Combined MMBR and microscreen for tertiary upgrade

Proceedings

Combined MMBR and microscreen for tertiary upgrade

Cannon, A.1, Healey, K.1 and Green, S.2, 1Veolia Water Solutions and Technologies, UK, 2Yorkshire Water, UK PRESENTATION ONLY
(free)

1. MBBR Technology

2. Discfilter Technology

3. Why combine?

4. Cudworth STW’s Upgrade

5. Performance

MBBR = Moving Bed Biofilm Reactor

The process is based on the biofilm principle and the core of the process is the biofilm carrier elements made from polyethylene /polypropylene with a density slightly below that of water.

These are designed to provide a large protected surface for the bacteria culture.

The reactors are filled up to 67% of their volume with these carrier elements.

The biofilm carrier elements are kept suspended in the water by air from diffusers in the aerobic reactors and by means of a mixer in the anoxic reactors.

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Proceedings