Rotating Biological Contactor for Biological Treatment of Poultry Processing Plant Wastewater Using Saccharomyces Cerevisiae

https://doi.org/10.22146/ajche.50796

Dr. Gashem Najafpour(1*), Punita Nook Naidu(2), Azlina Harun Kamaruddin(3)

(1) Associate Professor, School, Universiti Sains Malaysia,Engineering Campus14300 Nibong Tebal,S.P.S. Pulau Pinang Tel:00604-5937788 ext. 5404, Fax: 00604 -5941013, najafpour@hotmail.com
(2) Associate Professor, School, Universiti Sains Malaysia,Engineering Campus14300 Nibong Tebal,S.P.S. Pulau Pinang
(3) Associate Professor, School, Universiti Sains Malaysia,Engineering Campus14300 Nibong Tebal,S.P.S. Pulau Pinang
(*) Corresponding Author

Abstract


Biological treatment using attached growth on a rotating biological contactor(RBC) was implemented for wastewater from poultry industries, which containsa high level of organic compounds due to the slaughtering, rendering of bonesand fats, and plucking processes. The wastewater mostly consists of proteins,blood, fat and feathers. Nutrients available in the wastewater may enhance thegrowth of microorganisms, thus, it allows biological treatment to be usedeffectively. On the other hand, there are problems associated with biologicaltreatment processes such as nutrients promoting algae growth. The controlvariables for the attached growth in RBC were wastewater detention time, effectivesurface for attached growth, disc submerged level in the wastewater basin, shaftrotation for aeration, pH control and supplementary nutrients. The attachedgrowth resulted to high COD refPoval. The best treatment was obtained after 24hours with 29 % disc submergence level. The effective surface area for cellgrowth was 10.7 m2 using 60 discs mounted on a shaft. The microorganismused for the attached microbial growth was Saccharomyces cerevisiae. The shaftwas rotating at 11 rpm. The treatment was improved with the addition of 1 v/vof 0.1 molar sodium hydroxide solution to the wastewater for controlling pH. A91 % COD removal was obtained with RBC operating at optimum conditions,with a DO concentration of 3.98 mg/l.Key words: Rotating biological contactors, Aerobic treatment, Poultry processing wastewater,Saccharomyces cereuisiae,Attached growth.

Keywords


Rotating biological contactors, Aerobic treatment, Poultry processing wastewater, Saccharomyces cereuisiae,Attached growth.

Full Text:

PDF


References

  1. Scott, J. S. and Smith, ~ G., (1983). Dictionaryof Wasteand WaterTreatment, Butterworth, London. Scott and Smith, 262. 
  2. Apilanez, I., Gutierrez, A., and Diaz, M., (1998). Effect of Surface Materials on Initial BioflimDevelopment, Bioresource Technology~.66 (3), 225-230.
  3. Davis, M. L. and Cornwell, D. A., (1991). Introduction to Environmental Engineering 2ndEd., McGraw-Hill,New York,368 - 370.
  4. Canale, R. P., (1971). Biotechnology and Bioengineering Symposium No.2: Biological Waste Treatment, John Wiley & Sons, New York, 131 - 140.
  5. Kim, B. J. and Molof, A. H., (1982). The Scale up and Limitation of Physical Oxygen TransferinRotatingBiologicalContactors, WaterScienceand Technology:14, 569- 579.
  6. Wilson, F. and Meng, L. W., (1997). Rotating Biological Contactors for Wastewater Treatmentin an Equatorial Climate, Water Science and Technology: 35 (80), 177- 184.
  7. Banerjee, G., (1998). Hydraulicsof BenchScale Rotating Biological Contactor. Water Research: 31 (10), 2500-2510.
  8. Campbell, I. and Duffus, J. H., (1988). Yeast: A PracticalApproach. IRLPress, Oxford, Washington D.C., 1 - 5.
  9. Greenberg, A. E., Clescerf, L. S. and Eaton, A. D., (1992). Standard Methods for the Examination of Waterand Wastewater18th Ed. APHA,AWWAand WEF,Washington D.C., 5.1 - 5.15.



DOI: https://doi.org/10.22146/ajche.50796

Article Metrics

Abstract views : 29 | views : 0

Refbacks

  • There are currently no refbacks.