RIOgaleão airport now operating with new water treatment system

The system of oil and water separation at Galeão International Airport as supplied by Ecosan, the leading company in the supply of equipment for the treatment of primary and secondary domestic and industrial effluents, is now operational, with the aim of meeting the norms that establish the criteria and standards for release of liquid effluents, and the framework for design, installation, and operation of the oily water drainage system for service stations.

Making use of ‘turnkey’ products and services, Ecosan was hired by RIOgaleão, the operator responsible for the expansion and maintenance of the airport, to implement the project. This  meant the manufacture, transport, installation and commissioning of all equipment, accessories, instruments and tests for the oil water separator, including the creation of operating manuals,  the carrying out of test runs and a list of spare parts.

 

Water and oil separation

André Ricardo Telles, Ecosan’s Managing Director, explains that water with oil concentrations above certain permitted levels needs to go through an oil-water separation treatment prior to being discharged into natural reservoirs.

Airports are an ideal place for the application of this type of treatment as airplane stopping areas represent a potential oil derivatives spillage risk, according to Telles.

“There might be spills of hydraulic system oil, grease used in airplane component lubrication or from aviation fuel. Should a leak occur, and were it to rain shortly after, the rain water would release the oil into the environment”, Telles points out.

With the installation of the system, the oil is separated from the water, stored and discharged appropriately, without running the risk of its entering the environment. The treated water is channeled into the drainage system from which it is safely discharged into the environment.

 

Process

Water collection in the oil contaminated area is carried out of by means of channels provided with grilles that impede the entrance of large residues which may block the system. This water is stored in pipes underneath the channels. These pipes are capable of collecting a volume equivalent to the first 13 mm of rain to fall over the area.

The routing of the oily water to the treatment locale is by gravity feeding or pumping, depending on where the storage pipes are sited. The fluid is transported to the Calming Inlet, where a pre-treatment is performed that reverses the process of emulsification imposed on the mixture when it is pumped.

After this pre-treatment the water is channeled to the oil-water separator to be safely discharged. Oil stored in the separator should be removed periodically and disposed of appropriately.

Font: Vervi Assessoria de Imprensa


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