References
- Klapwijk , A. , Drent , J. and Sheenvoorden , J.H.A.M. 1974 . A modified procedure for the TTC‐dehydrogenase test in activated‐sludge . Wat. Res. , 8 : 121 – 125 .
- Anderson , K. , Koopman , B. and Bitton , G. 1988 . Evaluation of INT‐dehydrogenase assay for heavy metal inhibition of activated sludge . Wat. Res. , 22 : 349 – 353 .
- Jørgensen , K.P. 1984 . Determination of the enzyme activity of activated sludge by methylene blue reduction . J. Water Pollut. Control Fed. , 56 : 89 – 93 .
- Hunter , J. V. and Henkelekian , H. 1965 . The composition of domestic sewage fractions . J. Wat. Pollut. Control Fed. , 37 : 1142 – 1163 .
- Rickert , D. A. and Hunter , J. V. 1967 . Rapid fractionation and material balance of solid fractions in wastewater effluent . J. Wat. Pollut. Control Fed. , 29 : 1475 – 1486 .
- Levine , A.D. , Tchobanoglus , G. and Asano , T. 1991 . Size distribution of particulate contaminants in wastewater and their impact on treatability . Wat. Res. , 25 : 911 – 922 .
- Ubukata , Y. 1992 . Kinetics of polymeric substrate removal by activated sludge: hydrolysis of polymers is the rate‐determining step . Wat. Sci. Technol. , 26 : 2457 – 2460 .
- Dold , P. L. , Fleit , E. and Hand , J. 1991 . Hydrolysis of a (1–4) glucand bonds in activated sludge mixed bacterial communities . Envir. Technol. , 12 : 871 – 879 .
- Boczar , B. A. , Begley , W. M. and Larson , R. J. 1992 . Characterization of enzyme activity in activated sludge using rapid analyses for specific hydrolases . Water Environ. Res. , 64 : 792 – 797 .
- Teuber , M. and Brodish , K. E. U. 1977 . Enzymatic activities of activated sludge . Eur J. Appl. Microbiol. , 4 : 185 – 194 . 1977
- Richards , S. R. , Hastwell , C. and Davies , M. 1984 . The comparative examination of 14 activated‐sludge plants using enzymatic techniques . J. Water Pollut. Control Fed. , 83 : 300 – 313 .
- Alder‐Nissen , J. 1986 . Enzymic Hydrolysis of Food Proteins, , 2nd ed. , London : Elsevier .
- Snyder , S. L. and Sobocinski , P. Z. 1975 . An improved 2,4,6‐trinitrobencenesulfonic acid method for the determination of amines . Anal. Biochem. , 64 : 284 – 288 .
- Laidler , K. J. 1965 . Chemical Kinetics, , 2nd ed. , New York : McGraw‐Hill, Inc. .
- Eckenfelder , W.W. 1980 . Principles of Water Quality Management, , 1st ed. , Boston : CBI .
- Walker , I. and Davies , M. 1977 . The relationship between viability and respiration rate in the activated sludge process . Water Res. , 11 : 575 – 578 .