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An Integrated Membrane Process for Oily Wastewater Treatment, Water Reuse and Valuable By-Products Recovery

The O-WaR project aims to develop an integrated process able to efficiently remove emulsified oil from wastewater, to reuse treated water, to recover by-products in wastewater and to reduce volumes of oily waste for disposal. Our solution consists
of a SiC membrane coated with an anti-fouling layer, an Induced Gas Flotation (IGF) unit for membrane concentrate treatment and a NF/RO unit for purification of SiC permeate and/or valuable by-products recovery from wastewater.
The O-WaR technology will be able to remove >99% of oil, solids and chemical oxygen demand, making treated oily wastewaters to easily meet discharge or reuse requirements, and produce <2% oily waste for off-site disposal, greatly
reducing waste disposal cost. In the case of olive mill wastewater (OMW) treatment the O-WaR technology can effectively recover valuable by-products in OMW and create high values (up to €700/kg of recovered small phenolics for functional
food, nutraceuticals and cosmeceuticals) for the industry. With the O-WaR technology we expect an annual profit of €1.4 million generated in an OMW treatment plant (20,000 m3/year capacity) and a total annual OPEX savings of €0.17 million
for a metal processing factory with 20,000 m3/year wastewater produced compared to using a conventional technology.
Also, the SMEs in this project are predicted to have a market opportunity of €11.7 million in first 5 years post project

INWATEC - oficjalny przedstawiciel firm
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