benzene and toluene in csg drainage water, page-3

Have to agree Dex, holding the tongue a little at the incompetence level of the Qld gov but it's hard.
And to the independent member for Nanango who is going arround the radio stations spreading LIES about UCG being an unproven technology, will someone please inform this woman that UCG technology has been in use since the 19th century! Hardly unproven. Very proven, I think she along with many others such as the Australian are confusing UCG with CSG.

"The εUCG technology is designed and tested to prevent or minimize environmental impacts on air, soil, and water (including surface streams and groundwater). For instance, the main principle of groundwater protection during εUCG is illustrated in the process simulation above. The process is conducted in such a way that gasification pressure in the gasifier is always slightly less than the hydrostatic pressure of fluid in the coal seam and surrounding strata. This creates a pressure gradient directed towards the gasifier. As a result, no flow from the gasifier into the surroundings is allowed, thereby preventing the loss of valuable product gas and averting contamination of the underground environment. The thorough characterization of existing aquifers in the vicinity of the underground gasifier and careful monitoring of the hydrostatic pressure in the aquifers during operations, forms an integral part of the εUCG groundwater protection strategy.

An example of the environmental performance of εUCG is provided by the results to date of environmental monitoring in the Chinchilla UCG project in Australia (commenced and run by Len Walker):

* No groundwater contamination.
* No subsidence.
* No surface contamination
* Controlled shutdown completed.
* No environmental issues.
* Annual independent audit ? full compliance with Environmental Management Plan and EPA regulations"