A skimmer is an important component used in the secondary treatment of wastewater. Its primary function is to remove floating substances such as oil, grease, and scum from the surface of the water. This is done by using a motorized rotating drum that is partially submerged in the water. As the drum rotates, the floating material adheres to the surface of the drum, which is then scraped off and collected for proper disposal.
There are different types of skimmers available in the market, with variations in their design, construction, and functionality. For instance, some skimmers use a belt system instead of a rotating drum to collect the floating material, while others use a suction system that draws the floating material into a collection tank. Some skimmers may also incorporate advanced features such as sensors, alarms, and automated controls for efficient and safe operation.
Skimmers are widely used in various industries such as oil and gas, chemical, food processing, and wastewater treatment plants. In wastewater treatment plants, skimmers are typically used in the secondary treatment process, which follows primary treatment processes such as screening, grit removal, and sedimentation. The secondary treatment process involves the biological treatment of wastewater to remove organic pollutants and suspended solids, and the skimmer plays a vital role in ensuring the effective operation of the process.
Overall, the skimmer is an essential component in the secondary treatment of wastewater, as it helps to maintain the efficiency and effectiveness of the process by removing floating substances from the water surface.