AO工艺处理沤麻废水的实验研究张朝升

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:,,1953,1977,,。A-O工艺处理沤麻废水的实验研究张朝升 张可方(, 510405) ,,(UASB)-。CODcr95%~97%,BOD596%~99%,75%~86%,1kgCODcr0.349m3,,。   AnexperimentofrettingflaxwastewatertreatmentbyUASB-contactoxidationprocess ZhangChaosheng,ZhangKefang.DepartmentofEnvironmentalEngineering,SouthChinaConstructionUniversity,Guangzhou510405Abstract:Apilotexperimentofrettingflaxwastewatertreatmentwasconducted.Theresultsshowedthattherettingflaxwastewatercouldbewelltreatedbyupflowanaerobicsludgeblanket(UASB)-contactoxidationprocess.ThemaximumremovalrateofCODcr,BOD5andligninwere95%~97%,96%~99%and75%~86%,respectively.Theremovalof1kgCODcrcouldgenerate0.349m3marshgas.Andthetreatedwastewatercouldbereusedtoretflax,sothattheobviouseconomicandenvironmentalbenefitscouldbeachieved.Keywords:Upflowanaerobicsludgeblanket(UASB) Contactoxidation Rettingflax  ,CODcr7500mg/L,BOD54000mg/L,30~32℃,。(UASB)。,,。1 1.1 试验条件,,,。CODcr4100~10900mg/L、BOD52000~6000mg/L、137~262mg/L、SS600mg/LpH5.0~5.7;6m3/d,30~32℃。1.2 工艺流程的确定,。CODcr、BOD5,32℃,32~35℃,,,CODcr、BOD5,,,。,。,,,,,。1。,,,,,。2 2.1 厌氧污泥床的实验运行2.1.1 1,ρB。1,,CODcr500~1000mg/L,BOD5100~440mg/L。。。2.1.2 、、。UASB·16·  23 1 20012DOI:10.15985/j.cnki.1001-3865.2001.01.006。:,;,,(0.1~0.3mm);,,,0.2~0.6mm,。,,,0.1~2mm,0.4~0.6mm。1 1.;2.;3.;4.;5.;6.7.;8.;9.;10.;11.1   CODcr/mg·L-1BOD5/mg·L-1ρB/mg·L-1pHSS/mg·L-14100~109002000~6000137~2625.0~5.7600750040001995.3 432~992106~44093~1887.12~7.422277122731157.3/%78.1~95.290.2~98.712.5~51.962/%89.395.630.5  ,、、。(CH4/VSS)1885mL/g·d。,,。Ca2+,HCO-3CO2-3CaCO3,CaCO3,、,。CaCO3,。,——,。,1~2mm,。,。,。2.1.3 ,。,2。2 2(y)(x),:·17· A-O y=2.21x-0.477   r=0.940CODcr(y),:y=0.52z+0.037r=0.977,z——CODcr,kg。,,,。,,。,,,。2.1.4 24h;CODcr4.1~10.9kg/m3·d;30~32℃。2.2 结果与讨论2.2.1 ,,2。2   CODcr/mg·L-1BOD5/mg·L-1ρB/mg·L-1SS/mg·L-1 432~992106~44093~188227712273115 154~29117~5718~63412223734*300100100/%54~7579~9067~8781 /%688375 :*,DB23/046—92;ρB2,。2.2.2 9.6~10h;40∶1;CODcr1.80~2.38kg/m3·d;3mg/L;BOD50.4~0.55。2.2.3 :;;。,。:N=KLne(1),N——,kg/m3·d;K——,1mg/L;Le——,mg/L。:N=0.2045Le0.347R=0.729(2)(2)BOD5。BOD5180~200mg/L,26.36~30.49mg/L,(2)22.19~29.96mg/L,,(2)(:CODcr,BOD5,)。3  (1)UASB—,CODcr4000~10000mg/L,CODcr154.75~291.72mg/L,96%~99%。BOD52000~6000mg/L,BOD517~63mg/L,96%~99%。137~262mg·L-1,18~63mg/L,75%~86%。(2)4.0m3/m3·d,70%,1kgCODcr0.349m3,。(3)UASB-,,,,,。 1  ,..:,1992 2 , ,..,1997,(6):358(:1999-12-21)·18·  23 1 20012

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