Landfill ban is currently applied or planned in many developed countries. Small-scale waste-to-energy plants can help to avoid large collection areas and can be the only alternative to landfills in regions with low population density, border regions, or islands. Also, medical waste very often needs to be incinerated and produced flue gas still has to be treated, regardless of its volume. However, conventional flue gas treatment systems are very expensive when used in small-scale. A simplification of the flue gas treatment system is, therefore, necessary. Integrated solutions for the removal of several pollutants in one reactor decrease the capital costs of flue gas treatment systems. However, every such technology has its limits and compromises have to be made. An important factor is the\nchoice of sorbent for the removal of acid gases. The paper focuses on the suitability of sorbents (NaHCO3 and Ca(OH)2) for dry sorption of acid gases from flue gas from waste-to-energy at condition that allow simultaneous removal of multiple pollutants. Selected sorbent (NaHCO3) was used for experiments conducted with real flue gas to determine the influence of temperature and flue gas composition.