지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 819 - 829 (11page)
이용수
초록· 키워드
오류제보하기
Reverse osmosis (RO) is the main process of current industrial desalination, and its performance is affected by the quality of water source. Natural water contains a certain level of silica, which is originated from metal silicate in the earth crust. Due to its complexity, silica fouling is difficult to control, which often causes less efficient design of RO system for safe operation. In the present work, we review the current state of silica treatment technology in RO desalination. Silica chemistry is investigated in standpoint of the scale formation mechanism among multiple forms of silica species and its synergistic interaction with other foulants such as organic matter. Then, pretreatment methods to remove silica in the RO feed water are outlined. They include softening/coagulation, seed precipitation/aggregation, tight ultrafiltration, ion exchange, adsorbents media, and electro coagulation. We finally highlight the mitigation of RO fouling under silica rich conditions, whose concept can be implemented in different ways of antiscalant dosing, high/low pH operation, and intermediate softening of the RO concentrate, respectively. This review will provide comprehensive information and insight about the optimal operation of industrial RO susceptible to silica fouling.
목차
ABSTRACT
1. Introduction
2. Material and Methods
3. Pretreatment for Silica Removal
4. RO Operation Under High Silica Concentration
5. Summary and Conclusions
References
참고문헌 (76)
참고문헌 신청
Al-Rehaili AM. Comparative chemical clarification for silica removal from RO groundwater feed. Desalination 2003;159: 21-31.
Gorzalski AS, O Coronell. Fouling of nanofiltration membranes in full-and bench-scale systems treating groundwater containing silica. J. Membr. Sci. 2014;468:349-359.
Sheikholeslami R, Bright J. Silica and metals removal by pretreatment to prevent fouling of reverse osmosis membranes. Desalination 2002;143:255-267.
Neofotistou E, KD Demadis. Use of antiscalants for mitigation of silica (SiO2) fouling and deposition: fundamentals and applications in desalination systems. Desalination 2004;167:257-272.
Ning RY. Discussion of silica speciation, fouling, control and maximum reduction. Desalination 2003;151:67-73.
Gorzalski AS, O Coronell. Fouling of nanofiltration membranes in full-and bench-scale systems treating groundwater containing silica. J. Membr. Sci. 2014;468:349-359.
Sheikholeslami R, Bright J. Silica and metals removal by pretreatment to prevent fouling of reverse osmosis membranes. Desalination 2002;143:255-267.
Neofotistou E, KD Demadis. Use of antiscalants for mitigation of silica (SiO2) fouling and deposition: fundamentals and applications in desalination systems. Desalination 2004;167:257-272.
Ning RY. Discussion of silica speciation, fouling, control and maximum reduction. Desalination 2003;151:67-73.
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UCI(KEPA) : I410-ECN-0101-2020-539-000545802