Process for the treatment of aqueous effluents on biofilters or other devices making use of fixed cultures
First Claim
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.
3 Assignments
0 Petitions
Accused Products
Abstract
A process for the treatment of aqueous effluent with a view to its purification, the process including at least one stage consisting of causing the water to pass into the interior of at least one battery of several biological filters with fixed cultures or other devices with fixed cultures operating in parallel, characterized in that it comprises supplying the filters at constant flow and to cause the number of filters supplied and the number of filters not supplied in the battery, to be varied, in accordance with the total flow of aqueous effluent to be treated. Such a process allows the performance of biofilters and other devices with fixed cultures to be improved.
-
Citations
14 Claims
-
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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification