Filtration or sedimentation – An analysis of choice of technology for primary treatment Investigating surface area requirement, energy usage and climate footprint
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Infrastructure and environmental engineering (MPIEE), MSc
Publicerad
2023
Författare
GHOLIZADEH NAMAGHI , REZA
ÖSTERMAN, MARCUS
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
This study aims to investigate and to compare the conventional sedimentation method
with a novel technology known as Drum Screening Liquid Filter (DSL) in the primary
treatment step. The primary objective is to assess the viability of DSL as an alternative
approach by examining factors such as surface area utilization, energy usage, and
environmental impact. To determine the surface area requirements, a devised
methodology based on the settling velocity of particles has been employed to calculate
the dimensions of the sedimentation basins. Additionally, information and design
methodologies pertaining to DSL filters have been sourced from HUBER wastewater
technology. In order to evaluate the environmental implications, a comprehensive Life
Cycle Assessment has been conducted. The findings of this research demonstrate that
DSL filters offer favorable performance characteristics, particularly when addressing
challenges related to limited surface area availability, energy efficiency, and
environmental sustainability. The results confirm that DSL filters occupy a smaller
surface area, consume less energy, and generate a reduced amount of CO2 emissions
compared to conventional sedimentation methods, thus highlighting their potential as a
promising alternative for wastewater treatment plants.
Beskrivning
Ämne/nyckelord
Sedimentation, filtration, drum filter, life cycle assessment, environmental footprints