Nano-Filtration Membranes Fabrication for The Removal of Nitrate and Sulfate Ions Using Nanoparticles

In this study the evaluation of effect and amount of iron nanoparticle percent in reducing nitrate from drainage by using a polyether sulfone nanofiltre membrane is investigated. Three polyethersulfon membranes 15, 18 and 21 percent were made and the amount of elimination of nitrate in 50 ppm potassium nitrate (saltpeter) in 5, 10 and 15 bar , in presence of 3 , 6 and 9 percent nanoparticle and without it were evaluated. The effect of anion presence of 3 percent iron nanoparticle and without it were evaluated and compared. Results showed that by making three membranes of polyether sulfone and without nano presence by increasing pressure, we have the amount of nitrate elimination in 5 bar pressure and with 21 percent polyethersulfon membrane. in the next position , by using 21 percent polyethersulfon membrane which gives the most amount of elimination in preceeding position, the amount of nitrate elimination percent in presence of 3, 6 and 9 percent of iron nanoparticle in 10 bar pressure were evaluated that gives the most amount of nitrate elimination in presence 3 percent nanoprticle. Anion effect with nitrate is different in amount of its elimination in presence of nano and without it. The effect of potassium sulfate in non-presence of nano and with 21 percent polyethersulfon membrane and in presence of 3 percent iron nanoparticle and 21 percent polyethersulfon in 5, 10 and 15 bar pressures were evaluated. Result from this study showed that by adding sulfate to solution and by increasing pressure, the amount of nitrate elimination reduced.

کلیدواژه ها:

nanofilter membrane ، polyethersulfon ، nitrate ion ، drainage ، iron nanoparticle