slop oil

基本解释

Accumulation of the leaked slop oil and waste water in the trench and the sewage well is another reason for higher COD in waste water.
泄漏的废油和污水，汇集在地沟和污水井中，是废水COD高的又一主要原因，。
2008.secco.com.cn
And then lately, people are very concerned about cooking oil, because thousands of people have been found [refining] cooking oil from restaurant slop.
最近，人们对食用油也很担忧，大量的餐馆被发现在使用“地沟油”。
Gas floating pond replaced oil interceptor. The removal rate of oil slop in output water has increased to 97.6%, and that of floating particles increased to 91.7%.
采用两级罐除油，隔油池改气浮池，出水污油去除率提高到97 6 % ，悬浮物去除率提高到91 7% ；