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Practical and realistic approach for a successful use of filament wound filter housing based on bisphenol A polyester resin for purification of highly corrosive contaminated solutions is presented in this paper. Filament winding technology and basic terms about polyester and polymeric composite materials are described. Data about modes of producing neat (no reinforced) bisphenol A polyester resin specimens and composite material specimen, based on mentioned resin and glass fiber, are presented. Neat resin specimens were exposed to the single influence of aqueous solution of calcium hypochlorite, of sodium hydroxide, of sulphuric acid, of citric acid and liquid detergent for a period of 360 hours each, separately, and to the cumulative influence of all mentioned aqueous solutions for in overall period of 1440 hours. Tested properties of these specimens (mass change, hardness and impact resistance) showed that there is no negative influence on neat bisphenol A polyester resin quality. Filament wound composite reinforced glass fiber/bisphenol A polyester resin-based rings and cylinders were exposed to the influence of calcium hypochlorite aqueous solution for 1128 hours. Results of testing mass change, tensile breaking force and tensile strength of composite reinforced rings and hydraulic burst pressure of composite reinforced cylinders indicated that these specimens have high resistance to mentioned purification agent. It is concluded that the filter housing for purification of highly corrosive contaminated solutions can be produced by filament winding technology using bisphenol A polyester resin and glass fiber.

Filament wound filter housing: Key for rational purification process of highly corrosive solutions