Process and reactor for the microbiological treatment of water with a high oxygen demand

摘要

In a process for microbiological water treatment with high oxygen demand in a reactor with granular support material, the novelty is that the support material, used as aerobic microorganisms growth substrate, is completely and continuously agitated by an upward flow of oxygen-contg. gas, while, opt. nutrient-enriched dirty water continuously seeps downwardly through the support material. Also claimed is a reactor for carrying out the above process, pref. in which the support material contains a material (e.g. foamed polystyrene) of less than 1 (pref. less than 0.3) g/cm3 density.