首页>
外国专利>
METHOD AND SYSTEM FOR SIMULTANEOUSLY RECOVERING AMMONIA COMPONENT AND PHOSPHORUS COMPONENT IN WATER TO BE TREATED
METHOD AND SYSTEM FOR SIMULTANEOUSLY RECOVERING AMMONIA COMPONENT AND PHOSPHORUS COMPONENT IN WATER TO BE TREATED
展开▼
机译:同时回收待处理水中氨氮和磷组分的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To simultaneously recover ammonia and phosphorus components as MAP from water to be treated which water contains the ammonia and phosphorus components.;SOLUTION: The method includes the steps of: (1) adsorbing the ammonia component by bringing the water to be treated into contact with a zeolite-based cation adsorbent; (2) adsorbing the phosphorus component by bringing the water to be treated into contact with a hydrotalcite-based anion adsorbent; (3) desorbing the adsorbed components from the zeolite-based cation adsorbent and the hydrotalcite-based anion adsorbent using a common desorption liquid so that cations and anions in the desorption/regeneration liquid can be used without waste, and recovering a solution where the ammonia and phosphorus components coexist; (4) adding an alkali and magnesium ions to the recovered solution to precipitate and separate the ammonia and phosphorus components as MAP, and simultaneously recovering the ammonia and phosphorus components; and (5) reusing the solution after recovering MAP in the step (4) as at least part of the desorption liquid of the step (3).;COPYRIGHT: (C)2011,JPO&INPIT
展开▼