净水技术2023,42(2):140-146WaterPurificationTechnology孙健,杨明,贺珊珊,等.沸石和页岩陶粒对沉积物营养盐释放的抑制效果试验[J].净水技术,2023,42(2):140-146.SUNJ,YANGM,HESS,etal.Inhibitiveeffecttestofnutrientsreleasefromsedimentsbyzeoliteandshaleceramsite[J].WaterPurificationTechno-logy,2023,42(2):140-146.沸石和页岩陶粒对沉积物营养盐释放的抑制效果试验孙健,杨明,贺珊珊,蔡世颜,刘琪,刘向荣∗(中国市政工程中南设计研究总院有限公司,湖北武汉430010)摘要为探讨沸石和页岩陶粒对水体沉积物营养盐释放的抑制效果,设置了沸石、页岩陶粒覆盖沉积物和未覆盖沉积物试验,定期监测上覆水中TP、TN、氨氮、CODCr和叶绿素a(Chl.a)指标,并对比分析沉积物中微生物群落。结果表明,覆盖沸石和页岩陶粒能有效抑制沉积物中N、P营养盐向上覆水的释放,但上覆水中CODCr含量上升。沸石和页岩陶粒主要通过吸附作用抑制沉积物中P的释放,通过基质吸附作用和Ornatilinea与芽孢杆菌属(Bacillus)微生物的脱氮作用抑制沉积物中N的释放,通过促进纤绳菌属(Levilinea)和长绳菌属(Longilinea)厌氧微生物对碳水化合物的代谢作用,引起上覆水中CODCr含量上升。但沸石和页岩陶粒覆盖不能长期维持上覆水中较低的N、P含量,可考虑与沉水植物联合作用进行生态修复。关键词沸石页岩陶粒沉积物营养盐抑制释放微生物群落分析中图分类号:X52文献标识码:A文章编号:1009-0177(2023)02-0140-07DOI:10.15890/j.cnki.jsjs.2023.02.018InhibitiveEffectTestofNutrientsReleasefromSedimentsbyZeoliteandShaleCeramsiteSUNJian,YANGMing,HEShanshan,CAIShiyan,LIUQi,LIUXiangrong∗(Central&SouthernChinaMunicipalEngineeringDesignandResearchInstituteCo.,Ltd.,Wuhan430010,China)AbstractToinvestigatetheinhibitiveeffectofnutrientsfromsedimentsbyzeoliteandshaleceramsite,setupzeolite,shaleceramsite-coveredsedimentanduncoveredsedimenttests.TP,TN,ammonianitrogen,CODCrandChl.aweremonitoredregularlyintheoverlyingwater.Andmicrobialcommunitiesinsedimentswereanalyzed.ResultsshowedthatzeoliteandshaleceramsiteeffectivelyinhibitedthereleaseofNandPfromsedimenttooverlyingwater,butCODCrcontentintheoverlyingwaterincreased.ZeoliteandshaleceramsiteinhibitedPreleasingfromsedimentsmainlythroughadsorption,inhibitedNreleasingfromsedimentsmainlybya...
