Abstract
It was studied processes of ion-exchange water purification from ammonium ions from model solutions on cation exchangers and on zeolite. It was established dependencies ammonium sorption on the form of ion exchanger, the ratio of ammonium and calcium in water and the level of ion concentrations in solution. It was shown that the strongly acid cation exchanger KU-2-8 in Na+-form has a low selectivity for ammonium ions, in comparison with the H+-form. It was established that the sorption efficiency of ammonium ions on cation exchangers KU-2-8 and Dowex Mac-3 decreases in the presence of calcium ions. It was determined that regeneration of cation exchanger KU-2-8 was more effective when hydrochloric acid solutions were used. It was shown that ammonium sorption on zeolite from tap water goes in the same way as from model solutions. It was determined the boundary capacity of the zeolite for ammonium ions and it was amounted 40 mg/g. The regeneration of zeolite with a sodium chloride solution was investigated and it was established that the degree of regeneration reached 100 %. Bibl. 16, Fig. 6, Tab. 1.
Highlights
Îõðàíà îêðóæàþùåé ñðåäûÌàêàðåíêî È.Í., êàíä. òåõí. íàóê, Òðóñ È.Í., êàíä. òåõí. íàóê, Ïåòðè÷åíêî À.È., Êèé÷åíêî À.Þ
Ãëîáàëüíàÿ ïðîáëåìà ïèòüåâîé âîäû íåðàçðûâíî ñâÿçàíà ñ ïðîáëåìîé êà÷åñòâåííîé î÷èñòêè ñòî÷íûõ âîä è ïðåäîòâðàùåíèåì çàãðÿçíåíèÿ èñòî÷íèêîâ ÷èñòîé ïðåñíîé âîäû
Öåëüþ äàííîé ðàáîòû áûëî èçó÷åíèå ïàðàìåòðîâ ñîðáöèè è äåñîðáöèè èîíîâ àììîíèÿ íà ïðèðîäíûõ è èñêóññòâåííûõ èîíîîáìåííûõ ìàòåðèàëàõ
Summary
Ìàêàðåíêî È.Í., êàíä. òåõí. íàóê, Òðóñ È.Í., êàíä. òåõí. íàóê, Ïåòðè÷åíêî À.È., Êèé÷åíêî À.Þ. Èññëåäîâàíèå ýôôåêòèâíîñòè ñîðáöèîííîé î÷èñòêè âîäû îò èîíîâ àììîíèÿ íà ïðèðîäíûõ è èñêóññòâåííûõ ñîðáåíòàõ. Èçó÷åíû ïðîöåññû èîíîîáìåííîé î÷èñòêè âîäû îò èîíîâ àììîíèÿ èç ìîäåëüíûõ ðàñòâîðîâ íà êàòèîíèòàõ è íà öåîëèòå. Ïîêàçàíî, ÷òî ñîðáöèÿ àììîíèÿ íà öåîëèòå èç âîäîïðîâîäíîé âîäû ïðîõîäèò òàê æå, êàê è èç ìîäåëüíûõ ðàñòâîðîâ.  íàñòîÿùåå âðåìÿ îäíîé èç ãëàâíûõ ïðîáëåì â îáëàñòè î÷èñòêè ïðèðîäíûõ è ñòî÷íûõ âîä ÿâëÿåòñÿ óäàëåíèå èç íèõ áèîãåííûõ ýëåìåíòîâ — ñîåäèíåíèé àçîòà è ôîñôîðà, âûçûâàþùèõ ýâòðîôèêàöèþ âîäíûõ îáúåêòîâ [1]. Öåëüþ äàííîé ðàáîòû áûëî èçó÷åíèå ïàðàìåòðîâ ñîðáöèè è äåñîðáöèè èîíîâ àììîíèÿ íà ïðèðîäíûõ è èñêóññòâåííûõ èîíîîáìåííûõ ìàòåðèàëàõ. — èçó÷èòü ïðîöåññû èîíîîáìåííîãî èçâëå÷åíèÿ àììîíèÿ èç âîäû íà êàòèîíèòàõ â çàâèñèìîñòè îò ñîñòàâà âîäû è ôîðìû èîíèòîâ;. — îïðåäåëèòü âëèÿíèå èîíîâ æåñòêîñòè íà ýôôåêòèâíîñòü èîíîîáìåííîãî èçâëå÷åíèÿ àììîíèÿ èç âîäû;. — èññëåäîâàòü ïðîöåññû äåñîðáöèè àììîíèÿ ñ êàòèîíèòîâ äëÿ ðàçðàáîòêè ýôôåêòèâíûõ ìåòîäîâ ðåãåíåðàöèè èîíîîáìåííûõ ñìîë
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