Ball-Milled Biochar and Its Effect on Remediation of Soil from Industrial Area

Extended Abstract The increasing soil pollution with heavy metals requires new and sustainable remediation solutions. Biochar, an environmentally friendly carbon material derived from various biomasses, has recently been used as a soil amendment to immobilize heavy metals in polluted soils. Despite the recognized benefits of biochar, its adsorption and immobilization efficiency still needs to be improved. Recently, ball milling has been considered as an environmentally friendly technology for biochar modification. Mechanical grinding of biochar into fine micro-and nano-sized particles can improve the physical and chemical properties of biochar in terms of metal adsorption [1, 2]. Therefore, testing of ball-milled biochar for metal immobilization in polluted soils is crucial for the development of nanoremediation. The objective of this work was to compare selected properties of pristine and ball-milled biochars and their effect on selected soil properties and leachability of metals from soil polluted by the smelting industry.