Polyphosphate accumulating bacteria are salt-tolerant? Biological phosphate recovery from seawater and brackish water

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630246
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Civil and environmental engineering
• Research Institution: Hiroshima University
• Principal Investigator: OHASHI AKIYOSHI 広島大学, 工学(系)研究科(研究院), 教授 (70169035)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: リン / 資源回収 / ポリリン酸蓄積細菌 / 海水・淡水 / バイオリアクター

Outline of Final Research Achievements

This study revealed the relationship between the clades of polyphosphate accumulating bacteria (PAOs), which are rich in diversity depending on salinity, and favorable environment conditions of the respective clades. The diverse PAOs were successfully cultivated by a DHS reactor under different salinity conditions, suggesting that it is possible to recover polyphosphate as concentrated solution from not only wastewaters but also seawater and brackish water.

Free Research Field

環境衛生工学