Wang S, Rao N Chandrasekhara, Qiu R, Moletta R
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Bioresour Technol. 2009 Dec;100(23):5641-7. doi: 10.1016/j.biortech.2009.06.028. Epub 2009 Jul 23.
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).
源自基于超滤的奶酪制作过程的高强度乳清透过液，在中温（35摄氏度）条件下，于厌氧移动床生物膜反应器（AMBBR）中进行处理。在2.0 - 20.0 g TCOD L⁻¹ d⁻¹的有机负荷率（OLR）下，总化学需氧量（TCOD）去除效率达到86.3 - 73.2%。质量平衡模型得出甲烷产率系数（Y(G/S)）和细胞维持系数（k(m)）的值分别为0.341 L CH₄ g⁻¹ TCOD(去除)和0.1808 g TCOD(去除) g⁻¹ VSS d⁻¹。通过改进的Stover - Kincannon模型确定最大底物利用率U(max)为89.3 g TCOD L⁻¹ d⁻¹。通过米氏方程表明，体积甲烷产生速率（VMPR）与可生物降解的TCOD浓度相关。此外，基于从反应器中去除的VMPR和OLR，确定污泥产率为0.0794 g VSS g⁻¹ TCOD(去除)。
