| 摘要 |
In a multi-stage treatment process to remove impurities from fresh water or waste water, the particulate and microbiological impurities are completely removed by physical-chemical processes. The water is conditioned with chemical additives and surrendered direct to an ultra-filtration process stage from which concentrated impurities are returned to a mixer and reactor container. Impurities are removed from the system in a flotation unit. Foreign bodies do not pass through the preliminary treatment stage and are discharged with the concentrate. The flotation stage has an internal compressed air bubble saturated liquid flow-path. Also claimed is a multi-stage water treatment assembly with an inlet (1), mixer/reactor (3), flocculation tanks (4.1/4.2), aerated water tank (4.3), flotation assembly, ultra-filtration tank (7) and circulation pump (8).
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