Economic Evaluation of Treatment Alternatives for Nitrate-Contaminated Water Suppliesby Mohamed F. Dahab, Univ of Nebraska-Lincoln, United States,
Document Type: Proceeding Paper
Part of: Planning Now for Irrigation and Drainage in the 21st Century
This paper discusses the economic feasibility of removing nitrates from water supplies. Potential nitrate treatment methods include ion exchange, reverse osmosis, bio-denitrification, and electrodialysis. The technical feasibility and economics of these processes indicate that only a few of these processes can be considered practical at the present. Results from bench-scale experiments as well as data from the literature are used to develop a basis of economic comparison. The results indicate that ion exchange is most advantageous when dealing with moderate nitrate contamination situations. However, in extreme contamination cases, bio-denitrification followed by other water purification processes (e.g. filtration) may be an effective method of treatment.
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