Aiming at the high COD content of mineral processing wastewater,the backward field treatment technology and the obsolete equipment of the copper mine leading to some indicators of the treated effluent are at risk of exceeding the standard,the process engineering transformation of the original wastewater treatment station is carried out.The heterogeneous composite oxidation process is adopted for treatment,the process reaction speed is fast,the treatment effect is good,and no obvious sediment is produced,which can meet the on-site production conditions.The commissioning and operation results show that the reformed process system runs stably,and the effluent COD index reaches the relevant requirements of the emission limits in Table 2 of the Emission Standards for Pollutants in Copper,Nickel and Cobalt Industries(GB 25467-2010)stably.
heterogeneous complex oxidationmine wastewaterCODmodification works
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