reverse electrodialysis Archives – The Green Optimistic

Microbes and Saltwater Used to Produce Electricity from Wastewater and Waste Heat

Ovidiu Sandru — Fri, 02 Mar 2012 18:15:21 +0000

The difference between saltwater and freshwater can produce electricity. Microbial fuel cells use bacteria to degrade organic matter to also produce energy. Great as they are, these two technologies have had limitations in the past, but now a team of scientists unite them in a system that eliminates most of their shortcomings. The team, led […]

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New Microbial Fuel Cell Generates Hydrogen in Self-Sustaining Fashion

Ovidiu Sandru — Fri, 23 Sep 2011 10:21:26 +0000

Penn State University researchers have recently demonstrated a system that produces hydrogen from water. Nothing fancy so far. What’s interesting is that they use salt water, tap water, bacteria and membranes to make the process self-powered. Unlike the experiments performed so far, where bacteria inside watery solutions could produce hydrogen only in the presence of […]

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Dutch & Norvegian Researchers Say Osmosis Power Plants Could Suffice World's Electricity Needs

Ovidiu Sandru — Tue, 20 Jul 2010 19:04:09 +0000

A new approach to generate electricity comes from engineers from Europe's northern countries of the Netherlands and Norway. They want to use the difference between salty and fresh water through osmosis in two different manners and say that their solutions could suffice the entire world's energy needs. The New Scientist joined them both in an interesting case study.

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