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首页> 外文期刊>Water Environment Research >Modified anaerobic digestion model No.1 (ADM1) for modeling anaerobic digestion process at different ammonium concentrations
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Modified anaerobic digestion model No.1 (ADM1) for modeling anaerobic digestion process at different ammonium concentrations

机译：改进的1号厌氧消化模型（ADM1）用于模拟不同铵浓度下的厌氧消化过程

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摘要

Practitioner pointsADM1_ac could simulate MP and acetate, propionate and butyrate concentrations better.ADM1_va could explain the valerate production during AD of glucose.ADM1_ac_va could simulate AD process quite accurately, with the highest goodnessoffit values (0.85).Acetate inhibition and valerate existence were both important and should be considered in ADM1.Anaerobic digestion (AD) is an established method for sustainable energy production. Anaerobic digestion model No.1 (ADM1) was used to simulate methane production (MP) and volatile fatty acid (VFA) concentrations at different ammonium concentrations. In accordance with the incomplete description of several biochemical reactions and the omission of several reaction processes, ADM1 was modified with the consideration of acetic acid inhibition and valeric acid existence. ADM1_ac (ADM1 added acetic acid inhibition) could obtain better simulation accuracy of MP (goodnessoffit value = 0.945), and VFA concentrations (goodnessoffit values  0.39) were all higher than ADM1_original, but cannot explain the valeric acid production. ADM1_va (ADM1 added valeric acid existence) could achieve better simulation of valeric acid (achieving a breakthrough of zero), nevertheless the accuracy of propionic and butyric acids was poorer than ADM1_ac with differences between experimental and simulation values were 5%10% lower. With both factors coordinated, MP and VFA concentrations could be simulated accurately by ADM1_ac_va (ADM1 added acetic acid inhibition and valeric acid existence), with the highest goodnessoffit values (0.85). The results of a verification experiment with ADM1_ac_va simulation further indicated that acetic acid inhibition and valeric acid as new component were both important in ADM1.
机译：练习者要点ADM1_ac可以更好地模拟MP和乙酸盐，丙酸和丁酸的浓度.ADM1_va可以很好地解释葡萄糖AD期间的戊酸生成.ADM1_ac_va可以非常准确地模拟AD过程，优度值最高（> 0.85）。厌氧消化（AD）是可持续能源生产的既定方法。使用1号厌氧消化模型（ADM1）来模拟不同铵浓度下的甲烷生成（MP）和挥发性脂肪酸（VFA）浓度。根据几个生化反应的不完整描述和几个反应过程的省略，考虑到乙酸的抑制作用和戊酸的存在，对ADM1进行了修饰。 ADM1_ac（ADM1添加了乙酸抑制作用）可以获得更好的MP模拟精度（goodoffoff值= 0.945），并且VFA浓度（goodoffoff值> 0.39）都高于ADM1_original，但不能解释戊酸的产生。 ADM1_va（存在ADM1加入戊酸）可以更好地模拟戊酸（达到零突破），但是丙酸和丁酸的准确度比ADM1_ac差，实验值与模拟值之间的差异低5％10％。在这两个因素相互协调的情况下，可以通过ADM1_ac_va（ADM1添加了乙酸抑制作用和戊酸存在）准确地模拟MP和VFA浓度，其goodoffoff值最高（> 0.85）。通过ADM1_ac_va模拟进行的验证实验结果进一步表明，乙酸抑制作用和戊酸作为新成分在ADM1中均很重要。

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  • 来源
    《Water Environment Research》 |2019年第8期|700-714|共15页
  • 作者

    XiaonanLi; ZiyiYang; GuangqingLiu; ZonghuMa; WenWang;

  • 作者单位

    Biomass Energy and Environmental Engineering Research Center,Beijing University of Chemical Technology,Beijing,China;

    Biomass Energy and Environmental Engineering Research Center,Beijing University of Chemical Technology,Beijing,China;

    Biomass Energy and Environmental Engineering Research Center,Beijing University of Chemical Technology,Beijing,China;

    China Huadian Engineering Company Limited,Beijing,China;

    Biomass Energy and Environmental Engineering Research Center,Beijing University of Chemical Technology,Beijing,China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    ADM1; ammonia inhibition; anaerobic digestion;

    机译：ADM1;氨抑制;厌氧消化;

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