Special Seminar – September 23, 2022

Special Seminar September 23

We are excited to welcome Marjan Kalmakhanova from Kazakhstan and Helder Gomes from Portugal as they visit the University of Nebraska - Lincoln! While they're here, join us for a special seminar to learn about their research.

Where: Nebraska Innovation Campus Board Room, Suite 2215

When: September 23, 2022 from 1:00-3:00 p.m.



Marjan Kalmakhanova

Marjan Kalmakhanova

Marjan Kalmakhanova is an Associate Professor in the Department of Chemistry and Chemical Technology at M.Kh. Dulaty Taraz Regional University, Kazakhstan. She will be presenting on “New materials based on natural resources for the removal of pollutants from wastewater by treatment with oxidation processes”.

About Marjan Kalmakhanova

Marjan Kalmakhanova is associate professor at the Department of Chemistry and Chemical Technology at M.Kh. Dulaty Taraz Regional University, Kazakhstan. She has a long-term involvement with environmental science research activities, more specifically focused in the synthesis and characterization of adsorbents and heterogeneous catalysts based on natural clays to solve environmental problems in liquid phase. During her PhD studies, in 2017, Marjan performed a research internship at Bragança Polytechnic Institute, Portugal, where gathered experimental experience on a large range of water analytical methods and water treatment technologies. In her career path she was awarded several prizes and recognitions, as best university teacher in 2022. From her research work resulted 20 papers in national and international journals, 17 papers in conference proceedings and 2 patents. In 2021, with collaboration of Nebraska University (Lincoln, United States), won an American Councils U.S.-Kazakhstan University Partnerships Grant with title “Science with a Purpose: Improving Environmental Science in Kazakhstani Universities”. More recently, in April 2022, she got funding for the project “Identification and treatment of contaminants of emerging concern (CEC) in effluents of urban wastewater facilities in Kazakhstan”, from Minister of Education and Science of the Republic of Kazakstan, funding young researchers, involving the international partners of Bragança Polytechnic Institute and Nebraska University.

Seminar Abstract

The constant development of technological processes aggravates the problem of pollution, due to a significant change in the composition of effluents that makes necessary new (and/or improved) treatment methods and catalytic materials. The use of natural clays in the synthesis of low cost pillared clays for application as catalysts in oxidation technologies for the treatment of wastewaters are relevant from an environmental and sustainable point of view. In this regard, there is growing scientific interest in the creation of new treatment solutions and inexpensive materials (adsorbents and/or catalysts) based on clays. Their use as adsorbents or catalysts for the treatment of wastewater of the chemical industry is leading to cheapest and eco-friendly technical solutions.

In this seminar will be presented results of works on development of catalysts and adsorbents by modification of natural clays, aimed to increase their catalytic activity for the treatment of organic pollutants by catalytic wet peroxide oxidation (CWPO), and their porosity for adsorption of heavy metals. Will also be presented the running project from Minister of Education and Science of the Republic of Kazakhstan funding young researchers, involving the international partners of Bragança Polytechnic Institute, Portugal, and Nebraska University, Lincoln, United States, related with development of catalytic advanced oxidation processes coupled with polymer mixed-matrix membranes. Those membranes are particularly cost-advantageous when incorporating catalytic materials derived from natural clays and biomass waste carbon precursors. The study of domestic raw materials and natural resources to create fundamentally new highly efficient catalysts for membrane systems, and to increase efficiency of wastewater treatment, is of great theoretical and applied value.

Helder Gomes

Helder Gomes

Helder Gomes is the Coordinator Professor at the Polytechnic Institute of Bragança (IPB) and the Coordinator of the Topic ‘Process and Product Engineering’ at the Mountain Research Center (CIMO), Portugal. He will be presenting on “Turning Waste into Value: Materials for Environmental Applications”.

Seminar Abstract

The sustainable development of societies requires changes in the way we look resources nowadays. Currently, those resources are used to produce new products and discarded after its application, generating waste. Plastics are an example of such linear economic model, where fossil resources are transformed into plastics and then discarded many times after a single use, a great amount ending up in dumping wastes. The shift of paradigm from a linear economic model to a circular economic model, where wastes are regarded as resources itself to produce new products of high-added value to societies is thus mandatory.

In this talk several examples will be given based on running projects at the Mountain Research Centre (CIMO) of the Polytechnic Institute of Bragança (IPB), where wastes are converted into value. Compost resulting from the organic fraction of municipal solid waste, non-recycled plastic solid waste and agro-industrial wastes can be upcycled into materials, such as biochars, activated carbons and carbon nanotubes. By proper tunning of texture and surface chemistry, materials are produced with adequate properties to be applied as adsorbents and as catalysts in the development of treatment solutions for water and wastewater reuse, contributing to tackle another important challenge, the growing demand of clean water.

About Helder Gomes

Helder Gomes is Coordinator Professor at the Polytechnic Institute of Bragança (IPB), Portugal, and Coordinator of the Topic "Process and Product Engineering" of the Mountain Research Center (CIMO). He graduated in Chemical Engineering from the Faculty of Engineering of the University of Porto (FEUP), Portugal in 1997. In 2002, and also at FEUP, he obtained the PhD degree in Chemical Engineering in the area of Heterogeneous Catalysis applied to Wastewater Treatment. He joined the Department of Chemical and Biological Technology of IPB, in 2001, being Chair of his Department since 2019. Between 2016 and 2018 he was President of the Catalysis and Porous Materials Division of the Portuguese Chemical Society and, since 2018, has been Vice-President of the Iberoamerican Federation of Catalysis Societies. Its main research interests focus on the synthesis and characterization of heterogeneous carbon-based materials for environmental, biomedical and bioenergy applications, the valorization of industrial and agro-industrial wastes into materials and fuels, and the development of water/wastewater treatment solutions based on advanced oxidation processes. He has published more than 85 ISI articles and more than 250 communications at international/national congresses. Participated in more than 35 projects and networks, 9 as coordinator. Acts as project evaluator in several national and international agencies. ORCID: http://orcid.org//0000-0001-6898-2408