Use of Lime Clarification and Reverse Osmosis in Water Reclamation

Water Factory 21 (WF21) is an advanced wastewater treatment facility designed to produce $0.66\ {\rm m}^{3}/{\rm s}$ (15 mgd) potable quality water for groundwater recharge and protection against seawater intrusion. The treatment processes include lime clarification, air stripping, recarbonation, pr...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1984-12, Vol.56 (12), p.1238-1246
Main Author: Argo, David R.
Format: Article
Language:English
Subjects:
Applied sciences
Capital costs
Economic costs
Exact sciences and technology
General purification processes
Groundwater
Pilot plants
Pollution
Process Design
Unit costs
Wastewater
Wastewater treatment
Wastewaters
Water quality
Water reclamation
Water supply
Water treatment and pollution
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Summary:Water Factory 21 (WF21) is an advanced wastewater treatment facility designed to produce $0.66\ {\rm m}^{3}/{\rm s}$ (15 mgd) potable quality water for groundwater recharge and protection against seawater intrusion. The treatment processes include lime clarification, air stripping, recarbonation, prechlorination, mixed media filtration, granular activated carbon adsorption, final chlorination, and reverse osmosis (RO) demineralization. To reduce costs, pretreatment requirements before demineralization have been reduced. Results have shown that lime clarification before RO treatment effectively removes a wide range of contaminants, including trace organics. The data show that the lime/RO process can produce a similar effluent quality to that from the full WF21 system, at lower cost.
ISSN:0043-1303
2327-7467