Anaerobic treatment of hydrothermally solubilised sugarcane bagasse and its kinetic modelling

被引：7

作者：

Liu, Bing ^{[1
]}

Ngo Van Anh ^{[2
]}

Terashima, Mitsuharu ^{[1
]}

Yasui, Hidenari ^{[1
]}

机构：

[1] Univ Kitakyushu, Fac Environm Engn, 1-1 Hibikino, Kitakyushu, Fukuoka 8080135, Japan

[2] VNU Univ Sci, Dept Environm Technol, 334 Nguyen Trai St, Hanoi 10000, Vietnam

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 234卷

关键词：

Anaerobic digestion; Bagasse; Biorefinery; Reaction kinetics; Soluble carbohydrate; Steam-explosion; ETHANOLOGENIC ESCHERICHIA-COLI; HYDROLYSIS KINETICS; BIOREFINERY CONCEPT; PROCESS DESIGN; ENERGY CROPS; BIOETHANOL; DIGESTION; ADM1; OPPORTUNITIES; FERMENTATION;

D O I：

10.1016/j.biortech.2017.03.024

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study was the evaluation of anaerobic treatment for the soluble organics generated from a steam-explosion pre-treatment of sugarcane bagasse. The batch analysis revealed that about 50% of the organics was possible to be degraded into methane whilst the rest was biologically inert and composed of mostly lignin. Based on the experiment a kinetic model composed of 14 kinds of soluble substances and 5 kinds of anaerobic microorganisms was developed. The model was used to simulate the process performance of a continuous anaerobic bioreactor with MLSS concentration at 2500-15,000 mg/L. The simulation indicated that the bioreactor could receive the influent until 0.4 kg-COD/kg-MLSS/d of loading without significant deterioration of methane conversion. By addition of powdered activated carbon, the rest of unbiodegradable soluble organics and dark brown colour in the effluent were removed to 840 mg-C/L and 760 unit respectively at adsorption of 190 mg-C/g-PAC and 1200 unit/g-PAC. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：253 / 263

页数：11

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