Flotation
WREX Dissolved Air Flotation & Microbubble Flotation Equipment
The Wrex flotation thickening and clarification systems are fitted with the following features:
- High efficiency countercurrent flotation flow patterns.
- Separate phase material subject to high intensity 'air lift' at all stages of flotation.
- Automatic float dewatering systems; e.g. to increase typical oily floats from 2-4 to 5-8 % solids.
- Solids s.g. separation differential between sludge and float typically 0.2.
- Separate automated, hydraulically driven, sludge and float removal systems.
- Optional multiple coagulant and flocculant injection points.
- Optional gas lift systems with provision for gas, float, sludge and clarified liquor all removed at separate positions.
- Most designs use no moving parts in separation zones or chamber.
- Compact high rate separate phase separation plants.
- Capacities from 1 - 1000 m3/hr.
- High intensity gas lift systems for heavy solids removal; e.g. for the mining industries.
- Plants accept a wide range of feed flows without any deterioration in performance.
- Filtration or other post flotation treatment of clarification systems often not required.
- Intrinsically safe plants using only pneumatic principles for use in the oil and gas industries.
- Proprietary air/gas injection systems, to control bubble size & eliminate troublesome large bubble release.
Applications include:
- Coal wash waters.
- Oil stripping from refinery oily liquor.
- Oil stripping from compressor oily water in the oil/gas industry.
- Copper carbonate flotation.
- Pulp & paper industries - black liquor effluent treatment.
- Pulp and paper industries - white liquor clarification.
- Stripping of metallic inks from printing effluents.
- Oil and grease flotation systems in the food and beverage industries.
- Tertiary effluent clarification.
- Stripping of fine metals and ores from liquor.