Used for the protection of mechanical parts such as pumps and valves and prevention of accumulation in pipes and channels oil and sand traps are used to remove sand, suspended solids and similar non-degradable substances in water. Oil and sand traps It works by utilizing the ability of suspended solids to settle in stagnant state. The sand passing through the treatment system is collected at the bottom of the basin and removed from the system with the help of pumps. Skimmers transfer the oil on the surface of the water to a funnel where the oil is removed and disposed of from the system.