Organic matter parameters in WWTP – a critical review and recommendations for application in activated sludge modelling
| Autor: | Johannes Effenberger, Heike Brückner, Peter Krebs, Markus Ahnert, Thomas Schalk, Volker Kuehn |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Environmental Engineering Sewage food and beverages Fraction (chemistry) Particulates wwtp Pulp and paper industry Waste Disposal Fluid Environmental technology. Sanitary engineering Water Purification activated sludge modelling routine data Activated sludge chemistry sludge composition Biochemical composition chemical composition organic solids Organic matter Sewage treatment Composition (visual arts) cod characterization TD1-1066 Water Science and Technology |
| Zdroj: | Water Science and Technology, Vol 84, Iss 9, Pp 2093-2112 (2021) |
| ISSN: | 1996-9732 0273-1223 |
| Popis: | This paper includes a comprehensive literature review of sludge composition data from wastewater treatment plants. 722 data sets from 249 sources were used to establish typical ratios between COD and solids-based parameters and to verify rule-of-thumb values, respectively. Confirmation of these typical ratios can also be accomplished by using biochemical composition data. It is shown that a correlation between data from proteins, lipids and carbohydrates analysis can be related to COD/VSS ratios. Finally, using the findings from the literature review, the organic and inorganic conversion factors of COD fractions in activated sludge models are adjusted to solids-based parameters. It was shown that with the adjustments of the factors and a partition of the particulate inert fraction into a fraction assigned to the influent and a fraction assigned to the endogenous products, a better agreement with the ratios of COD/VSS in the individual sludge streams can be established. HIGHLIGHTS Currently the largest collection of literature-based sludge data on municipal wastewater treatment plants.; Recommendations for adjustment of specific VS contents in model fractions of activated sludge models and further model improvements.; Linking biochemical data with typical wastewater parameters. |
| Databáze: | OpenAIRE |
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