新型凹土吸附剂去除养殖废水中氨氮的研究_于鹄鹏

新型凹土吸附剂去除养殖废水中氨氮的研究＊于鹄鹏,钱运华,胡　涛(淮阴工学院生命科学与化学工程学院,江苏省凹土资源利用重点实验室,江苏　淮安　223003)摘　要:以凹凸棒土为主要原料,制备新型废水氨氮吸附剂。考察了吸附剂添加比例、处理时间、pH和处理温度等因素对该新型吸附剂去除废水中氨氮的影响。研究结果表明:当吸附剂添加比例为5%、处理时间为90min、pH为8.39、处理温度为常温时,所制备的新型吸附剂吸附效果最好,对废水中氨氮有良好的去除率。关键词:凹凸棒土;吸附剂;氨氮处理ResearchonAdsorbentConditionsofanewAdsorbentforAmmoniaNitrogenWasteWaterwithPalygorskite＊YUHu-peng,QIANYun-hua,HUTao(SchoolofLifeScienceandChemicalEngineering,HuaiyinInstituteofTechnology,KeyLaboratoryforPalygorskiteScienceandAppliedTechnologyofJiangsuProcince,JiangsuHuai'an223003,China)Abstract:Anewadsorbentforammonianitrogenwastewaterwaspreparedbypalygorskiteasessentialmaterial.Theinfluencesoftheadsorbentcontent,thetime,thepHvalueandthetemperatureondisposalsoftheadsorbentwerestudiedbyasinglefactorexperimentdesign.Theresultsshowedthebestammonianitrogenremovalrateoftheadsorbentwasa-chievedwhentheratioofwastewatertotheadsorbentwas19,thedisposingtimewas90min,thepHvaluewas8.39andthedisposingtemperaturewas25℃.Keywords:palygorskite;adsorbent;ammonianit