TY - JOUR N2 - The paper presents the preliminary study of n-butanol removal in the adsorption process. The main objective of the research was to asess whether and to what extent biochars produced from selected organic waste materials are suitable for odor removal. Biochars produced from dried sewage sludge and beekeeping waste were tested in the adsorption process. At first, raw materials were pyrolyzed and then modified with a 25% ZnCl2 solution or a 30% H2O2 solution. The adsorption process was conducted using a model gas – the European reference odorant – n-butanol. The output parameter was odor concentration Cod [ouE/m3]. Odor concentration Cod values were obtained using a dynamic olfactometry method on T08 olfactometer. The solid byproducts of pyrolysis of digested sewage sludge and beekeeping waste may be used as adsorbents for the removal of n-butanol in the adsorption process. Adsorption performance of biochar from sewage sludge is better than biochar from beekeeping waste. Additional modification with H2O2 or ZnCl2 increases the efficiency of the process, thus decreasing the required bed height for the elimination of odorant. The results of the studies confirm the findings of other authors that biochars derived from sewage sludge and other organic waste materials may be efficient sorbents in the removal of various substances from water or the air. Other biochars and methods of their activation should be tested. For practical reasons, the next stage of the research should be the determination of the adsorption front height and its migration rate. L1 - http://journals.pan.pl/Content/119725/PDF/Archives%20vol%2047_2pp20_28.pdf L2 - http://journals.pan.pl/Content/119725 PY - 2021 IS - No 2 EP - 28 DO - 10.24425/aep.2021.137275 KW - adsorption KW - pyrolysis KW - biochar KW - odor removal KW - organic wastes A1 - Piekarski, Jacek A1 - Dąbrowski, Tomasz A1 - Dąbrowski, Janusz A1 - Ignatowicz, Katarzyna PB - Polish Academy of Sciences VL - vol. 47 DA - 2021.06.23 T1 - Preliminary studies on odor removal in the adsorption process on biochars produced form sewage sludge and beekeeping waste SP - 20 UR - http://journals.pan.pl/dlibra/publication/edition/119725 T2 - Archives of Environmental Protection ER -