waste sludge

例句：

1. 1.The factory produces a lot of wastesludge every day.
   这个工厂每天产生大量的废物污泥。
2. 2. The waste sludgeneeds to be properly disposed of toprevent pollution.
   需要妥善处理废物污泥以防止污染。
3. 3. The company has been working on reducingthe amount of waste sludge itgenerates.
   该公司一直在努力减少产生的废物污泥量。