Fast and furious: Optimization and
validation of high-rate contact stabilization
(HiCS) for recovery of organics from sewage
Francis A. Meerburg, Arifur Rahman, Tim Van Winckel, Koen Pauwels, Haydée De
Clippeleir, Ahmed Al-Omari, Sudhir Murthy, Nico Boon, Siegfried E. Vlaeminck
2
Maximizing
energy recovery
Organic carbon
redirection
grit removal
High-rate activated sludge
Partial nitritation/
anammox
biogas
UV disinfection
Nutrients /
dewatered sludge
Energy
recovery
Electricity
(& heat)
Ultrafiltration/
Reverse Osmosis
Anaerobic
digestion
Dewatering /
nutrient recovery
(Verstraete & Vlaeminck, 2011, Int J Sust Dev World, ‘ZeroWasteWater’)
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Potable
water
High-rate contact stabilization
2
4
High-rate contact stabilization
2
CO2
CO2
CO2
CH4
CH4
CH4
5
HiCS optimization
8 SBR reactors (3 L)
Synthetic sewage (800 mg COD/L)
15°C lab
6
Carbon redirection
Sludge
Up to 59% to sludge
Dissolved in effluent
CO2
7
Poly-β-hydroxybutyrate storage
Max. 2.3% of
recovered carbon
8
Protein:carbohydrate ratio of EPS
Best performance at SRT 1 d and tc:ts 15:40 min
Effluent quality needs improvement!
9
Published in:
Live fast, die young: Optimizing retention times in high-rate contact
stabilization for maximal recovery of organics from wastewater
Environmental Science & Technology 2016, 50(17), p 9781–9790
[email protected]
Francis A. Meerburg, Arifur Rahman, Tim Van Winckel, Koen Pauwels, Haydée De
Clippeleir, Ahmed Al-Omari, Sudhir Murthy, Nico Boon, Siegfried E. Vlaeminck