Impact of metal nanoparticles on biogas production from poultry litter

被引：102

作者：

Hassanein, Amro ^{[1
,2
]}

Lansing, Stephanie ^{[1
]}

Tikekar, Rohan ^{[3
]}

机构：

[1] Univ Maryland, Dept Environm Sci & Technol, College Pk, MD 20742 USA

[2] Arish Univ, Fac Environm Agr Sci, North Sinai, Egypt

[3] Univ Maryland, Dept Nutr & Food Sci, College Pk, MD 20742 USA

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 275卷

关键词：

Anaerobic digestion; Nanotechnology; Methane; Hydrogen sulfide; WASTE-ACTIVATED-SLUDGE; IRON-OXIDE NANOPARTICLES; ANAEROBIC-DIGESTION; METHANE PRODUCTION; METHANOGENIC ACTIVITY; HYDROGEN-SULFIDE; REMOVAL; STABILIZATION; BROILER; NZVI;

D O I：

10.1016/j.biortech.2018.12.048

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effects of metal nanoparticle (NP) addition during anaerobic digestion (AD) of poultry litter was tested using two sequential experiments: Exp. A) four NPs (Fe, Ni, Co, and Fe3O4) at three concentrations; and Exp. B) NP combinations (Fe, Ni, and Co) at four concentrations. Scanning electronic microscopy (SEM) and elemental analysis were used to confirm NP inclusion after dispersion (before AD) and track nanoparticles post-AD, and new technique for NP extraction post-AD was developed. Before AD, NPs ranged from 30.0 to 80.9 nm for Fe, Ni, and Co, and 94.3 to 400 nm for Fe3O4. Methane production increased with NPs addition compared to poultry litter-only, with the highest increases observed with NPs concentrations (in mg/L) of 12 Ni (38.4% increase), 5.4 Co (29.7% increase), 100 Fe (29.1% increase), and 15 Fe3O4 (27.5% increase). Nanoparticle mixtures greatly decreased H2S production. The SEM post-AD detected Fe, Ni, and Fe3O4 at concentrations >= 100 mg/L.

引用

页码：200 / 206

页数：7

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