Open AccessCombined MgO nanoparticle and microwave pre-treatment on biogas increase from Enteromorpha during anaerobic digestion
Author(s) -
Yue Shi,
Kaiguo Huang,
Renjie Feng,
Renjie Wang,
Guobing Liu,
Asad A. Zaidi,
Kun Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/450/1/012025
Subject(s) - anaerobic digestion , biogas , gompertz function , digestion (alchemy) , biogas production , yield (engineering) , pulp and paper industry , rice straw , chemistry , oxide , nanoparticle , materials science , methane , waste management , mathematics , straw , chromatography , nanotechnology , metallurgy , inorganic chemistry , engineering , organic chemistry , statistics
This study evaluated the anaerobic digestion of MgO metal-oxide nanoparticles combined with microwave pretreatment to increase biogas production from microalgae. The result shows the maximum total biogas yield of 342ml and 320ml were achieved by the MW pretreatment of 800W, 4min +15mg/L MgO NPs group and 600W, 6min +5mg/L MgO NPs group, which are 1.38 and 1.30 times compared to control, respectively. The influence of metallic oxide (MgO) NPs and MW pretreatment on anaerobic digestion of Enteromorpha resulted in significant increase in cumulative biogas production. The modified Gompertz equation and Logistic function model were used to simulate the nanoparticle-enhanced anaerobic digestion process, which demonstrate that the modified Gompertz equation can better simulate the fermentation process of microalgae.