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Record nummer 2235855
Titel artikel Statistical modelling of Fat, Oil and Grease (FOG) deposits in wastewater pump sumps
Auteur(s) Nieuwenhuis, E. ; Post, J. ; Duinmeijer, A. ; Langeveld, J. ; Clemens, F.
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer (2018)135
Paginering 155 - 167
Online full textINTERNET
Publicatie type Artikel
Taal Engels
Toelichting (Engels) The accumulation of FOG (Fat, Oil and Grease) deposits in sewer pumping stations results in an increase in maintenance costs, malfunctioning of pumps and, a potential increase of wastewater spills in receiving open water bodies. It is thought that a variety of parameters (e.g. geometry of the pump sump, pump operation, socioeconomic parameters of the catchment) influences the built-up of FOG. Based on a database containing data of 126 pumping stations located in five Dutch municipalities a statistical model was built. It is shown that 3 parameters are most significant in explaining the occurrence of FOG deposits: mean income of the population in a catchment, the amount of energy (kinetic and potential) per m3 per day and the density of restaurants, bars and hotels in a catchment. Further it is shown that there are significant differences between municipalities that can be traced back to the local ‘design paradigm’. For example, in Amsterdam, the design philosophy of discharging in the pump sump under the water surface (and hence maintaining a low level of turbulence in the pump sump) results in an increase of the probability of the formation of FOG.
Betrokken instanties Deltares
Technische Universiteit Delft
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