Industrial wastewater treatment process of copper-based hydrogenation catalyst
The invention provides an industrial wastewater treatment method of a copper-based hydrogenation catalyst. According to the method, under the premise that production wastewater of the copper-based hydrogenation catalyst is not subjected to any pretreatment, suspended materials in wastewater are remo...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an industrial wastewater treatment method of a copper-based hydrogenation catalyst. According to the method, under the premise that production wastewater of the copper-based hydrogenation catalyst is not subjected to any pretreatment, suspended materials in wastewater are removed by virtue of microfiltration, and metal copper in a solution subjected to microfiltration is recycled by virtue of combination of electrolysis and electrodialysis; and an additional chemical reagent is not added in the treatment process, so that the reutilization of solid materials is guaranteed. According to a new process, wastewater produced during second time of pulping and third time of pulping is taken as last raw water for the next cycle; and fresh water produced by virtue of electrodialysis is used as raw water for the third pulping, thereby realizing the optimal selection of the cyclic utilization of all wastewater. The process has the beneficial effects of short technological process, low treatment cos |
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