KK
Konrad Koch
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2 records found
1
From Treatment to Platform
Coupling Anaerobic Carbon Conversion with Nitrogen Removal and Phosphorus Recovery toward Circular Urban Biorefineries
Journal article
(2026)
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Guangze Guo, Christian Wurzbacher, Susanne Lackner, Mark C.M. van Loosdrecht, J.B. van Lier, Jörg E. Drewes, Yujie Chen, Yu-You Li, Konrad Koch
Resource recovery and nutrient management from organic waste streams are receiving more attention. Water and resource recovery facilities (WRRFs) are expected to support need-driven resource recovery at practical scale, with acceptable costs and reduced greenhouse gas (GHG) emissions. In many WRRFs, anaerobic digestion (AD) is widely implemented along the solids line for energy recovery and is frequently coupled with sidestream deammonification processes, such as partial nitritation/anammox (PN/A), to treat ammonium-rich flows from sludge dewatering. (1) In addition, phosphorus recovery is becoming an important component of resource recovery, with physicochemical units commonly installed for phosphorus precipitation and biological oxygen demand reduction before sidestream treatment. This configuration has enabled progress in resource recovery, but it remains largely fragmented and sidestream-centric. Carbon, nitrogen, and phosphorus removal and recovery are still optimized primarily in separate process units, with limited design attention given to how the quality of the anaerobic effluent affects subsequent nitrogen removal, phosphorus recovery, and emissions control. As a result, energy costs and GHG emissions are determined by not only biological conversion but also the energy demands for the thermal hydrolysis process (THP), aeration, chemical conditioning, and sidestream operation. The central challenge is therefore no longer simply to improve isolated unit operations, but to couple upstream carbon valorization with downstream low-carbon nutrient management within a coherent treatment framework.
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Resource recovery and nutrient management from organic waste streams are receiving more attention. Water and resource recovery facilities (WRRFs) are expected to support need-driven resource recovery at practical scale, with acceptable costs and reduced greenhouse gas (GHG) emissions. In many WRRFs, anaerobic digestion (AD) is widely implemented along the solids line for energy recovery and is frequently coupled with sidestream deammonification processes, such as partial nitritation/anammox (PN/A), to treat ammonium-rich flows from sludge dewatering. (1) In addition, phosphorus recovery is becoming an important component of resource recovery, with physicochemical units commonly installed for phosphorus precipitation and biological oxygen demand reduction before sidestream treatment. This configuration has enabled progress in resource recovery, but it remains largely fragmented and sidestream-centric. Carbon, nitrogen, and phosphorus removal and recovery are still optimized primarily in separate process units, with limited design attention given to how the quality of the anaerobic effluent affects subsequent nitrogen removal, phosphorus recovery, and emissions control. As a result, energy costs and GHG emissions are determined by not only biological conversion but also the energy demands for the thermal hydrolysis process (THP), aeration, chemical conditioning, and sidestream operation. The central challenge is therefore no longer simply to improve isolated unit operations, but to couple upstream carbon valorization with downstream low-carbon nutrient management within a coherent treatment framework.
Journal article
(2016)
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Christof Holliger, Madalena Alves, Florian Ebertseder, Belén Fernández, Elena Ficara, Ioannis Fotidis, Jean Claude Frigon, Hélène Fruteau De Laclos, Dara S.M. Ghasimi, Gabrielle Hack, Mathias Hartel, Joern Heerenklage, Diana Andrade, Ilona Sarvari Horvath, Pavel Jenicek, Konrad Koch, Judith Krautwald, Javier Lizasoain, Jing Liu, Lona Mosberger, Mihaela Nistor, Hans Oechsner, João Vítor Oliveira, Irini Angelidaki, Mark Paterson, André Pauss, Sébastien Pommier, Isabella Porqueddu, Francisco Raposo, Thierry Ribeiro, Florian Rüsch Pfund, Sten Strömberg, Michel Torrijos, Miriam Van Eekert, Sergi Astals, Jules Van Lier, Harald Wedwitschka, Isabella Wierinck, Urs Baier, Claire Bougrier, Pierre Buffière, Marta Carballa, Vinnie De Wilde
Production of biogas from different organic materials is a most interesting source of renewable energy. The biomethane potential (BMP) of these materials has to be determined to get insight in design parameters for anaerobic digesters. A workshop was held in June 2015 in Leysin Switzerland to agree on common solutions to the conundrum of inconsistent BMP test results. A discussion covers actions and criteria that are considered compulsory ito accept and validate a BMP test result; and recommendations concerning the inoculum substrate test setup and data analysis and reporting ito obtain test results that can be validated and reproduced.
...
Production of biogas from different organic materials is a most interesting source of renewable energy. The biomethane potential (BMP) of these materials has to be determined to get insight in design parameters for anaerobic digesters. A workshop was held in June 2015 in Leysin Switzerland to agree on common solutions to the conundrum of inconsistent BMP test results. A discussion covers actions and criteria that are considered compulsory ito accept and validate a BMP test result; and recommendations concerning the inoculum substrate test setup and data analysis and reporting ito obtain test results that can be validated and reproduced.