碳源对反硝化颗粒污泥稳定性的影响_别红梅
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2020-01-12 00:05:24
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EffectsofcarbonsourceonthestabilityofdenitrifyinggranularsludgeBieHongmei,WangFeng,JinXibiao,YangShanshan(ResearchInstituteofEnvironmentalEngineering,EastChinaUniversityofScienceandTechnology,Shanghai200237,China)碳源对反硝化颗粒污泥稳定性的影响别红梅,王锋,金锡标,杨珊珊(华东理工大学环境工程研究所,上海200237)[摘要]分别以甲醇、葡萄糖、甲醇-葡萄糖(1∶1)为碳源进行反硝化颗粒污泥的培养试验。结果表明:以甲醇为碳源时,当NO3--N负荷提高到6g/(L·d),污泥上浮、流失;以甲醇+葡萄糖为碳源时,当NO3--N负荷提高到6g/(L·d),污泥发白,结构松软,出现上浮;以葡萄糖为碳源时,当NO3--N负荷提高到6g/(L·d),反应器内颗粒粒径分布均匀,运行稳定。分析认为,低生长速率碳源有利于颗粒污泥生长密实,有利于系统稳定运行。[关键词]反硝化;颗粒污泥;碳源[中图分类号]X703.1[文献标识码]B[文章编号]1005-829X(2010)11-0034-03Abstract:Methanol,glucoseandmixedmethanolwithglucose(1∶1)havebeenusedrespectivelyascarbonsourcesforcultivatingdenitrifyinggranularsludge.Theresultsshowthat:whenmethanolascarbonsources,NO3--Nismaintainedat6g/(L·d),thegranularsludgebeginstofloatandwashout.Whenmethanolandglucoseasmixed-carbonsource,NO3--Nismaintainedat6g/(L·d),thesludgeiswhitenedincolor,softenedinstructureandthegranularsludgefloatsup.Whentheglucoseascarbonsource,NO3--Nismaintaineda
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