Method for preparing organic coagulant aid from malvaceae plant

• Main Authors: GAO XUELEI, WEI JINGYING, GAO HAI
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The present invention provides a method for preparing an organic coagulant aid from a malvaceae plant, wherein the components of the formula comprise 1-10% of a malvaceae plant macromolecule substance, 0.2-2% of a modifier, and the balance of water. The preparation method comprises: collecting and processing a malvaceae plant, crushing and extracting, carrying out wet heat modification, and filtering. According to the present invention, the natural plant coagulant aid, the aluminum salt flocculant and the iron salt flocculant are subjected to matched use, wherein the flocculant use can be reduced by 40-60% and the flocculation effect of the single use of a large amount of the flocculant can be achieved or exceeded by adding the plant coagulant aid so as to improve the safety of drinking water. 本发明提供了种锦葵科植物制备有机助凝剂的方法。锦葵科植物制备有机助凝剂的组分配方是：1-10％的锦葵科植物植物大分子物质、0.2-2％的改性剂、其余为水。其制备方法包括锦葵科植物采收加工、粉碎提取、湿热改性和过滤处理。本发明的效果是天然植物助凝剂与铝盐、铁盐絮凝剂配合使用，通过添加这种植物助凝剂能够使絮凝剂的使用量降低40～60％，能够达到或超过单独使用大量絮凝剂的絮凝效果，从而提高了饮用水安全性。