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Oily Wastewater Treatment And Importance Of Industrial Wastewater Recycling

Industrialization over the past decades has contributed to surface and ground water pollution. Industrial residues left in the discarded water are prime culprits for contaminating fresh water streams and precious aquifers. Industrial water generally contains oil, surfactants, pathogens, metals, nitrates and phosphates among others.

Treatment of industrially contaminated water helps in safe disposal and helps in recycling of cleaners and solvents extracted after the treatment. This means it is eco-friendly, economical and sustainable.

Either to meet compliance or for economic reasons, machine shops and other industries have started to treat oily and contaminated water for reuse. But oily wastewater treatment through traditional technologies including coalescers and oil water separators is not completely effective. Most commonly used surfactants such as detergents, cleaners and other additives are present in the oily water to form stabilized emulsion and although conventional processes will remove tramp (free) oils, they fail to remove emulsified oils or the additives out of the water.

The processed effluent from FSI’s WRS system can meet the government's most stringent requirements for discharge or recycling for reuse. In a typical oily wastewater application, the volume of the wastewater is commonly reduced down to less than 10% of the original volume. Most standard WRS systems with a process flow capacity from 50 gpd (gallon per day) to 4,500 gpd are readily available. Customized systems or systems with a process capacity higher than 4,500 gpd can be provided.

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