Cleaning system for flat-plate membrane cartridges

Details Cleaning system for flat-plate membrane cartridges Cleaning system for flat-plate membrane cartridges

2011-04-12

2011-04-12

Kornakov, Michael (Department: 1714)

Cleaning and liquid contact with solids

Processes

Work handled in bulk or groups

C134S022180, C134S034000

Reexamination Certificate

active

07922829

ABSTRACT:
A cleaning system and method remove localized caked or dewatered solids from flat-plate membranes in a sewage treatment plant. The caked sludge on the membranes is removed by intense coherent water sprays directed into the spaces between cartridges of a cassette, without removing the cartridges from the cassette. The sprays can be delivered from the top and/or bottom of the cassette, or the side panels of a cassette can be removed for spraying from at least one side, preferably both sides, using a mechanical device with movable spray bars and motor-driven advancing of the spray bars. In one preferred form of the system the apparatus includes horizontal cutting jets followed by angled cutting jets that further break up and wash away the loosened sludge. Jet diameter, velocity and pressure are controlled so as not to damage the membranes or cartridges but to achieve efficient cleaning.

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