Application Practice of Desulfurization Wastewater Treatment in Electrolytic Aluminum Plant
The anode is an essential raw material in the production process of electrolytic aluminum.During the electrochemical reaction,the sulfur in the anode will be oxidized to form sulfur dioxide gas,which will enter the purification system with the flue gas.Most electrolytic aluminum plants use limestone-gypsum wet desulfurization technology for treatment,but desulfurization wastewater will be produced in the treatment process,affecting the environment.In this paper,various treatment methods of desulphurization wastewater are introduced,and the physicochemical treatment process of desulphurization wastewater is applied in an electrolytic aluminum company in Shandong province.The effectiveness of treatment measures is verified through the water quality test results before and after desulphurization and the statistics of water consumption before and after the use of desulphurization system,which provides a better method for the treatment of desulphurization wastewater in the electrolytic aluminum industry.
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