×

Process for the treatment of aqueous effluents on biofilters or other devices making use of fixed cultures

  • US 5,795,481 A
  • Filed: 01/29/1996
  • Issued: 08/18/1998
  • Est. Priority Date: 02/02/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for the treatment and purification of an aqueous effluent, the process comprising the steps of:

  • passing the aqueous effluent at a total rate into the interior of at least one battery comprising several biological filters, the biological filters having fixed cultures and operating in parallel;

    supplying aqueous effluent at a chosen rate to each of one or more biological filters;

    supplying one biological filter with a flow of aqueous effluent at a rate that corresponds to the difference between the total rate and the product of the chosen rate times the number of biological filters supplied with the aqueous effluent at the chosen rate; and

    varying the number of biological filters supplied with the chosen rate of aqueous effluent as the total rate varies.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×