Process for potable water purification from nitrites

The invention relates to the water treatment, particularly to the reduction of nitrite-ions content into the potable water.Summary of the invention consists in the fact that a process for nitrite-ion content reduction in the potable water is proposed, including reductant water treatment. Sodium dihy...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SUBOTIN Iurie, GONŢA Maria, DUCA Gheorghe
Format: Patent
Sprache:eng ; rum ; rus
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to the water treatment, particularly to the reduction of nitrite-ions content into the potable water.Summary of the invention consists in the fact that a process for nitrite-ion content reduction in the potable water is proposed, including reductant water treatment. Sodium dihydroxyfumarate (DHFNa) is used as a reducing agent in the following concentration ratio:[DHFNa] : [NO2-] =1×10-3... 1×10-4the water purification being carried out during 10-30 min.The technical result of the inventio consists in reducing the nitrite-ions and formation of some nontoxic compounds. Invenţia se referă la tratarea apei, în special la micşorarea conţinutului de nitriţi în apa potabilă.Esenţa invenţiei constă în faptul că apa potabilă se tratează cu un reducător pentru ionul nitrit. În calitate de reducător seutilizează dihidroxifumaratul de natriu (DHFNa) în următorul raport de concentraţii:[DHFNa] : [NO2-] = 10purificarea apei efectuându-se timp de 10...30 min.Rezultatul tehnic al invenţiei constă în reducerea ionilor de nitriţi şi formarea unor produşi inofensivi. Изобретение относится к обработке воды, а именно к уменьшению содержания нитритов в питьевой воде.Сущность изобретения заключается в обработке питьевой воды восстановителем нитрит-ионов. В качестве восстановителя используется дигидроксифумарат натрия (DHFNa) в следующем соотношении концентраций, моль/л:[DHFNa]: [NO2-] = 1Ч10-3... 1Ч10-4очистка воды от нитритов осуществляется в течение 10-30 мин.Технический результат заключается в восстановлении нитритов с образованием нетоксичных соединений.Фиг.: 4