Sewage treatment
Videos
Sewage treatment is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding environment or an intended reu
Activated sludge sewage treatment plant in Massachusetts, US
Rural Kansas lagoon on private property
Aeration tank of activated sludge sewage treatment plant (fine-bubble diffusers) near Adelaide, Australia
A poorly maintained anaerobic treatment pond in Kariba, Zimbabwe (sludge needs to be removed)
Water pollution
Videos
Water pollution is the contamination of water bodies, which has a negative impact on how they can be used. It is usually caused by human activities. Water bodies include lakes, rivers, oceans, aquifer
Garbage floating in water, Circular Quay, Sydney, Australia
Poster to teach people in South Asia about human activities leading to the pollution of water sources
Bauxite residue is an industrial waste that is dangerously alkaline and can lead to water pollution if not managed appropriately (photo from Stade, Germany).
Muddy river polluted by sediment