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- [3] THE REMOVAL OF HUMIC SUBSTANCES BY ION-EXCHANGE AND MEMBRANE PROCESSES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1987, 193 : 179 - ENVR
- [5] REMOVAL OF SULFATE BY ION-EXCHANGE JOURNAL AMERICAN WATER WORKS ASSOCIATION, 1979, 71 (06): : 343 - 348
- [6] ION-EXCHANGE FOR NITRATE REMOVAL JOURNAL AMERICAN WATER WORKS ASSOCIATION, 1993, 85 (04): : 135 - 143
- [8] NITRATE REMOVAL BY ION-EXCHANGE JOURNAL WATER POLLUTION CONTROL FEDERATION, 1973, 45 (04): : 632 - 636