Removal of estrogens from waste water and drinking water with the help of a biological filter. Setting their sights high are the 15 Bielefeld students submitting this project to the 'international ...

Research Journal of the Water Pollution Control Federation, Vol. 62, No. 2 (Mar. - Apr., 1990), pp. 169-176 (8 pages) The biological aerated filter is an innovative technology that combines aerobic ...

Ottawa, Canada - September 24, 2008 -Microbiologically contaminated water plagues approximately 1.1 billion people in rural and peri-urban populations in developing countries. Roughly 2.2 million ...

Sustainable, biological filters called slow sand filters have been used to filter drinking water since the 1800s. They don't use any chemicals, create no waste and use very little energy. New research ...

This study systematically evaluated the potential of red rice extract as a biological ultraviolet (UV) filter and, for the first time, comprehensively validated its UV absorption characteristics, ...

Objective: Students will engineer a water filter based on observations of manta ray feeding filters, then test its effectiveness. Topics: Structure and function, adaptation, engineering and design ...