7. กังหันน้ำชัยพัฒนา.Current state for aquatic with even more violence. Therefore, it is necessary to use the mechanical aeration oxygenating to wastewater treatment. King"s son of the heart on the aeration device. And he searched the thought theory of wastewater treatment by way of aeration. Using the method of the air can dissolve into the water to accelerate the growth and tissue samples of bacteria that have a lot of fast enough to destroy the dirt in the water out quickly. According to the theory of development. "กังหันน้ำชัยพัฒนา" which is a form of invention simple, economical, for use in treatment of wastewater from the community and industrial sources. And has implemented nationwide.
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