Patents by Inventor Mohamed Shahrir Mohamed Zahari

Mohamed Shahrir Mohamed Zahari 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).

  • Removal of ammoniacal nitrogen from landfill leachates
    Patent number: 11370675
    Abstract: A method of treating a landfill leachate containing ammoniacal nitrogen and phosphate by mixing with seawater to precipitate magnesium ammonium phosphate (MAP) also known as struvite. Effects of pH, temperature, stirring speed, and magnesium to ammonia molar ratio on leachate properties such as COD, ammoniacal nitrogen, phosphate content, color, turbidity, amount of magnesium, iron and zinc are disclosed. The method provides high removal efficiency for removal of ammoniacal nitrogen, phosphate, COD, color and turbidity. The method provides a cost-effective system for treatment of landfill leachate and recovery of MAP.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: June 28, 2022
    Assignee: King Abdulaziz University
    Inventors: Ibrahim Mustafa Mehedi, Shahrul bin Ismail, Mohamed Shahrir Mohamed Zahari, Ubaid M. Al-Saggaf, Md Mottahir Alam, Ahmed Ubaid Al-Saggaf