B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 65/06 (2006.01)
Patent
CA 2509017
Membranes, for example immersed polymeric ultrafiltration or microfiltration membranes, are cleaned by contacting them with a chemical cleaner comprising one or more of a gluconate, a hydrosulfite, a metabisulfite or an acid, for example phosphoric acid. The membranes may have been exposed to pretreatment involving adding iron or aluminum to water to be treated. Methods for treating a waste cleaning solution were described.
Adams Nicholas William H.
Singh Manwinder
Syed Murtuza Ali
Zsirai Istvan
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Zenon Environmental Inc.
Zenon Technology Partnership
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