Application of magnetite supplementation for enhancing biohydrogen production using Gelidium amansii hydrolysate

被引:4
作者
Kim, Do-Hyung [1 ]
Kang, Beom-Jung [2 ,3 ]
Kim, Sang-Hyoun [3 ]
Park, Jeong-Hoon [1 ]
Yoon, Jeong-Jun [2 ]
机构
[1] Korea Inst Ind Technol KITECH, Sustainable Technol & Wellness R&D Grp, Jeju Si 63243, South Korea
[2] Korea Inst Ind Technol KITECH, Green & Sustainable Mat R&D Dept, Cheonan 31056, South Korea
[3] Yonsei Univ, Sch Civil & Environm Engn, Seoul 03722, South Korea
基金
新加坡国家研究基金会;
关键词
Biohydrogen; Biomass hydrolysis; Clostridium species; Gelidium amansii; Magnetite; BIO-HYDROGEN PRODUCTION; SUSTAINABLE FEEDSTOCK; OXIDE NANOPARTICLES; FERROUS IRON; CLOSTRIDIUM; ACID; FERMENTATION; EFFLUENT; BUTANOL; BIOMASS;
D O I
10.1016/j.fuel.2022.127207
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Acid hydrolysis of biomass generates a high concentration of hydrolysis by-products, which must be removed. Magnetite (Fe3O4) supplementation can reduce the amount of powdered activated carbon (PAC) input required for detoxification by increasing hydrogen productivity and alleviating the inhibitory effects of hydrolysis byproducts. In this study, sugars were extracted by acid hydrolysis of Gelidium amansii, and hydrogen production using this was quantified with the magnetite supplementation. The total sugar concentration of 0.5 % H2SO4 hydrolysate was 24.4 g/L, including 3.7 g/L of glucose, 18.9 g/L galactose, and 1.7 g/L of arabinose, as well as hydrolysis by-products of 0.9 g/L of formic acid, 1.2 g/L of levulinic acid, and 11.4 g/L of 5-hydroxymethylfurfural (5-HMF). Magnetite supplementation at a concentration of 1.3 g/L or less in 5-HMF, the main by-product, increased hydrogen production by an average of 11.4 %. This strategy will optimize future biohydrogen production processes using Gelidium amansii and reduce detoxification costs.
引用
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页数:10
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