1. Felsvang, K. et al., US Patent 4,279,873, issued 21 July 1981.
2. Patent pending.
3. Dry scrubbing of hazardous waste incinerator flue gas by spray dryer absorption;Moller,1984
4. Joy/Niro control technology concepts for hazardous waste incinerators in Northern Europe;Donnelly,1986
5. Joy/Niro spray dryer acid gas removal system for hazardous waste and sewage sludge incineration;Donnelley,1987