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Water de-ironing on fiberous thermoplastic sorbents // Tomsk State Pedagogical University Bulletin. 2000. Issue 9 (25). P. 64-65

Technology of water de-ironing is presented, based on filtering water trough fiberous sorbents made by the formation fiberes of melted polypropilen, type 21030-6, spilled from rotating disc. In is established that degree of water de-ironing and the working ability of the filter greatly depend on filter staffing density and on thickness of iron hidroxide layer over the fiber. The ultimate concentration of iron in water after the filtering is less than 0,3 mg/1 under initial concentration about 10 mg/1, if the staffing density is 140 through 200 kg/ m cub. and height of filtering layer is 200 mm.

lonexchanging fiberous materials from thermoplastic wastages // Tomsk State Pedagogical University Bulletin. 2000. Issue 9 (25). P. 67-69

It is described how to produce polyolefines and pol-yethers from thermoplasts by sulphation of polystirol. The polystirol is introduced into the propilen in the pro¬portion of 5 through 15% in mass. The largest static exchange capacity belongs to the fiber obtaind by treating it with a sulfic acid of 93% concentration under temperature of 100-105 grad.C. The acheived purification coeffitient for Cz-137 is near to that acheived on ion-exchanging material of КУ-2-10 type.