Liquid purification or separation – Processes – Treatment by living organism
Patent
1981-02-05
1983-01-25
Cintins, Ivars C.
Liquid purification or separation
Processes
Treatment by living organism
210669, 210903, C02F 142, C02F 308
Patent
active
043702341
ABSTRACT:
A method and apparatus for treating wastewater containing ammonia by passing the wastewater over a bed of ion exchange particles capable of exchanging ammonium and having a growth of nitrifying bacteria thereon. The wastewater is preferably first oxygenated and then passed through a biological filter, a solids filter, and an organic filter before reaching the ion exchange particles.
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Environmental Science and Technology, vol. 11, 3/77, pp. 255-265, "Biological Regeneration of Ammonium Saturated Clinoptiolite" Semmens et al (I).
Journal Water Pollution Control, Dec. 1977, pp. 2431-2444, "Nitrogen Removed by Ion Exchange-Bio Reg of Clinoptilolite" Semmens et al (II).
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Aquaculture 4(1974), Johnson et al., "Ammonia Removal by Selective Ion Exchange, A Backup System", pp. 61-68.
UILU-WRC-76-0115 Aug. 1976 Semmens (1), "A feasibility . . . Clinoptilolite".
UIUC-WRC-79-0139 Mar. 1979 Semmens (11), "The Regeneration of Clinoptilolite by Biologically Restored Brine".
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