Relationship between physical and chemical characteristics of a mbr mixed liquor: Influence of the EPS on the filtration resistance and other physical parameters
Full text
Procedia Engineering 44 ( 2012 ) 686 – 688 1877-7058 © 2012 Published by Elsevier Ltd. doi: 10.1016/j.proeng.2012.08.530 (XURPHPEUDQH&RQIHUHQFH >3@ 5HODWLRQVKLSEHWZHHQSK\VLFDODQGFKHPLFDOFKDUDFWHULVWLFVRIDPEUPL[HGOLTXRU ,QIOXHQFHRIWKH(36RQWKHILOWUDWLRQUHVLVWDQFHDQGRWKHUSK\VLFDOSDUDPHWHUV (=XULDJD$JXVWt$%HV3Li-$0HQGR]D5RFD6ÈOYDUH]%ODQFR 8QLYHUVLGDG3ROLWp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vailable online at www.sciencedirect.com
687 E. Zuriaga-Agustuc0u8730 u8800 et al. / Procedia Engineering 44 ( 2012 ) 686 –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
688 E. Zuriaga-Agustuc0u8730 u8800 et al. / Procedia Engineering 44 ( 2012 ) 686 – 688 ,Q WDEOH WKH PHDQ YDOXHV RI WKH PL[HG OLTXRU SK\VLFDO VWXG\ DUH VKRZQ 9LVFRVLW\ UHVXOWV VKRZHGWKDWDFWLYDWHGVOXGJHZDVEHKDYLQJDVDQRQ1HZWRQLDQIOXLG7KHUHZDVQ¶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ȘP3DÂ V Ȗ V &67 V '>@ P G P G P G P 5HIHUHQFHV >@ $ 'UHZV 0HPEUDQH IRXOLQJ LQ PHPEUDQH ELRUHDFWRUV &KDUDFWHULVDWLRQ FRQWUDGLFWLRQ FDXVHDQGFXUHV-RXUQDORI0HPEUDQH6FLHQFH >@ ) 0HQJ 65 &KDH $ 'UHZV 0 .UDXPH +6 6KLQ ) <DQJ 5HFHQW DGYDQFHV LQ PHPEUDQHELRUHDFWRUV0%5V0HPEUDQHIRXOLQJDQGPHPEUDQHPDWHULDO:DWHU5HVHDUFK ± >@ 7+ %DH 70 7DN ,QWHUSUHWDWLRQ RI IRXOLQJ FKDUDFWHULVWLFV RI XOWUDILOWUDWLRQ PHPEUDQHV GXULQJ WKH ILOWUDWLRQ RI PHPEUDQH ELRUHDFWRU PL[HG OLTXRU -RXUQDO RI 0HPEUDQH 6FLHQFH .H\ZRUGV0HPEUDQHELRUHDFWRUV(360L[HGOLTXRU