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A Facile Ultrapure Water Production Method for Electrolysis via Multilayered Photovoltaic/Membrane Distillation

  • Stony Brook University
  • King Abdullah University of Science and Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultrapure water production is vital for sustainable green hydrogen production by electrolysis. The current industrial process to generate ultrapure water involves energy-intensive processes, such as reverse osmosis. This study demonstrates a facile method to produce ultrapure water from simulated seawater using a low capital cost and low-energy-consuming membrane distillation (MD) approach that is driven by the waste heat from photovoltaic (PV) panels. To optimize the PV-MD operation, modeling efforts to design a multilayered MD system were carried out. The results were used to guide the construction of several prototype devices using different materials. The best performing PV-MD device, containing evaporation and condensation regions made from steel sheets and polytetrafluoroethylene (PTFE) membranes, can produce high-purity water with conductivity less than 40 mS and flux higher than 100 g/m2 h, which is suitable for typical electrolyzer use.

Original languageEnglish
Title of host publication2025 AIChE Annual Meeting
PublisherAmerican Institute of Chemical Engineers
ISBN (Electronic)9798331332143
DOIs
StatePublished - 2025
Event2025 AIChE Annual Meeting - Boston, United States
Duration: Nov 2 2025Nov 6 2025

Publication series

NameAIChE Annual Meeting, Conference Proceedings
Volume2025-November

Conference

Conference2025 AIChE Annual Meeting
Country/TerritoryUnited States
CityBoston
Period11/2/2511/6/25

Keywords

  • electrolysis
  • hydrogen production
  • membrane distillation
  • photovoltaic
  • ultrapure water

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