alexa Sewage Treatment in a single pond system at East Kolkata Wetlands, India
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Sarkar S, Ghosh PB, Mukherjee K, Sil AK, Saha T

Abstract Share this page

East Kolkata Wetland (EKW), a Ramsar site, greatly contributes towards purification of city sewage employing single pond system. However, the underlying mechanism remains unknown. Therefore to gain an insight, in this study efforts have been made to understand the rate of biodegradation and the time dependent changes of different physicochemical factors and their interactions that are involved in the process. For this purpose, different parameters such as BOD, COD, faecal coliforms etc. have been measured at different time intervals during the purification process. The results reveal that biodegradation rate at EKW pond is very high and wastewater gets stabilized within 10 days of retention. The higher rate of biodegradation in pond system at EKW (k = 0.7 day(-1)) than in laboratory based in vitro experiment (k = 0.12 day(-1)) reveals the important contribution from other environmental components that are unique for this system. The results also demonstrate the significant influence (P< or =0.01) of temperature, pH and dissolved oxygen on the purification of waste water. Thus the current study provides an insight about the optimal pathway of gradual improvement of wastewater quality in the single pond system at EKW and may serve to explore the inherent mechanism to a great extent.

  • To read the full article Visit
  • Subscription
This article was published in Water Science and Technology and referenced in International Journal of Waste Resources

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version