Chan Wu-Chung, Lai Tzu-Yu
Civil Engineering Department, Chung-Hua University, Hsinchu 30067, Taiwan, ROC.
Bioresour Technol. 2010 Jan;101(1):126-30. doi: 10.1016/j.biortech.2009.08.001. Epub 2009 Aug 28.
Compounds interaction on the biodegradation of acetone and methyl ethyl ketone (MEK) mixture in a composite bead biofilter was investigated. The biodegradation rate of two compounds in the exponential growth phase and stationary phase for the single compound and two compounds mixing systems was determined. The microbial growth rate and biochemical reaction rate of biodegraded two compounds was inhibited at higher compound inlet concentration for the single compound system. The microbial metabolic activity of biodegraded acetone in the microbial growth process and biochemical reaction process was inhibited by introducing MEK and was more pronounced at higher MEK inlet concentration and lower acetone inlet concentration for the two compounds mixing system. The maximum elimination capacity of acetone and MEK for the single compound system was smaller and greater than those for the two compounds mixing system, respectively.
研究了复合珠生物滤池中化合物对丙酮和甲乙酮（MEK）混合物生物降解的相互作用。测定了单一化合物及两种化合物混合体系在指数生长期和稳定期两种化合物的生物降解速率。在单一化合物体系中，较高的化合物进口浓度会抑制两种化合物的微生物生长速率和生物化学反应速率。在两种化合物混合体系中，引入MEK会抑制微生物生长过程和生物化学反应过程中丙酮生物降解的微生物代谢活性，且在较高的MEK进口浓度和较低的丙酮进口浓度下更为明显。单一化合物体系中丙酮和MEK的最大去除能力分别小于和大于两种化合物混合体系中的最大去除能力。
