Day 1 :
Keynote Forum
Dr. Muhammad Tahir Saddique
PhD supervisor at the National Textile University
Keynote: Comparison of different methods for the PZC determination of chitosan based novel biosorbents in textile waste water
Biography:
Dr. Muhammad Tahir Saddique is Assistant Professor of Chemistry and HEC approved PhD supervisor at the National Textile University, Faisalabad - Pakistan. He has completed Ph.D from National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan. His main research areas include; Ion exchange, adsorption, surface charge, kinetics, thermodynamics, characterization, synthesis of nano particles and textile chemistry. In last five years (2013 – 2018) he has published 06 research papers in peer reviewed international science journals of, ACS, Elsevier, Springer and the journal of chemical society of Pakistan. He has the Impact Factor of 52.254 (ISI Report 2017). His research work has so for been cited in 351 research papers (ISI web of knowledge). He has presented his research work at several national and international conferences throughout the last six years. He has been honored with the Research Productivity Award for the year 2010-11 in “G” category, 2011-12 in “G” category & 2012 -13 in “F” category by the Pakistan Council of Science & Technology (PCST) Islamabad, Pakistan
Abstract:
We used salt addition, mass and potentiometric fast titration to determine point of zero charge of chitosan, (chitosan + cellulose and chitosan + Algenite) biosorbents in presence of textile waste water. Comprehensive potentiometric experiments were conducted to find the surface acidity constants and the concentration of surface charged groups on the biosorbents. The PZC of chitosan based novel biosorbents is comparable in magnitude to the one obtained by salt addition and mass titration techniques at 303 K. However the slight differences in the PZC values obtained by different methods diminish at higher temperatures. We observed the fair agreement between experimental and calculated values of PZC. The influence of ionic strength and temperature on the acidity constant of biosorbents were investigated. The intrinsic acidity constants (pK1 and pK2) were found to decrease with increase in temperature, which shows endothermic nature of both biosorbent surfaces deprotonation reactions. The PZC and the concentration of surface groups were increased whre as concentration of pure biosorbent material decreased with decrease in temperature of medium. The changes in entropy (∆S) and enthalpy (∆H) connected with the surfaces deprotonation of the biosorbent composite materials/ electrolyte interface were measured. The loss in entropy indicated that potential determining ions were less hydrated at the interfacial regions. Themodynamic parameters showed that the positive values of enthalpy were the driving force for the depronation of the both biosorbents.
- Waste Water Treatment
Location: Vancouver, British Columbia, Canada
Session Introduction
Menbere Kinfe Habtie
BahirDare University Enineering Faculty , Adisabeba, Ethiopia
Title: Reutilization of avocado seed as beneficial product in leather processing after some extraction
Biography:
Menbere Kinfe Habtie has completed my BSC Degree at the age of 22 years from 2001 to 2006 I have an experience in company of leather sector as a consultant in environemental issue for this I have taken a training in Germany about environmental standards and what thier expriance looks like in protacting environenment in adition my job is consulting the company to produce quality product by minimazing ther waste
Abstract:
- Analytical Chemistry
Location: Vancouver, British Columbia, Canada
Session Introduction
Haroldo de Araújo Ponte
Federal University of Parana, BR
Title: MODELING AND EXPERIMENTAL VALIDATION OF A POROUS BED ELECTROCHEMICAL REACTOR FOR CONVERTION OF HYDROGEN SULPHIDE CONTAMINATED EFFLUENTS INTO SULFATE AND THIOSULPHATE
Biography:
Graduated in Mechanic Engineering at the Federal University of Ceará UFC in 1985, Master degree in 1990 and DSc in 1994 in Materials Science and Engineering at the Federal University of São Carlos, SP/Brazil (UFSCar). Became associated professor at the Chemical Engineering Department at Federal University of Paraná in 1995 and Full Professor since 2016. Coordinator of the Surfaces Electrochemistry and Corrosion Laboratory – LESC and of the Environmental Technology Laboratory - LTA
Abstract:
This study carried out on the modeling, mathematical (by reaction mechanisms) and experimental (empirical modeling) of an electrochemical reactor of porous bed for convertion of hydrogen sulphide into sulfates and thiosulphates, products used in various industrial processes. The applied mathematical modeling of electrochemical phenomena theory consists of a set of partial differential equations that essentially describes the transport of the species in solution, the electric potential distribution and the charge transfer kinetics at the electrode / electrolyte interface. The solution of the equations, through appropriate numerical methods (finite element method), provides theoretical relations between the quantities of interest (current, potential, concentration, among others), which allows the quantitative analysis of the experiments. The experimental modeling cover the optimization applied to the problems of parameter estimation and discrimination of the empirical model. The study is composed of a theoretical stage, referred to above and an experimental stage. In the experimental stage it was carried out tests in a bench electrochemical reactor, with perpendicular configuration and porous bed composed of reticulated vitreous carbon. As a result, sulfide, sulphate and thiosulphate concentration profiles were obtained, and current and applied potential profiles. Thus, the performance of the electrochemical reactor for different hydrodynamic conditions and applied electric potential was evaluated.
- Electrochemistry
Location: Vancouver, British Columbia, Canada
Session Introduction
Tamaki Nakano
Institute for Catalysis, Hokkaido University, N21W10, Kita-ku, Sapporo 0010021, Japan
Title: Chiral Polymers Emitting Efficient Circularly Polarized Light as OLED Materials
Biography:
Tamaki Nakano received his BSc (1986), MSc (1988), and PhD (1991) degrees from Osaka University, Japan. He joined Nagoya University as an Assistant Professor (Prof. Yoshio Okamoto’s group) in 1990 and was promoted to an Associate Professor in 1998. During his appointment at Nagoya University, he also served as a visiting scientist at Cornell University (host: Prof. DotseviY. Sogah, 1993–1994). In 1999, hemoved to Nara Institute of Science and Technology (NAIST) as an Associate Professor. He was appointed as a Professor of Hokkaido University in 2006 and is currently supervising his research group at Institute for Catalysis
Abstract:
- Medicinal Chemistry