Waste Incineration and Heavy Metal Emission—Laboratory Tests

The main sources of environmental pollution with heavy (ecotoxic) metals include industry, including utility and municipal power engineering, but also waste incineration plants. Fuel shortages their constantly growing prices raise concerns that energy will be commonly obtained from outside installations intended for this purpose (i.e., plants). greatest concern stems the risk burning in low-power boilers—domestic boilers. Waste plants are equipped flue gas cleaning (FGD), boilers not. exhaust gases directly introduced into atmosphere, which results introduction air of, inter alia, toxic metals. Therefore, it is necessary to conduct activities aimed at retaining ecotoxic solid–slag residue. paper presents laboratory tests emission capacity Cd, Cu, Zn bound various chemical forms—nitrates (V), chlorides sulphates (VI). were carried out 1073 K, 1173 K 1273 K. It was found emissivity increased increasing temperature. This innovative as there no reports experiments pure forms metal salts. advantage type research lack influence other factors, apart temperature, on emissions. To check possibility reducing emissions, additives (bauxite, dolomite, V2O5) immobilized a solid residue tested. mechanism action each limit mobility different. use V2O5 new. kept residue, effect different effectiveness tested checked same temperature conditions, such as: rubber, sewage sludge SRF fuel waste. depended waste, furnace If additive effectively retained metals, then amounts ashes higher by several dozen percent relation amount remaining after without additives. experiment open factors (except temperature) its reduction. next step verify effects real conditions.