固体生物聚合硫酸铁的制备及其絮凝性能
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2020-04-17 12:41:46
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化工进展CHEMICALINDUSTRYANDENGINEERINGPROGRESS2019年第38卷第5期固体生物聚合硫酸铁的制备及其絮凝性能徐小惠1,2,鲁敏1,杨柳1,王悦3,刘雅琪4,关晓辉1(1东北电力大学化学工程学院,吉林吉林132012;2东北大学资源与土木工程学院,辽宁沈阳110819;3广东省特种设备检测研究院珠海检测院,广东珠海519000;4内蒙古国华呼伦贝尔发电有限公司,内蒙古呼伦贝尔021025)摘要:以工业FeSO4·7H2O为原料,制备生物聚合硫酸铁(bio-polymericferricsulfate,BPFS),采用减压蒸发技术制备固体生物聚合硫酸铁(solidbio-polymericferricsulfate,SBPFS),以松花江水为处理对象研究其絮凝性。研究内容包括固化温度、固化时间和添加剂的确定,通过扫描电子显微镜(SEM)、X射线衍射(XRD)、红外光谱分析(FTIR)和X射线光电子能谱分析(XPS)对其结构进行表征。研究结果表明:当固化温度55℃、固化时间4h、添加剂为KAl(SO4)2时,絮凝剂的絮凝性强。SEM表明产物质地膨松、比表面积大;XRD表明产物属于非晶态物质,固体粉末颗粒没有特定的形状和结构;FTIR表明了产物的结构;XPS表明产品的主要成分。将制备的BPFS和SBPFS用于处理松花江水时,SBPFS对松花江水浊度和CODMn的去除率略优于BPFS,除浊率和CODMn去除率分别可达96%和80%以上,絮凝效果佳。关键词:聚合硫酸铁;制备;陶瓷拉西环;减压蒸发;固化中图分类号:X703.1文献标志码:A文章编号:1000-6613(2019)05-2434-07PreparationofsolidbiopolymerizedferricsulfateanditsflocculationperformanceXUXiaohui1,2,LUMin1,YANGLiu1,WANGYue3,LIUYaqi4,GUANXiaohui1(1SchoolofChemicalEngineering,NortheastElectricPowerUniversity,Jilin132012,Jilin,China;2SchoolofResourcesandCivilEngineering,NortheasternUniversity,Shenyang110819,Liaoning,China;3GuangdongInstituteofSpecialEquipmentTestingZhuhaiInspectionInstitute,Zhuhai519000,Guangdong,China;4InnerMongoliaGuohuaHulunbeierPowerGenerationCo.,Ltd.,HulunBuir021025,InnerMongolia,China)Abstract:Industrialby-productferroussulfateheptahydrate(FeSO4·7H2O)wasusedtopreparebio-polymericferricsulfate(BPFS).Solidbio-polymericferricsulfate(SBPFS)wasproducedbydecompressionevaporation,whichwasappliedtotheremovalofthewaterofSonghuaRiver.Thestudyincludedthecuringtemperature,thecuringtimeandthedeterminationofadditives.ThestructuresoftheSBPFSweredefinitelycharacterizedbyscanningelectronmicroscopy(SEM),infraredX-raydiffraction(XRD),spectroscopy(FTIR),andX-rayphotoelectronspectroscopy(XPS).Theresultsdemonstratedthattheflocculatingagenthadstrongflocculationwhenthecuringtemperaturewas55℃,thecuringtimewas4h,andtheadditivewasKAl(SO4)2.ThemorphologyoftheSBPFSwasobservedwithascanningelectron第5期徐小惠等:固体生物聚合硫酸铁的制备及其絮凝性能microscope,whichshowedthatthematerialwasbulkyandthespeci
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