraki 3058506, Japan

[5] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai, Peoples R China

[6] Kyonggi Univ, Dept Environm Energy Engn, 94 San, Suwon 16227, Gyeonggi Do, South Korea

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 25期

基金：

新加坡国家研究基金会; 奥地利科学基金会;

关键词：

Algal biofuels; Microalgae; Macroalgae; Co-digestion; Hydrogen; Mixed culture; FERMENTATIVE HYDROGEN-PRODUCTION; METHANE PRODUCTION; DARK FERMENTATION; ALGAL BIOMASS; WASTE-WATER; FATTY-ACIDS; GALACTOSE; REACTOR; GLUCOSE; CARBON;

D O I：

10.1016/j.ijhydene.2018.02.193

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：

This study assessed the co-digestion of macro and microalgal biomass towards the improvement of hydrogen production. The red macroalgal biomass (Gelidium amansii) and green mixed microalgal biomass was mixed in a ratio of 8:2, with an initial substrate concentration of 10 g/L, and various amount of inoculum addition range from 3 to 15% (v/v) was evaluated to assess the feasible substrate to inoculum ratio for the effective co-digestion of the algal biomass. The results showed that the co-digestion with 6% inoculum addition provided the peak hydrogen yield of 45 mL/g dry biomass added with a high hydrogen content of 24% in the gas phase. The other tested conditions showed moderate hydrogen content in the range of 17-22%, respectively. These results suggest that anaerobic co-digestion of macro and microalgal biomass, with appropriate initial biomass loading (6%) is essential for enhanced hydrogen production. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11484 / 11492

页数：9

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