Advanced regeneration and fixed-bed study of ammonium and potassium removal from anaerobic digested wastewater by natural zeolite

作     者：Xuejun Guo Larry Zeng Xin Jin 

作者机构：State Key Laboratory of Water Environment SimulationSchool of EnvironmentBeijing Normal University Environmental TechnologiesAlberta Research Council Inc.VegrevilleAlberta T9C 1T4Canada 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2013年第25卷第5期

页      面：954-961页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the IMUS fund provided by the bio-waste utilization group,Alberta Research Council,Canada the Fundamental Research Funds for the Central Universities (No. 2009SD-8) 

主　　题：regeneration removal ammonium potassium natural zeolite 

摘      要：Highly efficient regeneration of natural zeolite was developed in conjunction with the removal of high concentrations of ammonia and potassium from the reverse osmosis effluent of anaerobic-digested wastewater by fixed-bed ion *** elution and uptake behavior of ammonium and potassium in the fixed bed were *** batch desorption tests and on-column regeneration were conducted to develop an optimum regeneration condition compatible with the wastewater *** effectiveness of ammonium elution increased with increasing alkaline *** increase of salt dose significantly enhanced the ammonium maximum in the elution *** ammonium elution was achieved in 6 bed volumes（BV） when the alkaline and salt concentrations were respectively 0.1 mol/L and 18.6 g/L at a flow rate of 2.5-3.0 BV/*** to the higher affinity of potassium with natural clinoptilolite,complete potassium elution was not achieved in all cases.