Застосування полімерних матеріалів в комбінованих технологіях водоочищення

Abstract

The article is devoted to the development of combined technology of tanneries wastewater treatment. Wastewater treatment involves a combination of electrochemical oxidation with methods of coagulation and flocculation, for the intensification was used electrolysis processes and cavitation. Iron(III) chloride as a chemical coagulant and solution based on polyacrylamide as a flocculant were used. The proposed combined technology reduces the content of sulfides, chlorides, phosphates by 77.4 %, 10.9 % and 6.2 %, respectively. The content of chromium compounds decreased by 99.84 %. Application of sorption method is proposed for deep wastewater treatment of tanneries. As sorption materials proposed application of fibrous waste from the textile industry based on high-volume combined loop threads consisting of polyurethane fibers and textured polyamide fibers 6.6 f20/1. To increase the hydrophilicity and sorption characteristics of the obtained material, up to 50 % of fibrous waste of flax or hemp can be introduced into the composition.