Recycled materials such as reclaimed asphalt pavement and recycled asphalt shingles are commonly used with new pavement to cut costs. However, the recycled materials tend to become brittle faster, cracking and aging more ...

Several options for dewatering fine coal and refuse are available to coal preparation plants to recover the coal material for reuse. However, cost-effective dewatering continues to be a technical and economic barrier to ...

Oil spills have been reduced drastically since the 1970s (from 200 thousand tonnes to 7,000 tonnes) with advancements in the shipping industry and improvements in equipment, safety, and new policies and regulations. Even ...