Patents Assigned to Petrozyme Technologies Inc.
  • Treatment of soil contaminated with hazardous residues
    Patent number: 6251058
    Abstract: A method for removal of organic contaminants from solid particulate soil contaminated with the organic contaminants. The method comprises forming an aqueous slurry of a mixture of a hydrophobic adsorbent selected from foamed synthetic materials or natural materials which entrap gas, with the soil in the presence of water. The adsorbent has a density less than water. The slurry is mixed for a period of time, and a gravity separation of the adsorbent from the aqueous admixture thus obtained is effected.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Petrozyme Technologies, Inc.
    Inventors: Owen P. Ward, Ajay Singh, Kate Billingsley
  • Biological process for breaking oil-water emulsions
    Patent number: 6171500
    Abstract: A process for breaking an oil-water emulsion. The process comprises contacting the oil-water emulsion with a bacterial culture produced by growth in a liquid medium containing hydrocarbons under non-sterile conditions. The oil-water emulsion and bacterial culture are contacted under conditions that minimise degradation of the oil. The oil-water emulsion is permitted to form an oil layer and a water layer, which are then separated. The process is particularly useful in the treatment of slop-oil emulsion in the petroleum industry.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: January 9, 2001
    Assignee: Petrozyme Technologies Inc.
    Inventors: Owen P. Ward, Ajay Singh
  • Treatment of soil contaminated with oil or oil residues
    Patent number: 6153017
    Abstract: A method for removal of hydrocarbon materials from solid particulate soil contaminated with the hydrocarbon materials. The method comprises forming an aqueous slurry of a mixture of a hydrophobic adsorbent selected from foamed synthetic materials or natural materials which entrap gas, with the soil in the presence of water. The adsorbent has a density less than water. The slurry is mixed for a period of time, and a gravity separation of the adsorbent from the aqueous admixture thus obtained is effected.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: November 28, 2000
    Assignee: Petrozyme Technologies Inc.
    Inventors: Owen P. Ward, Ajay Singh