STUDY THE POSSIBILITY OF OBTAINING MODIFIED SORBENTS ON THE BASIS OF SLUDGE SODA OF PRODUCTION OF JSC "BEREZNIKI SODA PLANT"
On the basis of results of experimental researches the principal possibility of receiving the modified sorbents on the basis of sludges of soda production for liquidation of oil spills and oil products from a water surface is shown. As hydrophobe effect of ion reagent is used an aqueous solution of salts of organosilicon substances “Akvasil”. The studies were performed using sludge from soda production different storage period and particle size distribution. Researched the effects on buoyancy and the oil capacity of the modified sorbents: the type and dose of the modifier, the fractional composition of the initial sludge and processing conditions. As a result, it is determined that the most floating fraction is less than 0,1 mm, modified “Aquasil”. Processing sludge silicone water repellents and water-based to prevent the extraction of sludge water-soluble salts, increase the sorption properties: buoyancy up to 100 % (12 h), 96,5 % (96 h) and oil capacity to 0,9 kg/kg (motor oil) to 0,8 kg / kg (gasoline AI-92). Optimal modification conditions: temperature 90 ° C, processing time 30 minutes, the content of the active component of the water repellent 4-5 % of the mass.