2015 Fiscal Year Final Research Report
Development of phosphorus-recovery purification system using oyster-shell biofilm
| Project/Area Number |
25550095
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Design and evaluation of sustainable and environmental conscious system
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| Research Institution | Prefectural University of Hiroshima |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | バイオフィルム / カキ殻 / リン回収 |
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| Outline of Final Research Achievements |
Wastewater from pig farms contains phosphorus in high concentrations. The removal and recovery of phosphorus for reuse is considered desirable as phosphorus is a limited natural resource. We developed a phosphorus recovery system with low operating cost for purifying wastewater runoff at small-scale facilities in the swine industry. The system, which consists of a mature biofilm with oyster shell as the carrier, has a high purification capacity. Organic phosphorus compounds are adsorbed by the oyster shell and are taken up by microbes as polyphosphoric acid. Possible uses of the shells and biofilm matrix include phosphatic fertilizer production and desorption for phosphorus recovery.
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| Free Research Field |
環境生化学
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