Facilitated Transport of Cr(VI) through a Supported Liquid Membrane with a Carrier

• 영문명: Facilitated Transport of Cr(VI) through a Supported Liquid Membrane with a Carrier
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Park SangWook Lee JaeWook Kim SungSoo Choi ByoungSik
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제20권 제2호, 154~164쪽, 전체 11쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2003.06.30

영문 초록

This paper has applied a simple model to the mass transfer mechanism of Cr(VI) with crownether in a batch-type, supported liquid membrane module. Concentration at pH 3 are as follows : 0.012 kmol/m^3{le}18-crown-6{le}0.036 kmol/m^3 and 20 g/m^3{le} Cr(VI){le}500 g/m^3. The measured values of forward- and backward-reaction rate constants between Cr(VI) and 18-crown-6 were used to simulate the model with the mass conservation equation and associated boundary conditions. Comparison between the experimental and simulated facilitated factor of Cr(VI) transport led to classification of reaction regions.

키워드

facilitated transport immobilized liquid membrane Cr(VI) 18-crown-6 mass transfer coefficient