Fractal-like kinetics of the solid-state anaerobic digestion

被引：7

作者：

Wang, Zhi-Wu ^{[1
]}

Xu, Fuqing ^{[2
]}

Manchala, Karthik R. ^{[1
]}

Sun, Yewei ^{[1
]}

Li, Yebo ^{[2
]}

机构：

[1] Virginia Tech, Dept Civil & Environm Engn, Occoquan Lab, 9408 Prince William St, Manassas, VA 20110 USA

[2] Ohio State Univ, Ohio Agr Res & Dev Ctr, Dept Food Agr & Biol Engn, 1680 Madison Ave, Wooster, OH 44691 USA

来源：

WASTE MANAGEMENT | 2016年 / 53卷

关键词：

Methane production efficiency; Heterogeneous; Fractal dimension; Diffusion; Crowding; PARTICULATE ORGANIC-MATTER; METHANE FERMENTATION; DEGRADATION KINETICS; MOISTURE-CONTENT; MASS-TRANSFER; MODEL; VALIDATION; SELECTION; SLUDGE;

D O I：

10.1016/j.wasman.2016.04.019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Total solid content (TS) negatively impacts the methane production efficiency (MPE) of solid-state anaerobic digestion (SS-AD), to which the classic mass action-based kinetics failed to provide a unified explanation. This study revealed that SS-AD reactions actually follow the fractal-like kinetics in light of the surface reactions in crowded SS-AD environment packed with heterogeneous media. The fractal characteristics of the SS-AD kinetics were found increasingly pronounced as TS increased. This study represents the first attempt to resolve the dilemma in SS-AD kinetics with the application of fractal theory. Employing this new concept allows explaining the reduced MPE at high TS and offers an easy assessment of the fractal characteristics of the SS-AD media. (c) 2016 Published by Elsevier Ltd.

引用

页码：55 / 61

页数：7

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