Pore-size Effect on Urea Conversion Kinetics via Enzymes Immobilized on Porous Membranes
Jin-Won Park *
Department of Chemical and Biomolecular Engineering, College of Energy and Biotechnology, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea.
*Author to whom correspondence should be addressed.
Abstract
Urease was covalently immobilized on the surface of the porous membranes with 20 and 100 nm pores. The cross-sectional areas of the membranes were identical for both sizes. The smaller pore-size in the membrane prohibited the conversion from urea to bicarbonate due to the locally uneven distribution of materials. The results of this study seem to be useful in designing a reactor for recycling wastewater generated in the semiconductor process.
Keywords: Ecotypes of Anthephora, Urea, iations in mineral reqire, enzyme immobilization, porous membranes, pore-size, conversion kinetics