An integrated mathematical model for chemical oxygen demand (COD) removal in moving bed biofilm reactors (MBBR) including predation and hydrolysis精品.pdfVIP

Water Research 98 (2016) 84e97 Contents lists available at ScienceDirect Water Research journal homepage: /locate/watres An integrated mathematical model for chemical oxygen demand (COD) removal in moving bed biofilm reactors (MBBR) including predation and hydrolysis a b b, * Marta Revilla , Berta Galan , Javier R. Viguri a SNIACE, Carretera de Ganzo S/N, Torrelavega, 39300, Cantabria, Spain b Green Engineering Resources Research Group (GER), Department of Chemical and Process Resources Engineering, ETSIIT, University of Cantabria, Avenida Los Castros s/n, Santander, 39005, Cantabria, Spain a r t i c l e i n f o a b s t r a c t Article history: An integrated mathematical model is proposed for modelling a moving bed biofilm reactor (MBBR) for Received 13 December 2015 removal of chemical oxygen demand (COD) under aerobic conditions. The composite model combines Received in revised form the following: (i) a one-dimensional biofilm model, (ii) a bulk liquid model, and (iii) biological processes 4 March 2016 in the bulk liquid and biofilm considering the interactions among autotrophic, heterotrophic and Accepted 3 April 2016 predator microorganisms. Depending on the values for the soluble biodegradable COD loading rate Available online 6 April 2016 (SCLR), the model takes into account a) the