Nanotechnology for deep sewage treatment of airports from toxic pollution, materials and equipment for its implementation
The work is devoted to the development of an effective and low-cost membrane-photocatalytic technology for the deep treatment of industrial wastewater from toxic pollution, in particular, airport wastewater containing toxic ethylene glycol. The whole technological chain has been implemented: fundamentally new materials have been developed; Suspended nano- and micro-photocatalysts, which are active even with visible radiation, were created from them; a pilot membrane-photocatalytic unit was manufactured and tested, designed for the deep treatment of wastewater contaminated with toxicity, up to regulatory requirements; the technological scheme of wastewater treatment of airports from toxic ethylene glycol and oil products has been developed and implemented. Methods for producing photocatalysts based on zinc oxide and a device for photocatalytic treatment of wastewater contaminated with toxic impurities, to regulatory requirements, are patented and patented by us. The proposed technology of deep wastewater treatment is efficient, low-cost, environmentally friendly and safe. The technology does not create secondary waste; the created membrane photocatalytic installation is used for its realization. The installation combines three processes that provide deep water purification: complete photocatalytic destruction of all organic pollutants in the water on a photocatalyst suspended in polluted water; ultraviolet disinfection of water and membrane separation of the suspended photocatalyst from purified water.