Patents Assigned to Black & Veatch
  • Biological nutrient removal process for treatment of wastewater
    Patent number: 5601719
    Abstract: An apparatus and method are provided that are useful in a process for treating organic wastewater for the removal of phosphorus and nitrogen compounds. The apparatus includes an anoxic zone, an oxic zone, and an anaerobic treatment zone, each having therein microorganisms that are operable to affect biological denitrification, BOD oxidation, luxury-uptake of phosphorus and formation of nitrates.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 11, 1997
    Assignee: Black & Veatch
    Inventors: James M. Hawkins, Cindy Wallis-Lage
  • Biosolids tracking system
    Patent number: 5519609
    Abstract: A biosolids tracking system monitors the quantity and quality of biosolids deposited on a plot of land. Global positioning system technology is used to determine the land coordinates of the boundary of the plot of land for accurate area calculation in order to determine the loading per unit area of biosolids including metals deposited on the plot. The system includes the ability to display superposed topographic and digitized photographic imagery of the plot with textual annotation.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: May 21, 1996
    Assignee: Black & Veatch
    Inventors: Richard D. Kuchenrither, Richard P. Byrne, Charles D. Leibbrandt