Investigation of the main properties of reverse osmosis membranes and their influence on changes in the physico-chemical composition of aqueous solutions

The article discusses the relevance and features of use reverse osmosis when adjusting physico-chemical composition aqueous solutions especially drinking water. main element any plant is a semi-permeable membrane, which polymer composite material uneven density. It has been shown that membranes must meet certain requirements, are selectivity to components removed at this functional stage, compliance with high level permeability, i.e. stable physical chemical properties during their operation. physicochemical (selectivity, specific productivity, concentration reduction factor, separation factor) methods for calculation described. effect temperature on change in productivity semipermeable membrane MgCl2 CaCl2 salts experimentally studied. proven an increase solution leads linear decrease productivity. Experimental studies were carried out model study pressure selectivity. shrinkage structure noticeable first hours its operation, membrane. A practically steady state terms usually occurs 4–5 hours. was studied initial solution, occur. presented range concentrations higher electrolytes 2:2 type than 2-1 type. parametric dependences factor Filmtec TW30-1812-50 over time “model multicomponent solution” P = 18 atm given.