Method for processing and reusing ion exchange resin regeneration waste liquid, and method for removing nitrate in underground water comprising the method

The invention relates to a method for processing and reusing an ion exchange resin regeneration waste liquid. According to the method, an anion-exchange membrane bioreactor is utilized for removing nitrate in the ion exchange resin regeneration waste liquid, a nitrogen removal by denitrification med...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG RUOFEI, LEI YUXIA, CAO GUOMIN, SHENG MEI, HAO SHENGNAN, TANG QIWEI, YU YICUN, FANG BIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention relates to a method for processing and reusing an ion exchange resin regeneration waste liquid. According to the method, an anion-exchange membrane bioreactor is utilized for removing nitrate in the ion exchange resin regeneration waste liquid, a nitrogen removal by denitrification medium is arranged on one side of an anion-exchange membrane, the ion exchange resin regeneration waste liquid is arranged on the other side of the anion-exchange membrane, and then the nitrate-removed ion exchange resin regeneration waste liquid is reused for regeneration of saturated ion exchange resin. By utilizing the method, the processing problem of the ion exchange resin regeneration waste liquid is solved, a solid foundation for application of an ion exchange method in a groundwater nitrate removal project in China is laid, the resource utilization of the ion exchange resin regeneration waste liquid is realized, and the method has good application prospect.