Korean Journal of Chemical Engineering
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Continuous biosorption of U(VI) and Fe(II) using Cystoseira indica biomass packed bed column: Breakthrough curves studies in single, binary and multi-component systems
Korean Journal of Chemical Engineering - Tập 33 - Trang 2205-2214 - 2016
Ca-pretreated Cystoseira indica algae was used as a biosorbent for the biosorption of U(VI) and Fe(II) ions in single, binary and multi-component systems by using a packed bed column. Experiments were conducted to study the effect of important design parameters such as bed height and flow rate. FTIR and XRF analyses and pH and Ca2+ ion concentration recordings showed that the biosorption of U(VI) ...... hiện toàn bộ
Simultaneous removal of organic and inorganic pollutants in tannery wastewater using electrocoagulation technique
Korean Journal of Chemical Engineering - Tập 25 - Trang 703-709 - 2008
Tannery wastewater can cause severe environmental problems related to its high chemical oxygen demand, high biochemical oxygen demand, high total suspended solids, high oil and grease contents together with the elevated chromium concentration and objectionable color. The one-step electrocoagulation process was carried out to simultaneously remove chromium and various pollutants from tannery wastew...... hiện toàn bộ
Inhibition of melanogenesis and melanin transportation by Gynostemma pentaphyllum
Korean Journal of Chemical Engineering - Tập 24 Số 4 - Trang 655-659 - 2007
A comparison on predictive models of gas explosions
Korean Journal of Chemical Engineering - Tập 26 - Trang 313-323 - 2009
A comparison on existing models of gas explosion predictions has been done. The advantages and drawbacks, and the possibilities and limitations of the different empirical, phenomenological, and computational fluid dynamics assessment models of gas explosions were discussed. Particular attention was paid to CFD models.
Process identification for an SOPDT model using rectangular pulse input
Korean Journal of Chemical Engineering - Tập 18 - Trang 586-592 - 2001
A new method of process identification for a second-order-plus-dead-time model is proposed and tested with two example systems. In the activation of the example processes for the identification, a rectangular pulse input is applied to open loop systems. The model parameters are estimated by minimizing sum of modeling errors with the least squares method. The estimation performance is examined by c...... hiện toàn bộ
Valorization of chitosan into levulinic acid by hydrothermal catalytic conversion with methanesulfonic acid
Korean Journal of Chemical Engineering - Tập 35 - Trang 1290-1296 - 2018
As a potential renewable aquatic resource, chitosan is the second most abundant biopolymer. Methanesulfonic acid is a catalyst that is strongly acidic and biodegradable. We used chitosan and methanesulfonic acid to produce platform chemicals via an acid-catalyzed hydrothermal reaction. In the methanesulfonic acid-catalyzed hydrothermal conversion of chitosan, an optimal levulinic acid yield of 28....... hiện toàn bộ
A novel approach to measuring fluid saturation using X-ray computed tomography
Korean Journal of Chemical Engineering - Tập 40 - Trang 2708-2715 - 2023
Digital rock analysis using X-ray computer tomography (CT scan) is an ongoing topic for studying the porous media in geothermal, natural gas, and petroleum industries. This study provides a novel approach to calculating fluid saturation in low permeability cores utilizing X-ray computed tomography. In the present study, synthetic low permeability cores were used to analyze two-phase saturation at ...... hiện toàn bộ
Silver nanoparticle loaded silica adsorbent for wastewater treatment
Korean Journal of Chemical Engineering - Tập 34 Số 6 - Trang 1801-1812 - 2017
Biosorption mechanism of Zn2+ from aqueous solution by spent substrates of pleurotus ostreatus
Korean Journal of Chemical Engineering - - 2014
Study on the performance of different discharging devices of a continuous production system
Korean Journal of Chemical Engineering - Tập 39 - Trang 876-886 - 2022
Based on the developed continuous production system of sodium phenol carboxylation reaction, several types of discharging devices are proposed, which are suitable for the case where the transported particles are not easy to maintain a stable state in the transported fluid. Numerical simulations of the gas-solid two-phase flow characteristics and particle distribution were performed with DPM, and t...... hiện toàn bộ
Tổng số: 4,873
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