17Reverse osmosis (RO) brine produced at a full-scale coal seam gas (CSG) water treatment showed that nearly one-third of the total silicon in the brine was present in the particulates.
25Further, analysis of the RO brine suggested supersaturation and precipitation of metal 26 carbonates and sulphates during the RO process should take place and could be responsible complex minerals, to which amorphous silica and/or silica rich compounds could have 31 adhered. A filtration study showed that majority of the siliceous particles were less than 220 32 nm in size, but could still be potentially captured using a low molecular weight ultrafiltration 33 membrane.
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