Modeling the Influence of Particulate Protein Size on Hydrolysis in Anaerobic Digestion

被引:33
作者
Aldin, Saad [1 ]
Nakhla, George [1 ]
Ray, Madhumita B. [1 ]
机构
[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
PARTICLE-SIZE; KINETICS; DEGRADATION;
D O I
10.1021/ie200385e
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Batch experiments were performed to investigate the effect of particulate protein size on the hydrolysis of casein in anaerobic degradation. Whereas particle size did not affect the ultimate protein degradation efficiency, the hydrolysis rate coefficient increased from 0.034 to 0.298 day(-1) with a change in specific surface area from 0.01 to 0.192 m(2)/g. The maximum rate of methane production increased from 6 to 14 mL of CH4 per gram of COD added per day with the same change in specific surface area, although the ultimate volume of methane produced was approximately the same despite the change in specific surface area. A mathematical relationship between the hydrolysis rate coefficient and the specific surface area was developed, and a new hydrolysis equation was proposed and verified.
引用
收藏
页码:10843 / 10849
页数:7
相关论文
共 28 条
[1]   Defining the biomethane potential (BMP) of solid organic wastes and energy crops: a proposed protocol for batch assays [J].
Angelidaki, I. ;
Alves, M. ;
Bolzonella, D. ;
Borzacconi, L. ;
Campos, J. L. ;
Guwy, A. J. ;
Kalyuzhnyi, S. ;
Jenicek, P. ;
van Lier, J. B. .
WATER SCIENCE AND TECHNOLOGY, 2009, 59 (05) :927-934
[2]  
APHA (AMERICAN PUBLIC HEALTH ASSOCIATION), 1995, Standard Methods for the Examination of Water and Waste Water
[3]  
Batstone DJ, 2002, WATER SCI TECHNOL, V45, P65
[4]   The influence of particle size on microbial hydrolysis of protein particles in activated sludge [J].
Dimock, Rachel ;
Morgenroth, Eberhard .
WATER RESEARCH, 2006, 40 (10) :2064-2074
[5]   SUBSTRATE DEGRADATION PATTERNS IN ACID-PHASE ANAEROBIC-DIGESTION OF MUNICIPAL PRIMARY SLUDGE [J].
ELEFSINIOTIS, P ;
OLDHAM, WK .
ENVIRONMENTAL TECHNOLOGY, 1994, 15 (08) :741-751
[6]   THE RECOGNITION OF MALTODEXTRINS BY ESCHERICHIA-COLI [J].
FERENCI, T .
EUROPEAN JOURNAL OF BIOCHEMISTRY, 1980, 108 (02) :631-636
[7]  
Gavala HN, 2003, ADV BIOCHEM ENG BIOT, V81, P57
[8]   Comparison of hydrolytic enzyme systems in pure culture and activated sludge under different electron acceptor conditions [J].
Goel, R ;
Mino, T ;
Satoh, H ;
Matsuo, T .
WATER SCIENCE AND TECHNOLOGY, 1998, 37 (4-5) :335-343
[9]   CONVERSION PROCESSES IN ANAEROBIC-DIGESTION [J].
GUJER, W ;
ZEHNDER, AJB .
WATER SCIENCE AND TECHNOLOGY, 1983, 15 (8-9) :127-167
[10]   Enzymatic hydrolysis of polysaccharide-rich particulate organic waste [J].
He, PJ ;
Lü, F ;
Shao, LM ;
Pan, XJ ;
Lee, DJ .
BIOTECHNOLOGY AND BIOENGINEERING, 2006, 93 (06) :1145-1151