Mass transfer limitations in solid-state digestion

被引：25

作者：

Martin, DJ ^{[1
]}

机构：

[1] Sch Chem Environm & Min Engn, Nottingham, England

来源：

BIOTECHNOLOGY LETTERS | 1999年 / 21卷 / 09期

关键词：

diffusion; mass transfer; model; solid-state digestion; solid waste;

D O I：

10.1023/A:1005530412726

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The biodegradation of waste placed in layers was studied in 500-ml lysimeters, without leachate recycle. All four became methanogenic within 100 days but the steady-state biogas output only reached 0.09 l kg(-1) d(-1), whereas an earlier study on a mixed feedstock had yielded 1.8 l kg(-1) d(-1). A novel physical model of solid-state digestion is deduced, implying a crucial role for mass transfer processes, with successful operation only within a limited range of diffusion rates.

引用

页码：809 / 814

页数：6

共 9 条

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