Patents by Inventor Nina Ivanovna Korotchenko

Nina Ivanovna Korotchenko 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).

  • Method for processing activated sludge into useful products
    Patent number: 4119495
    Abstract: A method for processing activated sludge into useful products comprises hydrolysis of activated sludge at a pH of 0.01 to 6.0 at a temperature of 50.degree. to 150.degree. C with subsequent separation of formed water-soluble protein, carbohydrate and mineral substances and vitamins, and/or alkaline extraction of the initial activated sludge at a pH of 9 to 13 at a temperature of 40.degree. to 90.degree. C with subsequent separation of proteins from the extract.The invention makes it possible to simultaneously obtain useful products and solve the problem of utilization of activated sludge formed in great excess in biological purification of effluents, thereby ensuring intensification of purification of effluents, improvement of the quality of the purified water and decrease in the pollution of the environment.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: October 10, 1978
    Inventors: Vasily Dmitrievich Belyaev, Sergei Vladimirovich Chepigo, Nina Ivanovna Korotchenko, Alexandr Nikolaevich Mezentsev, Olga Vasilievna Samokhina, Alexandra Leonidovna Krasinskaya, Vadim Nikolaevich Timkin, Yaroslav Yaroslavovich Shkop, Alexei Olegovich Colubev