Quality-divided treatment method for gold smelting wastewater
The invention discloses a quality-divided treatment method for gold smelting wastewater. The method comprises the following operation steps of: 1, independently pumping extraction wastewater into a micro-electrolysis filler catalytic oxidation reaction tank, controlling the flow rate and the reactio...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
10.12.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a quality-divided treatment method for gold smelting wastewater. The method comprises the following operation steps of: 1, independently pumping extraction wastewater into a micro-electrolysis filler catalytic oxidation reaction tank, controlling the flow rate and the reaction retention time under an aeration condition to enable the COD to reach 20-40 mg/L, and then entering a comprehensive regulating tank; 2, mixing the impurity-removed wastewater, the reduced wastewater and alkali liquor water, performing linkage control on an acid-base neutralization reaction point through an intelligent pH sensor, enabling the pH value of the mixed liquor to be 7.5-8.5, performing plate-frame pressure filtration, recovering copper hydroxide precipitates from filter residues, and enabling filtrate to enter the comprehensive regulating tank; 3, supplementing strong brine generated by an MVR system into the electrolyzed water, removing cyanide and ammonia nitrogen in an electrocatalytic oxidation reac |
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Bibliography: | Application Number: CN202111086674 |