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Simulation research on anaerobic digestion biogas generation from low-grade biomass

LI Heng1, KE Lanting2, WANG Haitao2, ZHENG Yanmei2, WANG Yuanpeng2, HE Ning2, LI Qingbiao1,2,3   

  1. 1 Department of Environmental Science and Engineering, School of Environment & Ecology, Xiamen University, Xiamen 361102, Fujian, China;
    2 Department of Chemical and Biochemical Engineering, School of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
    3 School of Chemistry and Life Science, Quanzhou Normal University, Quanzhou 362000, Fujian, China
  • Received:2013-12-31 Revised:2014-02-18 Online:2014-05-05 Published:2014-05-05
  • Supported by:

    supported by the National Basic Research Program of China (2013CB733505).

低劣生物质厌氧产甲烷过程的模拟研究进展

李恒1, 柯蓝婷2, 王海涛2, 郑艳梅2, 王远鹏2, 何宁2, 李清彪1,2,3   

  1. 1 厦门大学环境与生态学院环境科学与工程系, 福建 厦门 361102;
    2 厦门大学化学化工学院化学工程与生物工程系, 福建 厦门 361005;
    3 泉州师范学院化学与生命科学学院, 福建 泉州 362000
  • 通讯作者: 李清彪
  • 基金资助:

    国家重点基础研究发展计划项目(2013CB733505)。

Abstract: Anaerobic digestion of low-grade biomass has attracted increasing interest in reducing greenhouse gas emission and facilitating sustainable development of energy supply. The theory of anaerobic digestion biogas generation and feedstocks are presented in this paper. It provides a review on mathematical model of and simulation research on the conversion of C, N, P in the process of anaerobic digestion. First order kinetic model is the simplest mathematical model which can simulate the dynamics of methane production. The advanced mathematical ADM1 is most popular, and simulates the conversion of C, N, P in anaerobic digestion. The model, simulation subjects and results of anaerobic digestion biogas generation of common substrates are given. Methane yield is the main subject of simulation investigation which is studied in almost all simulation researches on anaerobic digestion biogas generation, and some research reports the variation of volatile solid, volatile fatty acid, COD, CH4, CO2 and inorganic carbonate in the process of anaerobic digestion through mathematical modeling, with which the conversion of C can be determined. Simulation researches on the conversion of N include variations of ammonia nitrogen, inorganic nitrogen and total nitrogen. Simulation research on the conversion of P from sludge digestion is also presented. The challenges and future research trends of the conversion of C, N, P in the process of anaerobic digestion are forecasted.

Key words: anaerobic digestion, biomass, methane, conversion of C, N, P, mathematical modeling

摘要: 低劣生物质厌氧消化可以减少温室气体的排放并且生产生物甲烷作为能源。介绍了关于厌氧消化过程、底物的相关理论,还对目前主要用于厌氧产甲烷过程研究的数学模型以及碳氮磷转化的模拟研究进行了综述。其中,一级动力学模型是最为简单的数学模型,其可以通过简单的计算得到整个过程中甲烷产量随着时间的变化曲线,但是只限于较准确模拟甲烷产率的ADM1模型相对发展最为全面、应用最为广泛,且能够针对具体要研究的对象进行模型的修改。同时总结了较为常见的底物厌氧产甲烷研究模型、研究对象及结果、已有碳/氮/磷转化模拟研究及相关研究,并对开展针对厌氧产甲烷过程中碳氮磷转化的模拟研究进行了展望。

关键词: 厌氧消化, 生物质, 甲烷, 碳氮磷转化, 数学模拟

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