A simulation-based optimisation approach to control nitrogen discharge by activated sludge under winter seasonal peak load

Abstract

, 2000), or high-load activated sludge systems with physicochemical primary settlers for larger cities, have been built. , 2002), but this solution can only be utilised in large treatment plants, as it requires skilful operation, and significant operating costs. , 2000). Nevertheless, recent studies suggest that activated sludge systems could be boosted to cope with peak loads. In order to ensure a temperature of approximately 10°C necessary for biological reactions, one of the precautions taken is to cover the activated sludge aeration tanks (building closed with a roof).

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