System Identification I

Remediation techniques for heavy metal-contaminated soils: Principles and applicability

The fifth edition of "Numerical Methods for Engineers" continues its tradition of excellence. Instructors love this text because it is a comprehensive text that is easy to teach from. Students love it because it is written for them--with great pedagogy and clear explanations and examples throughout. The text features a broad array of applications, including all engineering disciplines. The revision retains the successful pedagogy of the prior editions. Chapra and Canale's unique approach opens each part of the text with sections called Motivation, Mathematical Background, and Orientation, preparing the student for what is to come in a motivating and engaging manner. Each part closes with an Epilogue containing sections called Trade-Offs, Important Relationships and Formulas, and Advanced Methods and Additional References. Much more than a summary, the Epilogue deepens understanding of what has been learned and provides a peek into more advanced methods. Approximately 80% of the end-of-chapter problems are revised or new to this edition. The expanded breadth of engineering disciplines covered is especially evident in the problems, which now cover such areas as biotechnology and biomedical engineering. Users will find use of software packages, specifically MATLAB and Excel with VBA. This includes material on developing MATLAB m-files and VBA macros.

Numerical methods for engineers

A modified Langmuir-Freundlich isotherm model for simulating pH-dependent adsorption effects.

A review on techniques to enhance electrochemical remediation of contaminated soils

The possibility of using granulated blast-furnace slag (GBFS), furnace bottom ash (FBA), and their combination as fine aggregates in concrete was studied by performing experiments These materials were used without applying any preprocesses such as sieving and grinding The compressive, flexural, and split tensile strengths of concretes with natural sand replaced with GBFS, FBA, and GBFS plus FBA at 10, 20, 30, 40, and 50% were examined at a fixed water-cement ratio (w/c) The percentages represent the replacement percentage of fine aggregate by GBFS, FBA, or their combination and were evaluated depending on weight basis Also, microstructure and water absorption capacity of concrete were researched Test results showed that concrete strength decreases with increasing replacement ratio with respect to reference concrete In addition, FBA decreases the strength of concrete more than GBFS In particular, the strength of concrete was detrimentally affected when the replacement ratio was beyond 40% The microstructure studies showed that different pore structures were formed in the concrete depending on the replacement material, that is, GBFS or FBA It is concluded that the main reason for the strength reduction in new concrete is the formation of a porous concrete structure Moreover, an increase trend in water absorption capacity was observed for both replacement materials

Properties of Concrete Containing Nonground Ash and Slag As Fine Aggregate

Assessing effect of electrode configuration on the efficiency of electrokinetic remediation by sequential extraction analysis.

https://openaccess.iyte.edu.tr/bitstream/11147/5627/1/5627.pdf

Prediction of the bottom ash formed in a coal-fired power plant using artificial neural networks

Manganese was removed from naturally polluted river sediment by applying an electrokinetic remediation technique. The sediment was alkaline and had 20% clay, which was mainly illite. The electrokinetic remediation experiments were performed by controlling pHs in the electrode cells and reverse electroosmotic flows were observed, i.e., water moved from cathode towards anode. Manganese accumulated in areas closer to cathode, however, other metals, such as copper, zinc and lead were mostly observed in the middle section of the sediment. As a result of reverse electroosmotic flow, the removal efficiencies of metals were low and the highest removal efficiencies of manganese, copper and lead, were evaluated as 18%, 20% and 12%, respectively. Almost no removal of zinc was observed in all electrokinetic remediation experiments.

Ayten Genc

Papers

Properties of Concrete Containing Nonground Ash and Slag As Fine Aggregate

Assessing effect of electrode configuration on the efficiency of electrokinetic remediation by sequential extraction analysis.

Prediction of the bottom ash formed in a coal-fired power plant using artificial neural networks

Electrokinetic Removal of Manganese from River Sediment

Sorption of acid dyes from aqueous solution by using non-ground ash and slag