SLUDGE TREATMENT METHOD AND EJECTOR

摘要

PROBLEM TO BE SOLVED: To promote the solubilization of sludge to be subjected to volume reduction treatment while assuring the flowability of the sludge in an ejector in implanting ozone gas to the sludge by using the ejector. SOLUTION: The ozone gas of 120 to 250 g/m<3> N in ozone concentration is used. The inner diameter of a throat section of the ejector is selected in accordance with the flow rate of the sludge in such a manner that the liquid flow velocity in the throat section attains 14 to 20 m/s.