The identification of the sorption properties of ash from arboreal biomass used to remove biogenic compounds and heavy metal ions from polluted water

The paper presents an exploratory study regarding the sorption capacity of the ash from arboreal biomass, generated by self: combustion in a thermoelectric power plant. Biomass is one of the most promising sources of renewable energy in natural and economic conditions in Poland. The fuel derived from forest areas and specific energy crops, is becoming more widely used due to legislative considerations and needs for sustainable management of natural resources. It creates an increasing amount of waste from a thermal conversion of biomass (combustion by-products) - mainly in the form of ash. Thermoelectric power plants are obliged to manage combustion bv-products. By-products of combustion are utilized, stored or managed depending on the nature of the applied fuel and the waste code, and also according to the regulations. Technologies concerning their economic application allow reducing the amount of.waste and thereby limiting their damage on the environment. The research deals with the ash from arboreal biomass collected from the thermoelectric power plant in Kielce. The research considers the possibility of its application in order to remove pollution from municipal wastewater and leachate from municipal landfills. The adsorption levels were determined using the analysis of kill concentration in solution before and after adding the ash. The ion concentration was examined by means of an atomic absorption spectrometer. The results and sorption properties of ash were evaluated within defined process parameters (pH, temperature, reaction time).