Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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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
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Abstract

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.

지구온난화, 환경오염, 가뭄 등의 재해현상으로 인한 물 부족 현상이 진행됨에 따라 수자원의 활용성을 증가시키기 위한 원천기술의 개발과 연구들이 진행되고 있다. 그중 수처리 분리막 기술은 기존 물리화학적 및 생물학적 공정보다 수질 개선 효과가 우수하고 약품 사용이 배제된 환경친화적인 공정이다. 수처리 분리막은 오폐수처리, 정수처리, 해수담수처리, 이온교환 공정, 초순수 제조, 유기용매 분리 등 다양한 분야에 적용되며 분리막을 이용한 수처리 기술은 점차 응용 범위가 넓어지고 있는 추세이다. 수처리 분리막의 핵심 기술은 분리성능을 조절하기 위한 기공 사이즈를 조절하는 것으로써 더 나은 성능을 나타내는 분리막을 개발하기 위한 연구가 활발히 진행되고 있다. 본 총설에서는 수처리용 분리막의 특허 및 논문의 기술경쟁력 평가를 통하여 국가별, 기관별 발표 빈도수를 정리하였으며, 오폐수처리용 분리막, 정수처리용 분리막, 해수담수화용 분리막, 그리고 이온교환공정용 분리막에 대한 평가를 진행하고, 향후 연구 방향에 대하여 제시해 보고자 한다.

Keywords

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