Technologies for: Water treatment - Disinfection

Slow sand filtration

Slow sand filtration is a reliable, low-cost solution to eliminate soil-borne pathogens in soilless greenhouse cultivation systems. Phytophthora and Pythium can be effectively controlled, but Fusarium spp., viruses and nematodes are only partly removed by this technology. The principle is based on a supernatant water layer, which seeps through a sand layer. The mechanism of […]

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Disinfection of water with ultrafiltration

Ultrafiltration is a disinfection technique independent of light transmission or temperature and can, therefore, give an advantage over UV or slow sand filtration. Ultrafiltration operates on filtering of a water flow under pressure (3 bar). Water is pumped centrally through a vertical column. The column consists out of a tube of very fine fibers. Drain […]

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