Stockhead Special Report: Master Plan

Coal seam gas feeds Queensland’s giant LNG export sector but also generates large quantities of salty waste brine, disposal of which represents extensive environmental risks. 

The industry currently produces 4.8 billion litres of waste brine containing some 200,000t of waste salts per annum and has been unable to develop a solution that will ensure that brine or salt residues are treated to create useable products wherever feasible according to the regulations it is governed by.

And to further highlight the problem, some 6Mt of waste salts are expected to be produced over the life of the existing CSG projects operating in Queensland, a significant proportion of which have already been produced and are currently being stored in 36 brine ponds.

Current plans to dispose of these salts using salt encapsulation present extensive environmental risks and are deeply unpopular with stakeholders, including local farmers and regional community groups.

While this is a major issue, it also represents a significant opportunity – especially when you are a company like Parkway Corporate (ASX:PWN) that has developed a portfolio of proprietary process technologies, to specifically address the waste brine and salt challenges facing the CSG industry.

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