or water was sprayed over the fluidizing air to capture dioxins that are produced by the incineration of wastes containing chlorine compounds it was confirmed that up to 99 1 of the dioxin contents was thus removed the amount of water or water vapor as water added was in terms of the molar weight to the carbon amount in the combustibles 0 88 h 2 o c molar ratio the combustion temperatures were as given in table 1 the properties of the treated gas also shown in the table reflected favorable low pollution incineration table 1______________________________________ experiment with water added in accordance without water with the additionitem invention as usual______________________________________furnace outlet 1 68 1 62air ratio amount of water added 0 88 0 h sub 2 o sup mol c sup mol temperature inside 672 u00b0 c 898 u00b0 c the fluidized bedfreeboard temperature 930 u02dc 1000 u00b0 c 950 u02dc 990 u00b0 c retention time at ab 2 sec ab 2 sec or above 850 u00b0 c furnace outlet gascompositiono sub 2 8 49 8 02 co sub 2 12 37 12 8 co 45 ppm 25 ppmnox 69 ppm 72 ppmdioxins 60 ng nm sup 3 6500 ng nm sup 3______________________________________ furnace outlet air ratio quantity of actually supplied air theoretical combustion air quantity in fig2 is shown the second embodiment of the invention as applied to a stoker fired incinerator in the figure 21.