Bioremediation for CSGW

In a bid to gain healthier public recognition a recent recommendation from the federal Standing Council on Energy and Resources has changed the usage of the term CSG (coal seam gas) to “natural gas from coal seams”. Opposition to CSG mining has been prevalent in the last few years but in reality Queenslands coal seam gas sector has been in existence and development for more than 15 years, and according to Mining Australia has seen “60 billion in investment injected into new Queensland projects and created about 10,000 jobs in the past year.”

Whilst concerns centre around environmental concerns there has yet to be implemented a viable, sustainable treatment system for remediating coal seam gas water. For an interesting overview of Coal Seam gas mining click here

Wetlands using PolyGenomX (PGX) advanced plant technology, coupled with ecologically-balanced engineering design, can process the full flow of CSG water;

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  •  Leaving no salt
  •  Generating power (from plant biomass)
  •  Leaving no brine
  •  Earning carbon credits
  •  Yielding valuable cleansed water for agricultural use
  •  Restoring habitat to leave land better than it was before mining.

1000ha of wetland densely planted with specially-adapted, fast-growing reeds can process the full CSG water discharge of the four major gas producers. The reeds, yielding 125,000 MT of dry biomass annually with an energy density 15% higher than brown coal, can generate 637,500 MW hours of electricity annually worth $61M, or $1.8bn in power over a 30 year span. This contrasts starkly with the $1.1bn consumption of present CSG water treatment methods and offers a net gain of $2.9bn over the project lifetime.

Wetland pass-through water (either partly or completely desalinated via the reed bed) is used to feed plantations of fast-growth salt-adapted trees for timber, biofuel or carbon capture as required. As these plantations mature they surpass the wetland’s capacity to process raw CSG water, forming the powerful second stage of a highly flexible water treatment system regulated by and responsive to water flow.

For more information on PolyGenomX’s environmental remediation solutions click here

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