Membrane antisludging agent and method for seawater desalination

The invention provides a membrane antisludging agent for seawater desalination and belongs to the technical field of seawater desalination.The membrane antisludging agent comprises, by weight, 15-30 parts of organic carboxylic acids polymer, 2-8 parts of isophorone diisocyanate, 0.5-2 parts of ethyl...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN YONGXI, LI XIAOZUO, CHEN JIAN, YAN XIAOMAN, ZHU JIALI, ZHAO ZHIJIE, LAI YOUXIAN, CHEN WEILIANG, LI DONGWEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention provides a membrane antisludging agent for seawater desalination and belongs to the technical field of seawater desalination.The membrane antisludging agent comprises, by weight, 15-30 parts of organic carboxylic acids polymer, 2-8 parts of isophorone diisocyanate, 0.5-2 parts of ethylenediamine tetraacetic acid disodium salt and 5-15 parts of sodium lignin sulfonate.The invention further provides a method for desalinating seawater through the antisludging agent.By means of the membrane antisludging agent and method for seawater desalination, a good antisludging effect is achieved, the service life of a reverse osmosis membrane is prolonged, seawater desalination efficiency is improved, and environmental benefits are good. 本发明提供海水淡化用膜阻垢剂，包括如下重量份数的组分：有机羧酸类聚合物15～30份、异佛尔酮二胺2～8份、乙二胺四乙酸二钠0.5～2份、木质素磺酸钠5～15份。本发明属于海水淡化技术领域，本发明还提供应用该阻垢剂的海水淡化方法，实现了很好的阻垢效果，延长了反渗透膜的使用寿命，提高了海水淡化效率，环境效益好。