The Mitsui & Co. Environment Fund

Introduction to Grant Projects

Division of Advanced Science and Biotechnology, Graduate School of Engineering, Osaka University, Professor Hisao Ohtake

Establishing a strategy to promote social implementation of a sustainable phosphorus resource reusage system

Research grant

Project Description

The project identified the key stakeholders that influence the societal implementation of the circulation reuse system of phosphorus in Japan, and by conducting a structural actor analysis, which is the social scientific analysis method of the proposed knowledge base. It also clarifed the social and economic factors that impede societal implementation and propose effective measures to promote societal implementation of the circulation reuse system of phosphorus in Japan.

Grant year
FY2012 Research Grants
Grant term
2 years
April 2013 - March 2015
Grant amount
4,704,000 yen
Activity region
Nationwide, Japan
An International Phosphorus Summit held in Beijing in June, 2013

Overview of the Organization

Professor Hisao Otake
Professor Hisao Otake
Specialist field
Biochemical engineering
Affiliated academic societies
The Society for Biotechnology, Japan, Japan Society for Environmental Biotechnology
In 1978, completed a Doctorate in Biochemical Engineering from Osaka University, and then became an Assistant professor at Shimane University, Simane. In 1983 took the post of Associate Professor, University of Tokyo, Tokyo, and then from 1986 to 1987 was a Research Associate at University of Illinois College of Medicine, Chicago. In 1990 became a Professor in the Department of Molecular Biotechnology, Hiroshima University, Hiroshima. In 2003 took the position of Professor at the Department of Biotechnology, Osaka University, Osaka.
WEB site
Collaborating researchers
Phosphorus Recycling Promotion Council
Research record
Prof. Ohtake's papers elucidating the molecular mechanism of hazardous heavy metal hexavalent chromium resistance by microorganisms published in journals of the American Society for Microbiology have been cited hundreds of times. Subsequently Prof. Ohatake elucidated the molecular mechanism of polyphosphate metabolism of microorganisms and this work was published in U.S. scientific journal Science and elsewhere. Prof. Ohtake has also been pursuing the development of HeatPhos methods for phosphorus recovery from sewage sludge and a development study of phosphorus recovery techniques using amorphous calcium silicate. Since 2008, he has served as chairman of the Phosphorus Recycling Promotion Council and has been engaged in initiatives to achieve sustainable reuse of phosphorus resources - a new global issue.