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008			230213b |||||||| |||| 00| 0 eng d
040			_aMSU _cMSU _erda
100			_aBALAKINA, M.N
245			_aWastewater purification of biogenic elements
264			_aKiev _bAllerton Press _c2013
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aJournal of Water Chemistry and Technology _vVolume , number ,
520			_aThe retention capacity of the ESPA-1 membrane for nitrates, nitrites, ammonium, and phosphates has been investigated. Its application was shown to be most effective for the removal of phosphates. In this case the membrane retention capacity amounts to ∼99.8%. Nitrates are removed on conditions of up to the 90% permeate conversion in case of their initial concentration of 400 mg/dm3 and up to the 70% conversion in the interval of initial concentrations of 400–700 mg/dm3. In the case of the initial concentration of ammonium ions equal to 300 mg/dm3 and 400 mg/dm3 their removal is possible up to the 70% and 60% permeate conversions, respectively. In relation to nitrites this membrane shows a low retention capacity; however the preliminary oxidation of the latter to nitrates makes it possible to ensure their sufficiently effective removal.
650			_aammonium
650			_anitrates
650			_anitrites
700			_aKUCHERUK, D.D
700			_aBILYK, Yu. S
700			_aOSIPENKO, V.O
700			_aSHKAVRO, V.O
700			_aALEKSANDROV, M.V
700			_aGONCHARUK, V.V
856			_uhttps://doi.org/10.3103/S1063455X13050044
942			_2lcc _cJA
999			_c160853 _d160853