Energy analysis of a laboratory process of water desalination by pervaporation and reverse osmosis

• Autorzy: Gortat Izabela , Marszałek Joanna , Wawrzyniak Paweł

Identyfikatory

DOI

10.24425/cpe.2023.147407

• Języki publikacji: EN

Abstrakty

EN

Fresh water is essential for life. More and more countries around the world are facing scarcity of drinking water, which affects over 50% of the global population. Due to human activity such as industrial development and the increasing greenhouse effect, the amount of drinking water is drastically decreasing. To address this issue, various methods of sea and brackish water desalination are used. In this study, an energy analysis (specific energy consumption, SEC) of two laboratory membrane processes, reverse osmosis (RO) and pervaporation (PV), was conducted. A model feed system saline water at 0.8, and 3.5% wt. NaCl was used. The efficiency and selectivity of membranes used in PV and RO were examined, and power of the devices was measured. The desalination processes were found to have a high retention factor (over 99%) for both PV and RO. For PV, the permeate fluxes were small but they increased with increasing feed flow rate, process temperature and salt content in the feed. The calculated SEC values for both laboratory processes ranged from 2 to 70 MWh/m 3. Lowering the process temperature, which consumes 30 to 60% of the total energy used in the PV process, can be an important factor in reducing energy consumption

Słowa kluczowe

EN

specific energy consumption; water desalination; pervaporation reverse; osmosis; laboratory process

PL

zużycie energii właściwej; odsalanie wody; perwaporacja odwrócona; osmoza; proces laboratoryjny

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering : New Frontiers
• Rocznik: 2024
• Tom: Vol. 45, nr 1
• Strony: art. no. e48
• Opis fizyczny: Bibliogr. 27 poz., tab., wykr.

Twórcy

autor

Gortat Izabela

• Lodz University of Technology, Faculty of Process and Environmental Engineering, Wólczańska 213, 93-005 Łódź, Poland

• https://orcid.org/0000-0003-4502-6397

autor

Marszałek Joanna

• Lodz University of Technology, Faculty of Process and Environmental Engineering, Wólczańska 213, 93-005 Łódź, Poland

• https://orcid.org/0000-0001-7986-2743

autor

Wawrzyniak Paweł

• Lodz University of Technology, Faculty of Process and Environmental Engineering, Wólczańska 213, 93-005 Łódź, Poland

• https://orcid.org/0000-0003-4203-8253

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)