Sewage sludge down on the farm

The phrase "sewage farm" may have fallen from favour and been replaced with terms such as waste water treatment works and the like. But, the origin of that archaic phrase refers very directly to the fact that partly processed ...

Nordic microalgae cleans wastewater and produces biodiesel

Lorenza Ferro demonstrates the potential of Nordic microalgae for simultaneous production of biomass and municipal sewage treatment in our Nordic climate. She has also studied how microalgae and bacteria work together and ...

Can we turn sewage 'sludge' into something valuable?

Over the past few years I have become an academic expert in "sewage sludge" – the residual, semi-solid mix of excrement packed with microorganisms that is left behind within wastewater treatment plants. Every year the UK ...

Sewers could help clean the atmosphere

Sewage treatment—an unglamorous backbone of urban living—could offer a cost-effective way to combat climate change by flushing greenhouse gases from the atmosphere.

What causes algal blooms, and how we can stop them?

Outbreaks of algae have killed up to a million fish in the Murray Darling Basin over the last two weeks. The phenomena of "algae blooms", when the population of algae in a river rapidly grows and dies, can be devastating ...

Removing multi-resistant bacteria from sewage

Multi-resistant bacteria have learned to survive treatments with antibiotics by developing defense mechanisms. Not all of them are dangerous for human beings. Still, these bacteria are able to transmit their resistance genes ...

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