Concerning the incinerator’s operation, which of the following is not correct?（）

A.Scavenging time should be more 30 seconds before igniting

B.The temperature of sludge tank is 80~100℃

C.First igniting the incinerator with diesel oil, when the temperature of health is about 600℃, the sludge oil drawn in

D.The ash can be dumped into sea when the distance is more than 3 miles from land