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Author Spotlight: Scaling Microalgal Biotechnology for Enhanced Biomethane Production
Published on: March 22, 2024
Application of algae-bacteria symbiosis system for ammonia nitrogen wastewater treatment
Chun-Yen Chen1, Yu-Han Chang2, Yoong Kit Leong3
1University Center for Bioscience and Biotechnology, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Circular Economy, National Cheng Kung University, Tainan 701, Taiwan; Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan 701, Taiwan; Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
Abstract:
In industrial processes, the primary sources of ammonia nitrogen emissions are organic matter and nitrogen-containing chemicals. When released directly into the environment, these nitrogen compounds elevate aquatic toxicity and reduce dissolved oxygen levels, significantly affecting aquatic ecosystems. This review introduces both traditional and novel ammonia nitrogen wastewater treatment technologies. Traditional methods include physical, chemical, and biological processes. The focus of this review is on novel ammonia nitrogen wastewater treatment technology based on algae-bacteria symbiosis systems. The review discusses key environmental factors influencing the algae-bacteria symbiosis system, such as temperature, light intensity, carbon dioxide concentration, and bioflocculation. Furthermore, it presents innovative large-scale algae-bacteria symbiosis system designed to achieve high carbon dioxide removal efficiency while effectively treating ammonia nitrogen wastewater with low energy consumption. This review aims to provide valuable insights that support the future development of efficient and commercially viable novel technologies for treating ammonia-nitrogen wastewater.
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