In waste water treatment, the use of a physico-chemical process by flotation would present some advantages compared to a separation by settling. However like each physico-chemical process, a separation by flotation needs a chemical destabilization. We have studied the use of an electrochemical destabilization coupled to a process of flotation (DAF). This paper presents the results obtained on an urban waste water treated by electrocoagulation and dissolved air flotation (DAF). To show the interest of coupling flotation and electrocoagulation, we have studied each process separately. Then we have combined the two processes. The role of each operation on pollution removal is presented. An effect of synergism between the two processes on the pollution abatement is shown. A reduction of 75% of the global COD is obtained. The results of the coupling are compared to the performance of an intensive treatment by flocculation-lamellar settler.
Skip Nav Destination
Article navigation
Research Article|
February 01 1995
Urban wastewater treatment by electrocoagulation and flotation
M.-F. Pouet;
M.-F. Pouet
*Laboratoire de Génie de l'Environnement Industriel, Ecole des Mines d'Alès, 30319 Alès Cedex, France
Search for other works by this author on:
A. Grasmick
A. Grasmick
**Laboratoire des Matériaux et Procédés Membranaires, case 024, UM II, 34095 Montpellier Cedex 5, France
Search for other works by this author on:
Water Sci Technol (1995) 31 (3-4): 275–283.
Citation
M.-F. Pouet, A. Grasmick; Urban wastewater treatment by electrocoagulation and flotation. Water Sci Technol 1 February 1995; 31 (3-4): 275–283. doi: https://doi.org/10.2166/wst.1995.0536
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Impact Factor 1.915
CiteScore 3.3 • Q2
13 days submission to first
decision
1,439,880 downloads in 2021