Sustainable Mining and Metallurgy

In view of the problem that the collected flue gas and process flue gas of a heavy metal smelting plant cannot reach the emission standard after treatment, and the wastewater treatment cannot achieve zero discharge, the optimization scheme of collected flue gas treatment, process flue gas treatment and wastewater treatment were proposed. The environmental flue gas treatment process had been reformed by adding and improving the flue gas capture cover and reasonably adjusting the air volume at each pumping point. One dynamic wave washing system, one ionic liquid absorption system and one emergency desulfurization tower system were added to the process flue gas treatment process. Wastewater treatment process was newly built. Through the optimization of environmental protection facilities, the emission standards of air pollutants ρ (particulate matter)＜10mg/m³ and ρ (SO₂)＜100mg/m³ were achieved, and the wastewater was zero discharged.