Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 217, Issue -, Pages 845-857Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2018.04.021
Keywords
Algal-prokaryotic consortia; Biological nitrogen removal; Reactor configurations; N metabolic pathways; Full-scale applications
Categories
Funding
- National Science Foundation [1511439, 1243510]
- Directorate For Engineering [1511439] Funding Source: National Science Foundation
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The synergistic activity of algae and prokaryotic microorganisms can be used to improve the efficiency of biological wastewater treatment, particularly with regards to nitrogen removal. For example, algae can provide oxygen through photosynthesis needed for aerobic degradation of organic carbon and nitrification and harvested algal-prokaryotic biomass can be used to produce high value chemicals or biogas. Algal-prokaryotic consortia have been used to treat wastewater in different types of reactors, including waste stabilization ponds, high rate algal ponds and closed photobioreactors. This review addresses the current literature and identifies research gaps related to the following topics: 1) the complex interactions between algae and prokaryotes in wastewater treatment; 2) advances in bioreactor technologies that can achieve high nitrogen removal efficiencies in small reactor volumes, such as algal-prokaryotic biofilm reactors and enhanced algal-prokaryotic treatment systems (EAPS); 3) molecular tools that have expanded our understanding of the activities of algal and prokaryotic communities in wastewater treatment processes. (C) 2018 Elsevier Ltd. All rights reserved.
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