餐厨垃圾厌氧消化水解机理及动力学模型研究.pdfVIP

30 1 Vo.l 30, No. 1 2010 1 Acta Scientiae Circumstantiae Jan. , 2010 , , . 2010. [ J]. , 30( 1): 142- 147 Wu Y, Zhang D J, Yang G. 2010. The mechanism and kinetics of hydrolysis in the anaerobic digestion of kitchen wastes [ J]. Acta Scientiae Circumstantiae, 30( 1): 142- 147 1 1, * 2 吴云 , 张代钧 , 杨钢 1. 重庆大学资源及环境科学学院, 重庆 400044 2. 重庆教育学院地理系, 重庆 400067 : : : : , . ,, , . ( 20mm40mm60mm) 1. 422. 122. 78. , , . , , . : ; ; ; ; : 2010) 0114206 : X705 : A The m echanism and kinetics of hydrolysis in the anaerobic digestion of kitchen wastes 1 1, * 2 WU Yun, ZHANG Daijun , YANG Gang 1. Resource and Environment ScienceCollege, Chongqing University, Chongqing 400044 2. Department of Geography, Chongqing Education College, Chongqing 400067 Received 3 April 2009; received in revised form 11 July 2009; accepted 27 October 2009 Abstract: The profile of hydrolysates produced during the anaerobic digestion of kitchen wastes was investigated expermi entally and theoretically. The expermi ental results showed that the hysteresis of the hydrolysis ratewasmainly controlled by the diffusion effect. The hydrolyticmechanism of kitchen wastes is elaborated taking the diffusion effect into consideration. A partitioningmodel of the hydrolysis of kitchen waste is formulated including the coefficient of diffusion resistance in themode.l The coefficients of diffusion resistance fordifferent particle sizes ( 20mm, 40mm, 60mm) are 1. 42, 2. 12, and 2. 78 based on the expermi ental data, in which the coefficient of diffusion resistance vs. particle size conforms to an exponential function. So, the partitioning kineticmodel could be integrated as a unified experiencemodel. V erification of themodel by compari