Electrocoagulation as a pre-treatment stage to reverse osmosis units
Lin, Jack, Millar, Graeme J., Couperthwaite, Sara J., & Mackinnon, Ian D.R. (2014) Electrocoagulation as a pre-treatment stage to reverse osmosis units. In Ozwater '14 : Australia’s National Water Conference and Exhibition, 29 April-01 May 2014, Brisbane Convention and Exhibition Centre, Brisbane, Qld.
Reverse osmosis (RO) is used by coal seam gas (CSG) operators to treat produced water as it is a well-established and proven technology worldwide. Despite the suitability of RO, there are problems associated with RO technology such as membrane fouling which although not preventing use of RO does decrease effectiveness and increase operating costs. Hence, effective pre-treatment of water samples is essential. Electrocoagulation (EC) potentially can provide improved water purification compared to conventional coagulation prior to an RO unit. This paper provides the first reported study of EC for CSG water pre-treatment and compares the performance to a range of aluminium and iron based coagulants. It was found that EC was superior in terms of removal of silica, calcium, magnesium, barium and strontium in the produced water.
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|Item Type:||Conference Paper|
|Keywords:||coal seam gas, electrocoagulation, coagulation, coal bed methane, silica|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Electrochemistry (030604)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 [please consult the author]|
|Deposited On:||28 Apr 2014 02:56|
|Last Modified:||25 Jul 2014 06:29|
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