Microalgal bioremediation of food-processing industrial wastewater under mixotrophic conditions: Kinetics and scale-up approach

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• 作者：Suvidha Gupta ; R. A. Pandey ; Sanjay B. Pawar
• 关键词：total organic carbon ; wastewater bioremediation ; kinetics ; mixotrophic cultivation
• 刊名：Frontiers of Chemical Science and Engineering
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：10
• 期：4
• 页码：499-508
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Industrial Chemistry/Chemical Engineering; Nanotechnology;
• 出版者：Higher Education Press
• ISSN：2095-0187
• 卷排序：10

文摘

The Chlorella microalgae were mixotrophically cultivated in an unsterilized and unfiltered raw food-processing industrial wastewater. Both inorganic carbon (CO₂-air) and organic carbon (wastewater) were provided simultaneously for microalgae growth. The aim of the study is to find out the utilization rates of total organic carbon (TOC) and chemical oxygen demand (COD) under mixotrophic conditions for a given waste water. About 90% reduction in TOC and COD were obtained for all dilutions of wastewater. Over 60% of nitrate and 40% of phosphate were consumed by microalgae from concentrated raw wastewater. This study shows that microalgae can use both organic and inorganic sources of carbon in more or less quantity under mixotrophic conditions. The growth of microalgae in food-processing industrial wastewater with all studied dilution factors, viz. zero (raw), 1.6 (dilution A), and 5 (dilution B) suggests that the freshwater requirement could be reduced substantially (20%–60%). 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Bioresource Technology, 2015, 198: 619–625CrossRefGoogle ScholarCopyright information© Higher Education Press and Springer-Verlag Berlin Heidelberg 2016Authors and AffiliationsSuvidha Gupta1R. A. Pandey1Sanjay B. Pawar1Email author1.Environmental Biotechnology DivisionCSIR–National Environmental Engineering Research Institute (NEERI)NagpurIndia About this article CrossMark Publisher Name Higher Education Press Print ISSN 2095-0179 Online ISSN 2095-0187 About this journal Reprints and Permissions Article actions Export citation .RIS Papers Reference Manager RefWorks Zotero .ENW EndNote .BIB BibTeX JabRef Mendeley Share article Email Facebook Twitter LinkedIn Cookies We use cookies to improve your experience with our site. More information Accept Over 10 million scientific documents at your fingertips