alexa Bioremediation of Swine Wastewater and Biofuel Potential by using Chlorella vulgaris, Chlamydomonas reinhardtii, and Chlamydomonas debaryana
ISSN:2157-7463

Journal of Petroleum & Environmental Biotechnology
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Research Article

Bioremediation of Swine Wastewater and Biofuel Potential by using Chlorella vulgaris, Chlamydomonas reinhardtii, and Chlamydomonas debaryana

Rifat Hasan1, Bo Zhang2,3*, Lijun Wang2 and Abolghasem Shahbazi2
1Chemical, Biological and Bioengineering Department, North Carolina A&T State University, Greensboro North Carolina, USA
2Department of Natural Resources and Environmental Design, North Carolina A&T State University Greensboro, North Carolina, USA
3School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Hubei, China
Corresponding Author : Bo Zhang
Department of Natural Resources and Environmental Design
North Carolina A&T State University
1601 East Market Street
Greensboro, NC 27411, USA
Tel: 336-334-7787
Fax: 336-334-7270
E-mail: [email protected]
Received May 16, 2014; Accepted June 26, 2014; Published July 03, 2014
Citation: Hasan R, Zhang B, Wang L, Shahbazi A (2014) Bioremediation of Swine Wastewater and Biofuel Potential by using Chlorella vulgaris, Chlamydomonas reinhardtii, and Chlamydomonas debaryana. J Pet Environ Biotechnol 5:175. doi:10.4172/2157-7463.1000175
Copyright: © 2014 Hasan R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

Four commercial microalgae strains of Chlorella vulgaris, Chlamydomonas reinhardtii, Scenedesmus dimorphus and Neochloris oleoabundans, and a local strain of Chlamydomonas debaryana were studied in this research. It’s found that S. dimorphus and N. oleoabundans were unable to grow on the swine wastewater. The optimal culture conditions for C. vulgaris and C. reinhardtii were found to be (600 μ mol m-2s-1 and 25°C) and (300 μ mol m-2s-1 and 20°C), respectively. The growth kinetics was determined using Optical Density (OD) method and flow cytometry. Under the optimal culture conditions, the highest specific growth rates were found to be 1.336 day-1 and 1.286 day-1 for C. vulgaris and C. reinhardtii, respectively. The removal efficiency of nutrients from the wastewater is a function of microalgae growth. When comparing a local C. debaryana strain with these two commercial strains, the final biomass yields and lipid contents were 1.25 g/L and 15.2% (of the total cell dry weight), 0.86 g/L and 19.7%, and 0.73 g/L and 21.7% for C. vulgaris, C. debaryana and C. reinhardtii, respectively. In addition, the lipids from these microalgal strains contain a variety of fatty acids, which are suitable for the biofuel production.

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