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1、第7卷第5期環(huán)境工程學(xué)報(bào)Vol.7,No.52013年5月ChineseJournalofEnvironmentalEngineeringMay2013一種新型微生物菌劑處理生活污水11221文婭趙國(guó)柱周傳斌曹愛(ài)新徐銳(1.北京林業(yè)大學(xué)生物科學(xué)與技術(shù)學(xué)院,北京100083;2.中國(guó)科學(xué)院生態(tài)環(huán)境研究中心城市與區(qū)域生態(tài)國(guó)家重點(diǎn)實(shí)驗(yàn)室,北京100085)摘要利用從食材中篩選純化的特定微生物制成復(fù)合菌劑,在自然、厭氧和曝氣3種不同的供氧條件下,添加不同比例的菌劑處理生活污水,以COD和氨氮濃度為參考指標(biāo),考察菌劑對(duì)污水的凈化效果,并分析其原
2、因。結(jié)果表明:(1)菌劑投加量在0.5‰~1‰時(shí)對(duì)污水中COD的去除具有明顯促進(jìn)作用,自然、厭氧和曝氣3種條件下,COD去除率最大分別提高了8.77%、11.22%和11.11%;(2)氨氮的去除效果受反應(yīng)條件影響很大,厭氧條件下菌劑對(duì)污水中氨氮的去除作用不明顯,自然和曝氣條件下,菌劑對(duì)氨氮去除效果顯著,去除率增幅最高分別達(dá)到22.6%和52.28%;(3)以0.5‰的菌劑投加量曝氣處理2d,COD和氨氮的去除率可以分別提高11.11%和14.13%,初步研究顯示,該菌劑對(duì)生活污水具有較好的凈化效果。關(guān)鍵詞污水處理微生物菌劑COD氨氮
3、中圖分類(lèi)號(hào)X703文獻(xiàn)標(biāo)識(shí)碼A文章編號(hào)1673-9108(2013)05-1729-06Treatmentofdomesticsewagebyanewmicrobialagent11221WenYaZhaoGuozhuZhouChuanbinCaoAixinXuRui(1.CollegeofBiologicalSciencesandBiotechnology,BeijingForestryUniversity,Beijing100083,China;2.StateKeyLaboratoryofUrbanandRegionEcology
4、,ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China)AbstractAcomplexmicrobialagentusingmaterialsfromdailyfoodsanddrinkswassynthesized.Domes-ticsewagesamplesweretreatedwithdifferentratiosofmicrobialagentunderdifferentaeratingsituation
5、s(naturalventilation,anaerobicandaerobic).Theremovalratesofsewagesamples’CODandammoniaconcentrationweretested.Mainresultsareasfollows:1)Adding0.5‰to1‰microbialagenttothetreatingsewagecansig-nificantlypromoteremovalratesofCODconcentrations,undernaturalventilation,anaerob
6、ic,oraerobiccondi-tions,andtheremovalratesofCODincrease8.77%,11.22%and11.11%,respectively.2)Removalrateofammoniahasasignificantrelationshipwiththeventilatingconditions.Theammoniaremovaleffectunderanaero-bicconditionsseemsnotdistinct,comparatively,undernaturallyventilati
7、onandaerobicconditions,andthebestremovalratesofammoniaare22.6%and52.28%higherthanCK.3)Thebestprocessingconditionoftreatingsewageisunder0.5‰microbialagentandaeratingtwodays,andtheremovalratesofCODandammoniacanincrease11.11%and14.13%,respectively.Preliminarystudiesshowtha
8、tthenewmicrobialagentscouldhavegoodtreatingeffectstodomesticsewage.Keywordsdomesticsewagetreatment;microbialag