6th International Young Scientist Congress (IYSC-2021) and workshop on Intellectual Property Rights on 8th and 9th May 2021.  10th International Science Congress (ISC-2020) will be Postponed to 8th and 9th December 2021 Due to COVID-19.  International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Measuring Biodegradability of Industrial Wastewater by a Low-cost differential Respirometer

Author Affiliations

  • 1Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology (SUST), Sylhet, BANGLADESH
  • 2 Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology (SUST), Sylhet, BANGLADESH
  • 3
  • 4

Res. J. Engineering Sci., Volume 2, Issue (4), Pages 1-4, April,26 (2013)


A low-cost differential manometric respirometer was fabricated to assess the biodegradability of industrial wastewater. Test samples were collected from four different industrial sources i.e. dairy, tannery, pharmaceutical and dyeing industry. In this study, various parameters such as ultimate oxygen uptake (OU∞), reaction rate constant (k), seed dependent biodegradability (αs) and relative oxygen uptake rate (R%) were calculated to assess the overall biodegradation criteria of the wastewater samples. Respirograms were plotted to evaluate the oxygen uptake rate (OUR) profile. Rate of biodegradation was found maximum for dairy industrial source while sample from dyeing industry exhibited retardation effects on the microbial biodegradation process.


  1. Ladwani Kiran D., Ladwani Krishna D., Manik Vivek S. and Ramteke Dilip S., Impact of Industrial Effluent Discharge on Physico-Chemical Characteristics of Agricultural Soil, I. Res. J. Environment Sci, 1(3), 32-36 (2012)
  2. Mir Tariq A., Manderia S., Manderia K., Influence of dye industrial effluent on physico-chemical characteristics properties of soil at Bhairavgarh, Ujjain, MP, India, I. Res. J. Environment Sci, 1(1), 50-53 (2012)
  3. Mashhood A. K. and Arsalan M. G., Environmental Pollution: Its effects on Life and its Remedies, Journal of Arts, Science & Commerce, II (2), 276 (2011)
  4. Roppola K., Environmental applications of manometric respirometric methods, PhD Thesis, Department of Chemistry, University of Oulu, Finland (2009)
  5. Xia W., Li J. and Zheng X., Biodegradability assessment of industrial wastewater by Warburg Respirometer. The 2nd International Conference on Bioinformatics and Biomedical Engineering, 16-18 May 2008, 3738 – 3740 (2008)
  6. Rajor A., Reddyand A.S. and Singh B., Determination of BOD kinetic Parameters and evaluation of alternate methods, M.Sc. Thesis, Department of biotechnology & environmental Science, Thapar Institute of Engineering & Technology, Patiala (2004)
  7. Grady C., Dang J., Harvey D., Jobbagy A. and Wang X.L., Determination of biodegradation kinetics through use of electrolytic respirometer, Water Science and Technology, 21, 957–968 (1989)
  8. Mahendraker V. and Viraraghavan T., Respirometry in environmental engineering, Journal of Environmental Science and Health. Part A. Environmental Science and Engineering, 30, 713–734 (1995)
  9. Young J.C., Fundamentals of respirometry: Instrument types and basis of operation, 51st Perdue Industrial Waste Conference Proceedings, Ann Arbor Press Inc. 441-45 (1996)
  10. APHA, Standard Methods for the Examination of Water and Wastewater. 20th Edition, American Public Health Association, Washington, USA (2005)
  11. Kok B., Veltkamp G.W. and Gelderman W.P., on differential mano-and volumetric methods, Biochem Biophys Acta. 11(1), 7-16 (1953)
  12. Metcalf and Eddy Inc, Wastewater Engineering: Treatment and Reuse, 4th Edition, New York, USA (2003)