EXPERIMENTAL AND MODELING ADSORPTION OF CS+ ON BENTONITE AND NANOBENTONITE
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL, ENVIRONMENTAL AND BIO-TECHNOLOGY
Author(s): B.P. TAVILDARI, , M. ABDOLAHI
Abstract: The adsorption properties of local bentonite (SemnanIran) and nanobentonite prepared from this bentonite towards Cs+adsorption, were investigated by batch equilibration. The influence of equilibration time, sorption isotherms, kinetic sorption, solution pH and presence of EDTA and NaCl on these properties was studied and discussed. Kinetic data were found to be well fitted with pseudo-second order kinetic model. Cs+ is preferably adsorbed by bentonite and nanobentonite. The Freundlich isotherm model has the best fit with experimental data than other sorption isotherm models. The maximum sorption of Cs+, representing the highest negative charge density on the surface of the adsorbentwas observed at pH 8, where the negative charge density on the surface of the absorbents was the highest. The lowest observed sorption was observed at pH 12.30 for bentonite. Presence of EDTA and NaCldecreased the amount of Cs+ sorptio
- Publication Date: 09-Mar-2014
- DOI: 10.15224/978-1-63248-001-9-121
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ENHANCEMENT EMBEDDED SYSTEM FOR CONTROL AND MONITORING DESIGN UNDERWATER ROBOT
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN ELECTRONICS AND ELECTRICAL TECHNOLOGY
Author(s): J. SRINONCHAT
Abstract: An underwater robot is individually designed for a specific task such as ocean mapping, geothermal under ocean, tracking pipe line and monitoring environments. This article presents an enhancement embedded system for control and monitoring design underwater robot which it can be the another choice to design the underwater robot . The electronic circuits are design and interface with many sensors for control and measure the water environment such as oxygen sensor. The major controller is PIC16F877A and PIC18F443 and combines with multiple sensors. The antenna video wireless is applied as the vision controller which used frequency 2.4 GHz to transmit and receive video data. The experiment results show that it can transfer the video of underwater environment and monitoring the oxygen and temperature of water as design. Also the embedded system is more convenient. It can further develop and make it to the large scale.
- Publication Date: 05-Jan-2014
- DOI: 10.15224/978-981-07-8859-9-54
- Views: 0
- Downloads: 0