Feed control of anaerobic digestion processes for renewable energy production: A review

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• 作者：Daniel Gaida^a ; ^{daniel.gaida@th-koeln.de} ; Christian Wolf^b ; ^{wolf@bavmail.de} ; Michael Bongards^a ; ^{michael.bongards@th-koeln.de}
• 关键词：ABP ; Agricultural Biogas Plant ; AD ; Anaerobic Digestion ; ADM1 ; Anaerobic Digestion Model No. 1 ; BSM2 ; Benchmark Simulation Model No. 2 ; COD ; Chemical Oxygen Demand ; D ; Dilution Rate ; IA/TA ; Ratio of Intermediate Alkalinity over Total Alkalinity ; MIMO ; Multiple-Input and Multiple-Output ; ORP ; Oxidation / Reduction Potential ; SISO ; Single-Input and Single-Output ; TOC ; Total Organic Carbon ; TA ; Total Alkalinity ; TS ; Total Solids Content ; VFA ; Volatile Fatty Acids ; VFA/TA ; Ratio of Volatile Fatty Ac
• 刊名：Renewable and Sustainable Energy Reviews
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：68
• 期：part_P2
• 页码：869-875
• 全文大小：805 K
• 卷排序：68

文摘

Over the last 40 years many different control methodologies for substrate feed control of anaerobic digestion processes have been proposed in order to increase plant efficiency and sustainable long-term energy production. This review shows that although sophisticated controllers exist, full-scale biogas plants are mostly still operated without a closed-loop feed control. No matter which application, such control always has to find a compromise between maximizing economic yield, minimizing the ecological footprint and minimizing the risk of process failure. For anaerobic wastewater treatment, control systems which come close to this ideal, exist, but for agricultural as well as industrial biogas plants such control has not yet been developed and neither been successfully implemented and validated at full-scale. Main challenges are a lack of robust and reliable process monitoring using online instrumentation as well as a conservative industry which is reluctant towards the implementation of fully automated process control strategies.