'MULTI-COLUMN SAND FILTER AND A METHOD THEREOF'

摘要

The present invention provides a novel sand filtration system for treatment of wastewater and method thereof. The sand filter includes multi-columns thus allowing procurement of different quality water at the same time. The desired quality water from sand filter can be obtained at any preliminary stage of operation. The multi-column filtration set up has the ability to reduce the turbidity of wastewater below the minimum standard prescribed by WHO i.e. one NTU (that is essential for groundwater recharging). The sand filtration unit serves as an efficient and viable means of treating wastewater. Additionally, the multi-column sand filter can be cleaned without disrupting its operation in a column-wise manner.