Treatment method of high-acidity high-salinity copper-containing organic wastewater

The invention discloses a treatment method of high-acidity high-salinity copper-containing organic wastewater. The method includes: (1) iron displacement, to be specific, adding excessive scrap iron or scrap iron alloy in an iron replacement reaction tank to replace and recycle copper and remove aci...

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Bibliographische Detailangaben
Hauptverfasser:	LIAO QIUWEN, ZHOU SHUGUANG, PENG GUANZHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention discloses a treatment method of high-acidity high-salinity copper-containing organic wastewater. The method includes: (1) iron displacement, to be specific, adding excessive scrap iron or scrap iron alloy in an iron replacement reaction tank to replace and recycle copper and remove acidity; (2) evaporative concentration, to be specific, after the mixed liquor stands and precipitates, subjecting supernate to MVR (mechanical vapor recompression) evaporative concentration and crystallization to obtain NaCl and Na2SO4 white crystal; (3) performing Cl2 oxidation, to be specific, reacting residual liquor with Cl2 in an oxidation reactor after evaporation so that Fe is oxidized into Fe, and cooling to obtain FeCl3.6H2O, wherein organics in residual liquor are oxidatively degraded partially; (4) treating with distilled water, to be specific, degrading distilled water via chemical oxidation COD by 70%-85% with BOD/COD>0.3, performing biochemical treatment on COD by means of SBR (sequencing batch