Syngeneity of metallic elements in biomass and its impact on the adsorptive properties of biomass-derived biochar

Edita Baltrėnaitė, P. Baltrėnas, L. Usevičiūtė, E. Marčiulaitienė and J. Titova

Institute of Environmental Protection, Vilnius Gediminas Technical University, Lithuania

edita.baltrenaite@vgtu.lt

Despite considerable reduction in hydrologic and atmospheric emissions, the consumption of metallic elements (MEs) is increasing and, therefore, their amount in the products used and in the waste streams is also growing. Therefore, the level of the environmental pollution of MEs and their bioaccumulation in the living matter, have increased. This is a new syngenetic mechanism of MEs penetration into biomass. The increase in the amount of MEs in biomass and its products, which can be used for decreasing the level of pollution, causes the changes in their properties.

The growing demand for organic products in the market promotes their use in various fields. One of such products is biochar. Among the innovative environmental applications, biochar has the potential as an adsorbent for retaining contaminants in environmental engineering and agrotechnical systems. Natural lignocellulosic and biochar composition variations would lead to a new field of application of biochar and reduce resources for biochar modifications. The aim of this study was to determine influence of syngenetic MEs on the adsorptive properties and adsorption performance of lignocellulosic biochar. Evaluating biochar as a potential adsorbent of inorganic pollutants, its valuable adsorbing properties and the influence of syngenetic MEs on their strengthening will be discussed.

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