Organic matter parameters in WWTP - a critical review and recommendations for application in activated sludge modelling

被引:21
作者
Ahnert, Markus [1 ]
Schalk, Thomas [1 ]
Brueckner, Heike [1 ]
Effenberger, Johannes [2 ]
Kuehn, Volker [2 ]
Krebs, Peter [1 ]
机构
[1] Tech Univ Dresden, Inst Urban & Ind Water Management, D-01062 Dresden, Germany
[2] Stadtentwasserung Dresden GmbH, Scharfenberger Str 152, D-01139 Dresden, Germany
关键词
activated sludge modelling; chemical composition; COD characterization; organic solids; routine data; sludge composition; WWTP; ELEMENTAL COMPOSITION; CHEMICAL-COMPOSITION; INORGANIC MATERIAL; GENERAL-MODEL; BIOMASS; PROTEIN; STABILIZATION; CARBOHYDRATE; CONVERSION; MUNICIPAL;
D O I
10.2166/wst.2021.419
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
收藏
页码:2093 / 2112
页数:20
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