Method for passive mixing

An improved method that requires no electricity or moving parts to increase lime utilization where pebble quicklime (CaO) and/or hydrated lime (Ca(OH)2) is used for mine drainage treatment. Lime utilization at such facilities has been historically poor due to the low solubility, high density, and la...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Leavitt Bruce R, Danehy Timothy P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An improved method that requires no electricity or moving parts to increase lime utilization where pebble quicklime (CaO) and/or hydrated lime (Ca(OH)2) is used for mine drainage treatment. Lime utilization at such facilities has been historically poor due to the low solubility, high density, and large particle size of pebble quicklime. This invention takes two passive technologies, a diversion well-inspired MixWell system followed by a TROMPE-driven, air lift mixer for enhancing lime dissolution. It showed an estimated 40 to 57 percent reduction in lime usage.