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Lurgi coal‐gasification wastewater with an initial total organic carbon (TOC) of 5000 mg/L and ammonia nitrogen (NH3N) of 1500 mg/L was treated by supercritical water oxidation technology to make the effluent reach the national wastewater discharge standard I in China (TOC < 20 mg/L, NH3N < 15 mg/L). Response surface methodology method combined with central composite design and regression...
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