STUDY OF APPLICATION OF WASTEWATER TREATMENT PROCESS TECHNOLOGY IN ENRICHMENT AND MELTING TIN

Abstract

Effect of catalytics on wastewater treatment of enrichment and melting tin at Thai Nguyen Mine and Metallurgy Co.ltd was reported in this research. Treatment effect is characterized using different analytical techiques such as Atomic Absorption Spectrometric (AAS), Atomic Emission Spectroscopy (AES), total organic carbon analysis. The result shows that the combination of photocatalytic material Al/Al₂O₃/TiO₂-Ag and catalytic system (FeSO₄ 10% + H₂O₂ 30%) or catalytic system (nano Fe^o+ H₂O₂ 30%) obtain wastewater treatment effect that satisfies national standard QCVN 40:2011/BTNMT of industrial wastewater. Condition of treating undecomposed organic waste for both catalytic system is suggested as pH ≤ 2 and 8 hours. While condition of treating left chemical and heavy metal is suggested as pH =9 and time is sugested as 120 minutes for (FeSO₄ 10% + H₂O₂ 30%) system and 60 minutes for (nano Fe^o+ H₂O₂ 30%) system.