Lubricated reciprocating compressors are equipped with oil traps and carbon filters in the discharge lines to capture oil carryover. The oil is usually mixed with water and in some cases contains toxic process gases. Therefore, they must be properly degassed and decanted. The oil can then be put into containers and taken to disposal sites either for incineration or for landfill. There is increased emphasis on recycle, and there are a number of companies that can reprocess the waste oils. It provides lubrication for the moving pistons either through an oil lubricated intake gas stream, or via an oil pump and injection of oil to the piston sleeve.