Development of cleaning agents for water and soil using inorganic materials

researcher's name
research field
Catalyst/Resource chemical process,Properties in chemical engineering process/Transfer operation/Unit operation,Reaction engineering/Process system,Inorganic industrial materials,Nanostructural chemistry


A coagulation-sedimentation method using aluminum sulfate and calcium salts is generally used for the removal of boron and fluorine. However, if the concentrations are too high, it becomes difficult to comply with the national minimum effluent standards stipulated in 1999 under the revised Water Pollution Control Law, of 10 ppm for boron (in areas other than the sea) and 8 ppm for fluorine (also in areas other than the sea). There are also treatment methods that use ion exchange resins or chelating agents, but they are expensive making it difficult for dischargers of boron and fluorine to implement, many of whom are small to medium-sized enterprises. This has resulted in a postponement in the imposing of standards on industries that have difficulty complying, and there was a need for development of a low-cost, high-efficiency treatment method.


We have highly economical insolubilization technology for treating polluted soil, and water treatment technology for dealing with all toxic metals.


Treating discharged water from factories, ground water, and polluted soil, as well as preventing elution of toxic elements from various types of combustion ash.


Natural organic materials are used, achieving an overwhelming economic advantage.

purpose of providing seeds

Sponsord research, Collaboration research, Technical consultation


■ Awards won: Awards won include the Award for Young Scientists of The Society of Chemical Engineers, Japan, the Award for Young Scientists of The Japan Petroleum Institute, Award for Young Scientists of the Catalysis Society of Japan, and the Japan Institute of Energy Award for Progress.

■ Membership in societies: Japan Chemical Industry Association, The Society of Chemical Engineers, Japan, The Japan Petroleum Institute, the Japan Association of Zeolite, the Japan Society of Energy and Resources, Catalysis Society of Japan, American Chemical Society, The Chemical Society of Japan, Materials Research Society、American Institute of Chemical Engineers, and The Membrane Society of Japan.


  • The results of treating polluted soil (containing 10 g / kg)
posted: 2014/05/21