Some things I’m working on – Monday April 13th 2020

Howdy folks, about time for me to knock the cobwebs off of this blog. Here are a few things I’ve been working on lately that you may be interested in. Or, you may just want to find out why the featured image is an aardvark. 1: Non-alcoholic Beer – Growing Point 5’s online sales. SomeContinue reading “Some things I’m working on – Monday April 13th 2020”

Taking out the Salt

The large amounts of water required in the hydraulic fracturing of shales for oil or gas is a pressing concern. In hydraulic fracturing, water is sent  down underground at high pressures to fracture the rocks below, allowing gas or oil to be released and captured. When water returns to the surface it often contains large amountsContinue reading “Taking out the Salt”

The benefits of hybridising electrodialysis with reverse osmosis

In a recently published paper in the Journal of Membrane Science, Prof. Syed Zubair, Prof. Lienhard and I reported on how the cost of achieving high purity water with electrodialysis, an electrically driven technology, can be reduced through hybridisation with reverse osmosis, a pressure driven technology. In reverse osmosis, water is pressurised and forced through a membrane thatContinue reading “The benefits of hybridising electrodialysis with reverse osmosis”

Desalination: Is it better to remove the water or the salt?

This blog is based upon “The cost effectiveness of electrodialysis for diverse salinity applications” by Ronan K. McGovern, Syed M. Zubair and John H. Lienhard, published in Desalination. For researchers of new desalination technologies, the question of whether and why salt removal makes economic sense is a very important and relevant one. At present, theContinue reading “Desalination: Is it better to remove the water or the salt?”

Perspective: A new future for desalination?

by Ronan K. McGovern This decade may be remembered for a debate between two similarly named desalination technologies, perhaps to be known as the “reverse osmosis vs forward osmosis (RO vs FO) debacle”. If reverse osmosis – a technology first developed in the 60s, and now dominant in desalination worldwide – would be Goliath, then forward osmosis – first promotedContinue reading “Perspective: A new future for desalination?”