2012 - Europe Direct Iasi

EUROINVENT 2012
1.2.
Title A Pressurized Capsule for a Dissolved Air Flotation Unit
Bogdan Dumitru NĂSĂRÎMBĂ, Gabriel PETRESCU, Ioana
Authors
Corina MOGA GRECESCU
University POLITEHNICA of Bucharest
Institution SC DFR SYSTEMS SRL
University POLITEHNICA of Bucharest
Patent no. Patent application No. 0074/2011
The dissolved air flotation unit consists of two separate devices:
pressurized capsule and lamellar settling.
The pressurized capsule is a cylindrical chamber provided at the
ends with 2 caps. Inside the capsule there are inserted water and air
under pressure. Water circuit is located at the top of the capsule and
water is introduced with the help of 4 sprinklers. In this way, water
is introduced as fine droplets dispersed and not as jet. The air
supply is located at the bottom of the capsule. To obtain a longer
time contact between air bubbles introduced through the circular
pipe and the water, we have found the solution to introduce moving
plastic elements inside the capsule.
Description The innovative aspects and the advantages of the dissolved air
flotation unit are:
- Process gives greater efficiency due to moving parts inside the
capsule that "tease" trail of bubbles to the surface;
- Through the use of sprinklers, water is sprayed in very fine
droplets and is dispersed within the capsule, thus creating a
large air-water contact surface;
- Quick and easy installation even in existing clarifiers;
1. The treatment method provides greater efficiency without
using any bio-products or consumables that enhance the
biological degradation processes - completely organic process;
2. Modular construction.
Image
Class 1
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