For the past decade or so, Non-Governmental Organizations (NGOs) have been distributing a water purification system based on a “bucket drip” technology using ceramic filter cartridges. These systems ...

Don’t like the idea formaldehyde and benzene creeping about your bedroom? Didn’t think so. But given our lax standards about the materials that can be used to build your house and stuff, it probably ...

This is a preview. Log in through your library . Abstract In this study, changes in eukaryotic community structure and water quality were investigated in an aerobic trickling filter (down-flow hanging ...