Biofiltration as a treatment technology in water and wastewater purification. The arrow indicates the direction of water flow. Biofilters contain filter medium grains (e.g., sand, granular activated ...

The lateral-flow sand filter (LFSF) is an alternative system for household septic-tank effluent treatment that utilizes periodic or continuous surface discharge. The purpose of this study was to ...

A study by the Indian Institute of Technology Bombay (IIT Bombay) on biofilters has revealed that partially treated wastewater from refineries already carry bacteria that can remove the organic ...