Effects of Laser Irradiation and Ni Nanoparticles on Biogas Production from Anaerobic Digestion of Slurry

被引：34

作者：

Abdelsalam, E. M. ^{[1
]}

Samer, M. ^{[2
]}

Attia, Y. A. ^{[1
]}

Abdel-Hadi, M. A. ^{[3
]}

Hassan, H. E. ^{[1
]}

Badr, Y. ^{[1
]}

机构：

[1] Cairo Univ, NILES, Giza 12613, Egypt

[2] Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, Egypt

[3] Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia 41522, Egypt

来源：

WASTE AND BIOMASS VALORIZATION | 2019年 / 10卷 / 11期

关键词：

Biogas; Laser radiation; Anaerobic digestion; Nanoparticles; Methane production; Manure; WASTE ACTIVATED-SLUDGE; METHANE PRODUCTION; ATP SYNTHESIS; IN-VITRO; MITOCHONDRIA; IRON; FERMENTATION; STIMULATION; REMEDIATION; RADIATION;

D O I：

10.1007/s12649-018-0374-y

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study investigated the simultaneous effects of nanoparticles (NPs) addition to rumen fluid (archaea source) and laser irradiation of the mixture on biogas production from anaerobic digestion of dairy manure. Where, the previous study reported that the addition of 2 mg L-1 nickel nanoparticles (Ni NPs) significantly (p<0.05) increased the biogas and methane volumes by 1.74 and 2.01 times compared to the control, respectively. The results indicated that the most efficient irradiation time was 2 h laser with the addition of 2 mg L-1 Ni NPs (p<0.05), which minimized the lag phase from 4 days to 1 day and the Hydraulic Retention Time (HRT) to attain the peak of biogas production in comparison to the control from 28 days to 16 days. The combination of laser irradiation and nanoparticles addition yielded the highest significant value of the specific biogas and methane production, compared to all treatments (incandescent light, control), which were 679.5 mL biogas g(-1) VS and 453.3 mL CH4 g(-1) VS. Furthermore, Laser photocatalysis of Ni NPs enhances the photo-reduction/photo-oxidation of CH4 formation pathways. Consequently, this treatment increased the biogas and methane volumes by 1.9 and 2.32 times the biogas and methane volumes resulted from the control, respectively.

引用

页码：3251 / 3262

页数：12

共 63 条

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