2021 Fiscal Year Final Research Report
A Sustainable and Recycling-oriented Wastewater Industry by Maximizing Valuable Resources and Energy Recovery Using the Novel Algal-bacterial Aerobic Granular Sludge Technology
| Project/Area Number |
18H03403
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 64030:Environmental materials and recycle technology-related
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| Research Institution | University of Tsukuba |
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Principal Investigator |
Lei Zhongfang 筑波大学, 生命環境系, 准教授 (30634505)
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| Co-Investigator(Kenkyū-buntansha) |
張 振亜 筑波大学, 生命環境系, 教授 (20272156)
清水 和哉 東洋大学, 生命科学部, 教授 (10581613)
水野谷 剛 筑波大学, 生命環境系, 准教授 (10500770)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Keywords | Algal-bacterial granule / Bacterial grannule / Oil producing microalgae / Microalgae granulation / Phosphorus recovery / Heavy metal / Energy production |
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| Outline of Final Research Achievements |
Resource/energy recovery from wastewater is crucial for sustainable development of wastewater treatment plants (WWTPs). In this project, we achieved fruitful results on the following six aspects: (1) Rapid granulation and harvesting of natural microalgae and single cell microalgae; (2)Value-added biomaterials accumulation and production from wastewater, including phosphorus, alginate-like exopolymers (ALE), proteins, polysaccharides, and lipids; (3) Impacts of operation mode on the system stability and nutrients removal; (4) Granular system stability and remediation under various conditions; (5) Heavy metal (with Cr as example) recovery from wastewater and safe posttreatment of heavy metal-loaded granules; and (6) Deep insight into the biogranulation of bacteria/microalgae symbiosis and microalgae, highlighting the functions of specific microalgae species and extracellular polymeric substances (EPS).
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| Free Research Field |
環境工学
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| Academic Significance and Societal Importance of the Research Achievements |
During 2018-2022, we published 37 articles in the top 10 jourals in the field of Environmental Engineering, and shared 36 presentations (5 invited keynotes) with peers in international conferences. The results definitely lay a solid foundation for the sustainable management of wastewater industry.
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