Influence of gamma-ray irradiation on the biomethane production of sunflower seed cake

被引：0

作者：

Dima, Andreea D. ^{[1
,2
]}

Pârvulescu, Oana C. ^{[1
]}

Mateescu, Carmen ^{[2
]}

Lungulescu, Eduard M. ^{[3
]}

机构：

[1] Dept. of Chemical and Biochemical Engineering, University POLITEHNICA of Bucharest, Romania

[2] Dept. of Environment/Energy and Climate Change, National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Romania

[3] Dept. of Metallic, Composite and Polymeric Materials, National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Romania

来源：

UPB Scientific Bulletin, Series B: Chemistry and Materials Science | 2021年 / 83卷 / 01期

关键词：

Irradiation - Gamma rays - Substrates - Anaerobic digestion;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Batch mesophilic anaerobic digestion tests were performed to investigate the biogas and biomethane potential of sunflower seed cake (SuSC) after irradiation pretreatment applying various doses of γ-radiation (0-150 kGy). Sample exposure to γ-rays was carried out using a60Co source at a dose rate of 1.0 kGy/h. The experimental maximum biogas and biomethane yields were 312.4-557.2 mL/g VS and 141.2-336.5 mL/g VS, respectively, the maximum levels being achieved for untreated SuSC substrate. Compared to the untreated substrate, the biogas production of irradiated samples decreased by 1.3-1.8 times and that of biomethane by 1.2-2.4 times with an increase in the irradiation dose. Some hypotheses were discussed to explain the negative effect of γ-radiation on the process performances. Cone and modified Gompertz models were applied to predict the dynamics of biogas and biomethane production. © 2021, Politechnica University of Bucharest. All rights reserved.

引用

页码：59 / 72

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