Method for removing bromine from high-salinity wastewater

The invention discloses a method for removing bromine from high-salinity wastewater. The method comprises the following steps: recovering sodium chloride and potassium chloride in wastewater by adopting a process of combining multiple-effect evaporative crystallization of sodium chloride with coolin...

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Bibliographische Detailangaben
Hauptverfasser:	LIAO WEI, YUAN TAO, CHEN FENGMING, LUO DENGPENG, LI YANBIN, YU HAIKUO, ZHANG SHIFEI, QIN HOUWEI, GAO RONGCHENG, ZHAN DEXIAN, LI TING, GU YUANZHANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention discloses a method for removing bromine from high-salinity wastewater. The method comprises the following steps: recovering sodium chloride and potassium chloride in wastewater by adopting a process of combining multiple-effect evaporative crystallization of sodium chloride with cooling crystallization of potassium chloride, and distilling with water vapor to extract bromine so as to maximally recover sodium chloride, potassium chloride and bromine in the wastewater, implement zero discharge of smelting wastewater and reduce environmental pollution. 本发明公开了一种高盐废水除溴的方法，采用多效蒸发结晶氯化钠结合冷却结晶氯化钾的工艺先回收废水中的氯化钠和氯化钾，然后利用水蒸汽进行蒸馏提溴，可以最大限度回收废水中的氯化钠、氯化钾和溴素，实现冶炼废水零排放，减少环境污染。