| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress and reduce the quantity of carbon monoxide gas remaining the incinerated waste gas in an incineration processing for waste gas and waste liquid containing organic substance. SOLUTION: An incineration processing method for waste liquid/waste gas is adapted such that an auxiliary fuel is combusted with a burner provided in an incinerator to form a high temperature gas region, and waste liquid/waste gas containing any organic substance are supplied to the high temperature gas region from a spray nozzle disposed around the burner for incineration processing. In the method, oxygen rich air is supplied to the high temperature gas region in the incinerator. Oxygen concentration of the oxygen enriched air is 22% by volume or more, and a high temperature heat production quantity of the waste liquid is of preferably 2,000 to 10,500 kJ/kg. Thus, by supplying the oxygen-enriched air there is ensured in-furnace gas residence time owing to the incineration temperature being changed to high temperature and owing to reduction of the total quantity of the combustion gas, whereby the quantity of carbon monoxide gas produced and left behind is reduced.</p> |
