Research Trend of Membrane for Water Treatment by Analysis of Patent and Papers Publication

특허 및 논문 게재 분석을 통한 수처리용 분리막의 연구동향

  • Woo, Chang Hwa (Planning Center, Academy and Industry Collaboration, Gyeongsang National University)
  • 우창화 (경상대학교 산학협력단)
  • Received : 2017.06.23
  • Accepted : 2017.07.16
  • Published : 2017.08.10


Since the beginning of the water shortage by disasters such as global warming, environmental pollution, and drought, development of original technology and studies have been undergone to increase availability of water resources. Among them the water treatment separation membrane technology is an environmentally friendly process that does not use chemicals and shows better water quality improvement effect than conventional physicochemical and biological processes. The water treatment membrane can be applied to various fields such as waste water treatment, water purification treatment, seawater desalination, ion exchange process, ultrapure water production, organic solvent separation and water treatment technology, and it tends to expand the range of application. In the core technology of water treatment membrane, researches are being actively carried out to develop a separation membrane of better performance by controlling the pore size to adjust the separation performance. In this review, we summarized the frequency of announcement by country and organization through the technological competitiveness evaluation of patents and papers of the water separation membrane. Also, we evaluated the results from membrane research for waste water treatment, water purification treatment, seawater desalination, ion exchange process and present the future direction of research.


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