-97-第45卷第6期非金属矿Vol.45No.62022年11月Non-MetallicMinesNovember,2022绿沸石-牡蛎壳复合材料的制备及其性能研究徐园园李文进林方聪魏一恺吕春光王趁义*(浙江万里学院生物与环境学院，浙江宁波315100)摘要采用高温煅烧法制备绿沸石-牡蛎壳复合材料(GZO)，研究造孔剂与黏结剂用量比、绿沸石与牡蛎壳的物料比、煅烧温度、煅烧时间对GZO性能的影响，确定最佳制备条件为：造孔剂（NaHCO3）与黏结剂（Na2SiO3·9H2O）质量比为1.2g∶6g、绿沸石与牡蛎壳质量比为2g∶8g、煅烧温度为500℃，煅烧时间为2.5h；在此条件下探讨GZO投加量、吸附温度和时间对污染物去除效果的影响。结果表明，GZO添加量为20g/L，在25℃下吸附3d，总磷(TP)、氨氮(NH4+-N)、叶绿素a(Chl-a)和浊度(TUB)的去除率分别达到94.8%、58.6%、86.6%和55.5%，且散失率小于等于6%；对NH4+-N和TP的吸附过程符合准二级动力学模型和Freundlich等温吸附模型。本试验达到同步吸氮除磷除藻，为藻型富营养化水体的污染修复、废弃物资源化利用提供了复合净水材料和新技术。关键词高温煅烧；绿沸石-牡蛎壳复合材料(GZO)；吸氮除磷除藻；藻型富营养化水体中图分类号：X52;TB332文献标志码：A文章编号：1000-8098(2022)06-0097-05PreparationandPropertiesofGreenZeolite-OysterShellCompositesXuYuanyuanLiWenjinLinFangcongWeiYikaiLüChunguangWangChenyi*(CollegeofBiologyandEnvironment,UniversityofZhejiangWanli,Ningbo,Zhejiang315100)AbstractUsinghigh-temperaturecalcinationtopreparechlorine-oystershellcompositematerial(GZO),theoptimalpreparationconditionswereobtained:themassratioofpore-makingagent(NaHCO3)andbinder(Na2SiO3·9H2O)was1.2g∶6g,themassratioofgreenzeoliteandoystershellwas2g∶8g,thecalcinationtemperaturewas500℃andthecalcinationtimewas2.5h.Undertheseconditions,theeffectsofGZOdosage,treatmenttemperatureandtreatmenttimeonpollutantremovalwerediscussed.Theresultsshowedthattheremovalratesoftotalphosphorus(TP),ammonianitrogen(NH4+-N),chlorophylla(Chl-a)andturbidity(TUB)were94.8%,58.6%,86.6%,and55.5%,respectively,afteradding20g/LGZOat25℃for3d,thelossratewaslessthanorequalto6%.TheadsorptionprocessofNH4+-NandTPconformstothequasi-second-orderkineticmodelandFreundlichisothermaladsorptionmodel.Itcanachievesimultan...
