Performance and kinetic evaluation of anaerobic moving bed biofilm reactor for treating milk permeate from dairy industry.
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).
Wang
S
S
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Rao
N Chandrasekhara
NC
Qiu
R
R
Moletta
R
R
D000465:Algorithms; D000693:Anaerobiosis; D000818:Animals; D018441:Biofilms; D019149:Bioreactors; D002417:Cattle; D003612:Dairying / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D007700:Kinetics; D008892:Milk; D008962:Models, Theoretical; D014865:Waste Disposal, Fluid / Q000379:methods; D018508:Water Purification
D007220:Industrial Waste