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Fig. 4. Kinetics of phosphate sorption and PGA-C desorption in samples with low (G6) and intermediate PGA-C content (G7) at an initial phosphate concentration of 250 µM in 0.01 M KNO3 at pH 5 with a solid concentration of 0.5 g L1. Figures after G refer to the rounded C content of the sample in milligram C per gram.
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