A clarifier is a type of secondary treatment equipment used in wastewater treatment plants to remove suspended solids and other contaminants from wastewater. It is essentially a settling tank that allows heavier solids to settle to the bottom of the tank while lighter solids rise to the surface. Once the solids are separated, they are removed from the tank through a scraper or other mechanism.
Clarifiers are used in many different types of wastewater treatment plants, including municipal plants, industrial plants, and agricultural facilities. They are often used in combination with other treatment processes, such as biological treatment, to achieve the desired level of wastewater treatment.
There are several types of clarifiers available, including circular, rectangular, and inclined plate clarifiers. Each type has its own advantages and disadvantages, and the selection of the appropriate type of clarifier depends on several factors, including the volume and type of wastewater being treated, space constraints, and operating costs.
Overall, clarifiers play a critical role in secondary treatment processes and are an essential piece of equipment in many wastewater treatment plants.