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Hydroxypropyl guar gum (HPGG), polyacrylamide (PAM) and carboxymethyl cellulose (CMC) are widely used as thickeners in fracturing fluids, and thus contaminate wastewater. We designed a clean oxidation process for the treatment of waste fracturing fluids containing hydroxypropyl guar gum and other polymers under high pH value. For that, 1,10-phenanthroline(L)-transition metal complexes were prepared...
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