Japan overcame severe problems with environmental pollution in the 1960s and 70s and became one of the world’s most environmentally advanced countries. During this process, Japan accumulated vast amounts of knowledge, skills and experience in the practical solution of environmental problems. This includes environmental technologies, legal systems and environmental policies. On the other hand, most developing countries in Asia are still suffering from serious environmental problems and our experience has not yet been fully utilized by these countries. This is mainly due to the lack of international education systems suitable for transferring environmental technologies and the lack of practical training in solving real environmental problems in Japan. Industries should be environmentally friendly in order to achieve the sustainable development of a global civilization. Such industries should promote resource recycling and energy saving, and avoid the use of hazardous substances. In this laboratory, we conduct basic and applied research contributing to real-world environmental policies, and foster environmental leaders who will have the ability to solve environmental problems. Conservation and management of aquatic environments, improvement of water infrastructure, promotion of resource recycling, development of energy saving industries, and analysis of solutions to water sanitation issues in Japan and abroad are all topics being studied using various tools, such as water quality analysis, micro-pollutant analysis, and water and micropollutant treatment technologies and mathematical modeling.