Critical comparison of different model structures for the applied simulation of anaerobic digestion
Different model structures were compared to simulate the characteristic process parameters of the anaerobic digestion of maize,sugar beet and grain silage.Depending on the type and number of the required process variables it can be shown that in comparison to the Anaerobic Digestion Model No.1 (ADM1) different simplified model structures can describe the gas production rate,ammonia nitrogen and acetate concentration or pH value equally well.Since the reduction of the predominantly fast kinetics of the methanogenesis,acetogenesis or acidogenesis will only have little effect on the simulation of the specific gas production it can be proven that the hydrolysis is the rate limiting step during the uninhibited anaerobic digestion of complex particulate substrates.However,the stoichiometric comparison reveals that the model protein gelatine is not suitable for a representative characterisation of agricultural energy crops.
ADM1 energy crops kinetics model comparison simulation
S.Weinrich J.Liebetrau M.Nelles
Department of Biochemical Conversion, DBFZ-Deutsches Biomasseforschungszentrum, Torgauer Straβe 116, Department of Biochemical Conversion, DBFZ-Deutsches Biomasseforschungszentrum, Torgauer Straβe 116,
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
361-364
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）