MIXED CELL, LAMELLAR AND OPEN CELL FLOATS

Process Description Dissolved air flotation is a process which separates solid particles from liquids by means of advanced FADAR® (high performance dissolved air flotation) flotation technology. Thanks to the advanced FADAR® technology, our equipment produces a stream of micro air bubbles that adhere to the floccules, raising them to the surface where a system of scrapers drags the sludge bed generated to the hopper that collects the sludge, reducing the total suspended solids by up to 90%, reducing the COD and obtaining a sludge dryness of around 6%. FADAR® TECHNOLOGY Dissolved air floats separate...

STAGES OF THE PROCESS DISSOLVED AIR FLOTATION • Dissolved air bubble formation. • Adhesion of bubbles to particles to form air/ solid particles. • Formation of air/solid particle conglomerate and flotation of the formed conglomerate. • Separation of the sludge formed. THE GREAT ADVANTAGE EXCLUSIVE AIR INJECTION SYSTEM System integrated in the flocculation tube. Improves the performance of dissolved air flotation by injecting micro bubbles of air into the floc. Innovation developed by Toro Equipment that allows a higher bubble density to be achieved than with conventional systems, thus increasing...

Operation Certain chemical compounds are usually added to facilitate the flotation process. For the most part, these chemical reagents work in a way that creates a surface or structure that allows air bubbles to be easily absorbed or trapped. Inorganic chemical reagents, such as iron or aluminium salts and activated silica, are used to aggregate the solid particles so as to create a structure that facilitates the absorption of air bubbles. Various organic polymers can also be used to modify the nature of the air-liquid or solid-liquid interfaces, or both. In general, these compounds act at the...

Types of floats • From 2 m3/h up to 600 m3/h with recirculation. • Linear scraping system. MIXED CELL PART OF THE OPEN AREA PART OF THE LAMELLAR AREA • Produces polishing effect, high outlet water quality. • Removal of 40% to 60% of solids, those of bigger size. • Protected against outlet overloads. • Solid, high-strength infused GRP lamella construction, does not collapse. Easy to clean. LAMELLAR CELL DESIGNED TO CELDA ABIERTA DISIGNED TO • High flow rates. • High solids load. • Low suspended solids load. • Avoid clogging.

MAXIMUM HEIGHT *Dimensions may vary depending on the mounting position of the skid. Compressed air pressure will be between 6 and 8 bar for all models. The flow rate will depend on temperature, salinity and solids loading. The design temperature for the flow rates given in the table is 15-25oC. Design salinity up to 5,000 µS. Maximum solids loading will depend on float/skid configuration. ADVANTAGES • Good results with large volumes of solids resistant to decantation. • High floc ascension speed. • 100% resistant to the corrosive effluents generated. • Safety system. • Different installation...

MAXIMUM HEIGHT *Dimensions may vary depending on the mounting position of the skid. Compressed air pressure will be between 6 and 8 bar for all models. The flow rate will depend on temperature, salinity and solids loading. The design temperature for the flow rates given in the table is 15-25oC. Design salinity up to 5.000 µS. Maximum solids loading will depend on float/skid configuration.

Customisation In our factory in Villavaquerín we manufacture different models of floats which, together with the different sizes of flocculators and pressurisation skid, allow us to adapt to the needs of the client depending on the flow and load of solids to be treated. PRESSURIZATION SKID FLOCCULATOR PIPE Formed by pressure vessel, pumps, valves, supports and base in GRP, and structure in AISI 316. Allows in-line dosing of chemicals into the water. It is composed of PVC, polypropylene, polyethylene or stainless steel tubes, depending on the application. This means that depending on the solids...

Optional EQUIPMENT STRUCTURE Material AISI-304 Material AISI-316 Steel in contact with water AISI-316 Steel in contact with water Duplex Structure elevation 1m PRESSURIZATION SYSTEMS Double centrifugal pump (1 in reserve) Compressor Pumpen 316 NO VAT Cover Cover flanges GRP material Sludge tank Automatic bottom drain Sludge thickening slats Weir lifting system ∙ Standard equipment ∙ Optinal equipment ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ Sludge thickening lamellas CONTROL PANEL Pneumatic panel Electric panel SAFETY AND SIGNALLING Emergency stop Emergency alarm FLOCCULATION TUBE Injection point reagents,...

Configuration Examples

Select your Dissolved Air Float FLOATS ADAPTED TO YOUR NEEDS WHAT WE NEED TO KNOW • Flow rate. • Application. • Solids loading. • Working temperature. • Working hours. • Inlet pH. • Water conductivity. • Installation of options. E.g.: lid or co

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