scouring waste

基本解释

The key of wool scouring waste water disposal is the recovery of wool grease to the greatest extent.
处理好洗毛污水的关键是最大限度地提净污水中的羊毛脂。
The waste liquor from this scouring step was agitated with 0.15% of its weight of colloidal bentonite.
该洗涤工序排出的废水，同其重量的0．15％的胶性皂土混合。
Learning first-hand of the soaring demand for waste paper that could be recycled into packaging material, she opened a business in Hong Kong in 1985, scouring dumps for raw material.
她直接地了解到市场上对废纸重新回收制成包装材料的需求高涨，遂于1985年在香港开办了一家企业，从垃圾场中搜寻原材料。

So this is how we can reduce spending: by scouring the budget for every dime of waste and inefficiency, by reforming government spending, and by making modest adjustments to Medicare and Medicaid.
WHITEHOUSE: President Obama on Economic Growth and Deficit Reduction