Continuous flow integrated chemical (ozone)-activated sludge system treating combined agroindustrial-domestic wastewater
作者： Fernando J. Beltrán , Juan F. García-Araya , Pedro M. Álvarez
DOI: 10.1002/EP.670190115
关键词: Biomass 、 Activated sludge 、 Waste management 、 Pulp and paper industry 、 Wastewater 、 Ozone 、 Biodegradation 、 Nitrification 、 Bacterial growth 、 Organic matter 、 Chemistry 、 General Environmental Science
摘要: Mixtures of wine-distillery and domestic wastewater were continuously treated by combined ozonation- activated sludge (ASP) ASP-ozonation systems. Ozone has been shown to effectively oxidize recalcitrant compounds in more readily biodegrade oxidation products that can betreated using a conventional aerobic biological treatment. Main parameters affecting the overall efficiency ozone dose required for biodegradability enhancement food microorganism ratio (F/M) at step. Preozonation enhances not only COD TOC disappearance but also nitrogen re m oval subsequent nitrification step settling properties sludge. Kinetic results this study reveal ozonation treatment prior ASP favors organic matter removal an increase maximum microbial growth rate, μmax, decrease inhibitory effect microorganisms. Biomass oxygen uptake rate tests showed be highly biodegradable. The feasibility single treatments was examined primarily terms efficiency. Best attained with integrated ozonation-ASP system.
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