Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(9): 1403-1413
DOI: https://doi.org/10.20546/ijcmas.2017.609.170


Physico-Chemical and Microbiological Profile of Effluents from Common Effluent Treatment Plants (CETPs)
Gaganpreet Kaur, Priya Katyal* and Dhanwinder Singh
Department of Microbiology, Punjab Agricultural University, Ludhiana, Punjab, India
*Corresponding author
Abstract:

Metal remediation through conventional technologies in Common Effluent Treatment Plants (CETPs) is often inefficient or very expensive, whereas, bioremediation by using heavy metal resistant microorganisms has received a great deal of attention for its potential application in industry. The present study was envisaged to check the physico-chemical properties of effluents being treated at CETPs and to isolate indigenous heavy metal tolerant bacteria for their subsequent utilization for heavy metal uptake. Effluent samples were collected from two CETPs located in Ludhiana and Jalandhar and were analyzed for their physico-chemical parameters (dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD) and pH) and heavy metal profile using Inductively Coupled Argon Plasma-Emission Spectroscopy (ICAP-AES). In both the samples Cr was found to be the dominant metal contaminant. Out of twenty one bacterial isolates obtained from effluent samples, ten morphologically distinct isolates were tested for minimum inhibitory concentration (MIC) against six different heavy metals i.e. As, Cr, Hg, Ni, Pb and W by supplementing the Luria Bertani (LB) agar media with increasing dose of heavy metal salts (5-100 ppm). Four isolates (HM 2, HM 3, HM 15 and HM 16) showed maximum tolerance to selected five different heavy metals except mercury (Hg). These isolates were biochemically characterized, whereby, HM 3 and HM 16 were closely related to Enterobacter and HM 2 was found to be related to Klebsiella. Optimum growth of selected isolates was obtained at pH 9.0 and temperature 40°C. Of these four isolates, only HM 2 and HM 16 showed comparable growth rate and in-vitro compatibility and were selected as potent candidate for consortium.


Keywords: Common Effluent Treatment Plants, bioremediation, heavy metal tolerant, ICAP-AES.
Download this article as Download

How to cite this article:

Gaganpreet Kaur, Priya Katyal and Dhanwinder Singh. 2017. Physico-Chemical and Microbiological Profile of Effluents from Common Effluent Treatment Plants (CETPs).Int.J.Curr.Microbiol.App.Sci. 6(9): 1403-1413. doi: https://doi.org/10.20546/ijcmas.2017.609.170