Record Details

Bioremediation of synthetic high–chemical oxygen demand wastewater using microalgal species Chlorella pyrenoidosa

IR@CSIR-NEERI

View Archive Info
 
 
Field Value
 
Title Bioremediation of synthetic high–chemical oxygen demand wastewater using microalgal species Chlorella pyrenoidosa
 
Creator Gupta, Suvidha
Pandey, R A
Pawar, Sanjay
 
Subject Industrial Wastewater Treatment & Disposal
Environmental Biotechnology
Chemistry, Chemical Technology
 
Description The microalgal species Chlorella pyrenoidosa was cultivated in synthetic wastewater of initialchemical oxygen demand (COD), nitrate, and phosphate concentrations of 5000, 100, and 40 mg/L,respectively. The aim of the study was to find out the tolerance of microalgae to different COD concentrations and the extent of COD degradation at those concentrations. Three dilutions of wastewater (initial COD concentrations 5000, 3000, and 1000 mg/L) and three inoculum sizes (0.1,0.2, and 0.3 g/L) were considered for the study. The experimental parameters such as total organic
carbon, total inorganic carbon, COD, optical density, total solids, nitrate, and phosphate were measured on a daily basis. Biodegradation kinetics was determined for all cases using first-order reaction and Monod degradation equations. Optimal results showed that up to 90% reduction in TOC was obtained for 1000 COD wastewater while only 38% reduction in total organic carbon (TOC)was achieved for 5000 COD wastewater. Over 95% reduction in nitrate and nearly 90% removal of phosphate were obtained with the lowest microalgal inoculum concentration (i.e., 0.1 g/L) for all COD dilutions. This study showed that microalgal species C. pyrenoidosa can successfully degrade the organic carbon source (i.e., acetate) with significant removal efficiencies for nitrate and phosphate.
 
Publisher Taylor and Francis
 
Date 2017
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/793/1/Suvidha%20taylor%20and%20francis%20paper.pdf
Gupta, Suvidha and Pandey, R A and Pawar, Sanjay (2017) Bioremediation of synthetic high–chemical oxygen demand wastewater using microalgal species Chlorella pyrenoidosa. BIOREMEDIATION JOURNAL, 21 (1). pp. 38-51. ISSN 1547-6529
 
Relation http://www.tandfonline.com/action/journalInformation?journalCode=bbrm20
http://neeri.csircentral.net/793/