Computer modelling of the Nereda® Aerobic Granular Sludge process using commercially available models: PRESENTATION ONLY

Oliver, B., Robertson, S.1, van Bentem, A.2, van Opijnen, J.2, 1Royal HaskoningDHV, UK, 2Royal HaskoningDHV, Netherlands


◼ Recent advances
◼ Ten years on from 1st installation in The Netherlands to over 70 projects have been awarded Worldwide
◼ Here in the UK 12 projects awarded, 8 now operational
◼ Present some learning and notable successes
◼ And a glimpse of what next

◼ Started up on 22.10.2018 with 60% flow and 1.5 g/l of granular seed sludge
◼ Influent loads at start-up were circa 70% of the design loads (2036)
◼ Good nitrification rate and effluent compliance achieved within 2 weeks
◼ Phased start-up to re-use existing FST
◼ Treated 100% flow and loads from 8th May 2019 with the 4.5 g/l
◼ Granulation now at 70 %

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