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논문 기본 정보

자료유형
학술저널
저자정보
Ki-Bum Park (Gwangju Institute of Science and Technology) Changkyoo Choi (Gwangju Institute of Science and Technology) Hye-Weon Yu (Gwangju Institute of Science and Technology) So-Ryong Chae (University of Cincinnati) In S. Kim (Gwangju Institute of Science and Technology)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제23권 제4호
발행연도
2018.12
수록면
474 - 484 (11page)

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초록· 키워드

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The cleaning efficiency of reverse osmosis (RO) membranes inevitably fouled by organic foulants depends upon both chemical (type of cleaning agent, concentration of cleaning solution) and physical (cleaning time, flowrate, temperature) parameters. In attempting to determine the optimal procedures for chemical cleaning organic-fouled RO membranes, the design of experiments concept was employed to evaluate key factors and to predict the flux recovery rate (FRR) after chemical cleaning. From experimental results and based on the predicted FRR of cleaning obtained using the Central Composite Design of Minitab 17, a modified regression model equation was established to explain the chemical cleaning efficiency; the resultant regression coefficient (R²) and adjusted R² were 83.95% and 76.82%, respectively. Then, using the optimized conditions of chemical cleaning derived from the response optimizer tool (cleaning with 0.68 wt% disodium ethylenediaminetetraacetic acid for 20 min at 20℃ with a flowrate of 409 mL/min), a flux recovery of 86.6% was expected. Overall, the results obtained by these experiments confirmed that the equation was adequate for predicting the chemical cleaning efficiency with regards to organic membrane fouling.

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ABSTRACT
1. Introduction
2. Experimental Methods
3. Results and Discussion
4. Conclusions and Summary
References

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UCI(KEPA) : I410-ECN-0101-2018-539-003101161