System and method for realizing zero discharge of wastewater and recovery of saltpeter

The invention discloses a system and a method for realizing zero discharge of wastewater and recovery of saltpeter. The system comprises a membrane concentration pretreatment unit, a membrane concentration unit, an evaporation salt extraction pretreatment unit and an evaporation salt extraction unit...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MAO TENGFANG, TAN JIEWEN, TANG SHU, FANG ZHIBIN, PENG YUNBO, JIANG ZHENGTONG, HE ZHIYONG, HOU LEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC 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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