Comparison of Calcium Oxide and Calcium Peroxide Pretreatments of Wheat Straw for Improving Biohydrogen Production | Zendy

Jishi Zhang | Zendy; Chunduo Kong | Zendy; Mengchen Yang | Zendy; Lihua Zang | Zendy

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Comparison of Calcium Oxide and Calcium Peroxide Pretreatments of Wheat Straw for Improving Biohydrogen Production

Author(s) -

Jishi Zhang,

Chunduo Kong,

Mengchen Yang,

Lihua Zang

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b04368

Subject(s) - biohydrogen , straw , chemistry , yield (engineering) , hydrogen peroxide , calcium oxide , calcium , biodegradation , agronomy , pulp and paper industry , hydrogen production , biochemistry , materials science , biology , metallurgy , inorganic chemistry , organic chemistry , catalysis , engineering

Wheat straw was pretreated with either CaO 2 or CaO to improve biohydrogen production. Both CaO and CaO 2 pretreatments improved the biodegradability of the wheat straw. CaO pretreatment raised the H 2 yield by between 48.8 and 163.9% at CaO contents ranging from 2 to 4%. The highest H 2 yield [144 mL/g total solid (TS)] was obtained at 121 °C and 6% CaO. In addition, the highest H 2 yield from wheat straw pretreated at the same temperature and dosage of CaO 2 was 71.8 mL/g TS, which was higher than that of the control group (43.2 mL/g TS), with hot water (121 °C) treatment. Considering pretreatment costs and H 2 production potential, CaO was a better pretreatment agent than CaO 2 .

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