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Performance and kinetic evaluation of anaerobic moving bed biofilm reactor for treating milk permeate from dairy industry.
Wang, S; Rao, N Chandrasekhara; Qiu, R; Moletta, R.
Affiliation
  • Wang S; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Bioresour Technol ; 100(23): 5641-7, 2009 Dec.
Article in En | MEDLINE | ID: mdl-19631525
ABSTRACT
High strength milk permeate derived from ultra-filtration based cheese making process was treated in an anaerobic moving bed biofilm reactor (AMBBR) under mesophilic (35 degrees C) condition. Total chemical oxygen demand (TCOD) removal efficiencies of 86.3-73.2% were achieved at organic loading rates (OLR) of 2.0-20.0 g TCOD L(-1) d(-1). A mass balance model gave values of methane yield coefficient (Y(G/S)) and cell maintenance coefficient (k(m)) of 0.341 L CH(4) g(-1) TCOD(removed) and 0.1808 g TCOD(removed) g(-1) VSS d(-1), respectively. The maximum substrate utilization rate U(max) was determined as 89.3 g TCOD L(-1) d(-1) by a modified Stover-Kincannon model. Volumetric methane production rates (VMPR) were shown to correlate with the biodegradable TCOD concentration through a Michaelis-Menten type equation. Moreover, based on VMPR and OLR removed from the reactor, the sludge production yield was determined as 0.0794 g VSS g(-1) TCOD(removed).
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Biofilms / Bioreactors / Dairying / Anaerobiosis / Industrial Waste Limits: Animals Language: En Journal: Bioresour Technol Journal subject: ENGENHARIA BIOMEDICA Year: 2009 Document type: Article Affiliation country: China

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Biofilms / Bioreactors / Dairying / Anaerobiosis / Industrial Waste Limits: Animals Language: En Journal: Bioresour Technol Journal subject: ENGENHARIA BIOMEDICA Year: 2009 Document type: Article Affiliation country: China