METHOD FOR ENRICHING AND PURIFYING HEAVY METALS IN SEAWATER

The present disclosure provides a method for enriching and purifying heavy metals in seawater, which belongs to the technical field of seawater purification. The method speciﬁcally includes the following steps: taking Microcyslis aeruginosa as a raw material, extracting acidic polysaccharide from th...

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Bibliographische Detailangaben
Hauptverfasser:	DANNI MIAO, WEIJIE WANG, YICHUN WU, QIAOLING ZHAO, SIYAO SHAO, PINGYA WANG
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WORKING-UP
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Beschreibung
Zusammenfassung:	The present disclosure provides a method for enriching and purifying heavy metals in seawater, which belongs to the technical field of seawater purification. The method speciﬁcally includes the following steps: taking Microcyslis aeruginosa as a raw material, extracting acidic polysaccharide from the Microcyslis aeruginosa, conducting esteriﬁcation cross-linking between the acidic polysaccharide and 2- formylaminosorbitol to obtain a hydrogel with a cross-linking network structure, modifying the hydrogel with sulfamonomethoxine to obtain a modified Microcyslis aeruginosa polysaccharide hydrogel, mixing the hydrogel with diatomite, zeolite, trigonelline, and disodium epoxysuccinate to prepare an adsorbent with a high adsorption capacity, and putting the adsorbent into polluted seawater to adsorb heavy metal ions. The method has an excellent heavy metal removal effect, can rapidly remove heavy metal ions without causing secondary pollution, and has great application prospects.