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  4. Cleaning strategies and cost modelling of experimental membrane-based desalination plants
 
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2021
Journal Article
Titel

Cleaning strategies and cost modelling of experimental membrane-based desalination plants

Abstract
In Project WASTEC, an experimental Reverse Osmosis (RO) desalination system was developed. It serves as a platform for testing new technologies. For this system, we solved two problems, which are described in this paper. Firstly, we developed and investigated strategies for scheduling chemical enhanced backwashing and chemical cleaning and secondly, due to the experimental nature of the project, several new technological developments with respect to materials and methods were integrated into the system and requires tools for evaluating the economic viability of the new technologies. In this task, the economics of membrane-based desalination will be investigated. Baseline systems of reverse osmosis and pretreatment systems (microfiltration and ultrafiltration) will be economically examined and compared for their investments and operational costs. Sensitivity of the different plant and membrane parameters to the cost will be studied. Results show that with respect to costs, for a 200m3/hr design capacity plant, a volume of water is produced by a MF process at a cost of $0.494 and at a cost of $0.486 by an ultrafiltration process microfiltration. The reverse osmosis process cannot be compared directly, but it required $ 0.49 / m3 for a plant with 56 m3/hour design capacity. The values are in line with the costs reported in literature for membrane-based filtration.
Author(s)
Karimanzira, Divas
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB
Went, Joachim
Neumann, Frank
Fraunhofer-Institut für Schicht- und Oberflächentechnik IST
Zeitschrift
International journal of econometrics and financial management
Project(s)
WASTEC
Funder
Fraunhofer-Gesellschaft FhG
DOI
10.12691/ijefm-9-1-2
File(s)
N-642509.pdf (1.02 MB)
Language
English
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Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB
Fraunhofer-Institut für Solare Energiesysteme ISE
Fraunhofer-Institut für Schicht- und Oberflächentechnik IST
Tags
  • operational strategy

  • membrane filtration

  • cost estimation

  • cost sensitivity anal...

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