ISHS Acta Horticulturae 119: III International Symposium on Water supply and Irrigation in the open and under Protected Cultivation
DESALINATION BY REVERSE OSMOSIS IN HORTICULTURE |
| Author: | J.C. Schippers |
| Abstract:
Water of good quality is of vital importance for a good yield and a good quality of several crops. At many locations groundwater, surface water and tap water do not meet the quality requirements. Rain water is very suitable for irrigation purposes, but requires storage. When land area is costly, reverse osmosis is a reasonable alternative. In the western part of the Netherlands more than two hundred reverse osmosis installations are in operation. These installations mainly process brackish groundwater without any pretreatment. At some locations salinity is so high that sea water membranes have to be applied. The capital and operating costs of installations equipped with these membranes are considerably higher. Alternatives for the treatment of saline groundwater are the treatment of tap water or the treatment of surface water. Tap water, however, is rather costly, while treatment of surface water requires installations equipped with tubular membranes. These installations are considerably more expensive than those equipped with the hollow fibre or spiral wound membrane device. | |
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