Patents by Inventor Masao Enami

Masao Enami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for treating waste water of flue gas desulfurization
    Patent number: 5853598
    Abstract: A process for treating waste water of flue gas desulfurization comprising successively adjusting the pH of the waste water to 5 or less, bringing the waste water into contact with a column packed with fine particles of iron, flocculating the waste water, removing formed flocs from the waste water by solid-liquid separation, and optionally, bringing the remaining waste water into contact with a resin for COD adsorption, successively. Hazardous substances, such as oxidative substances, peroxosulfuric acid, iodic acid, heavy metals such as copper and lead, and non-metallic substances such as selenium compounds and fluorites, can be removed simultaneously and efficiently from the waste water of flue gas desulfurization containing these hazardous substances by using the process which is a simplified waste water disposal system.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 29, 1998
    Assignee: Kurita Water Industries Ltd.
    Inventors: Tsutomu Ogoshi, Yohka Tsurumaru, Hisao Tsuboya, Tsukasa Watanabe, Masao Enami