单项选择题
Which of the following methods can not remove the non-separable emulsified oil in bilge water?（）
A.gravity separation B.use of adsorbents C.use of flocculents D.use of chemical addition
单项选择题 Which of the following methods might favor oil emulsion in bilge water?（）
单项选择题 What’s the advantage of oily water separator that meets the requirement of MEPC 60(33) over MEPC 107(49)?（）
单项选择题 Which of the following methods might be used as the treatment on emulsified oil?（）
