ࡱ> 9 RCbjbj2l6666666Jpppp<TJ4@ LXXXXXXXh3j3j3j3j3j3j3A5 a7Xj3Q6XXXXXj3,66XX3,,,X6X6Xh3,Xh3,T,-66-X  KJ&p*)|--L304-7,"7-,JJ6666W>WnnmvmQ 8TDYtxvz elo  Xd xvzhf Ǒ(uPAC\OmQBR0&qp\O8TDBR S gHeSdnnm-NvCODTTR͑ё^\P[0PACT&qpbϑR+R:N400mg/LT8^10g/Le CODSds58.9 ͑ё^\yP[vSdsGW60]S vQ-N[CuvSdя1000mQT8TD[TalgirvSdwQ gNe'` V dk]zwQ go}YvЏLup;m'`T3z['`0mQ[nnmr^wQ gf>fvSdHeg(68)&qp8TD-NX[(Wf>fvzNsa vQ-N[CODv8TDwQ gf>fvzNOR0 sQ.͋ W>Wnnm irSYt PAC &qp Pretreatment of Landfill Leachate by Coagulation-Adsorption Process SHEN Yaoliang YANG Quanda WANG Baozhen (1.Depart.of Environ.Protection Suzhou Institute of Urban Construc. and Environ. Protection Suzhou 215011 ,China;2.School of Munic.and Environ.Eng., Harbin Univ. of Civil Eng. and Architec. Harbin 150008,China) Abstract:A study on the pretreatment of landfill leachate by coagulationadsorption was carried out and reported in this paper. The results showed that the effective removal of COD and heavy metals could be obtained by using PAC as coagulant and processed coke as absorbent. With PAC dosage of 400 mg/L and processed coke dosage of 8^10 g/L, 58.9% ofCOD and about 60% of heavy metals removals were achieved, of which the removal of Cu was nearly 100%. The mutually complement action of coagulation and adsorption processes was found which would promote the stable and flexible operation. In addition, 68% of color reduction was achieved by coagulation at PAC dosage of 400 mg/L. In adsorption process, the obvious competitive adsorption phenomenon was observed and COD possessed a b competitive potential because of its high concentration in leachate. Keywords:landfill leachate;physicochemical pretreatment;PAC;coke 00nnm/fNy4l(4lϑSS'Y0bR YBgvؚSm^ g:g^4l vQ4l(4lϑyr_Q[N{Ǒ(uirSTuS~T]zRNYt;1=0irSlYtS gHeJRQnnm-NvCOD0(l.l0͑ё^\yP[0r^I{ :NvQT~vuirYt]zR o}YvagN0,ge[mQ &qp8TDYtnnmvHegS:gtۏLNxvz0 1 xvz]zSel 00nnmSmg])YP[\W>WkXW:W vQ4l(`Qh1(TchvKm[Rgel chQlۏL) mQ 8TDGkYt]zAm zV10 h1 nnm4l(`Q ch Sm^mg/L) ch Sm^mg/L CODcr 3621 Y‰ hўr BOD5 2100 Cu 0.207 NH3-N 240 Pb 0.196 TS 4000 Cd 0.012 SS 350 Cr 0.049 r^ P 1250 Zn 0.462 PH 6.5-7.5  INCLUDEPICTURE "http://www.msw.com.cn/UploadFiles/2005222171541872.gif" \* MERGEFORMATINET  1.1 mQՋ 00 mQvvv/fSdnnm-NvCODTR͑ё^\yP[ NCODvSd\O:N;N[[aTch0mQՋǏ z-NHQ[ N T{|WvmQBRۏL[{ gT bwQ gؚHe0NO0N^S[pH^'`}YvZT/lSݔ(PAC)\O:NmQBR0 00 mQd\OagN:NTň g600mL4l7hvpog-NReQ N TϑmQBRv Te _db30^60s(l:N300 r/min) c@w(W-NagN Ndb10min(l:N100r/min) gT(WbaagN Ndb15min(l:N50r/min)0db~_gv^YnlM30minT S NnmۏLRgKm[(\O N!ks^LKm[)0 1.2 8TDՋ 0 nnm~mQlmYtTۏL8TDYt0Ǒ(u^Nv&qp\O:N8TDBR(&qpSς] :ghSp) \&qpxb~||+gr (u100^200vT[_RP[[{ۏL[{R Q(u0.05mol/LvHNO3nmmmNSdvQ-NvSn'`ё^\'lSir gT(u4lmmpe!kNSdnm-Nvx (W100! NnNr^q{-Npr^_(u0&qp~Ǐ|xS;mSYtTwQ gؚvkhby(225^500m2/g) NHTYT[~g vQ;NbRSxQW+Tϑ:NSiO2:63.87%0Al2O3:14.39%0Fe2O34.62%0CaO3.70%0MgO0.22%0vQN'lSir2.31%0 g:gir11.5%0n^0.1% EeSPRvQ~gQ萃Yvx'`WVw0Ro}Yvn}Q8TD\O(u;203=0 (W[)nagN NN N T8TDeT&qpbϑ[͑ё^\yP[vSd`QۏLN[(n~ǏnRg)0 2 ~gSRg 2.1 mQՋ 0 V2@b:y:N N TmQBRbϑ[nnm-NCODTr^vSdHeg0  INCLUDEPICTURE "http://www.msw.com.cn/UploadFiles/2005222171624480.gif" \* MERGEFORMATINET  01uV2S S_PACbϑ:N50^100 mg/Le CODSds1u18.4% NGS37.3%S_bϑ:N200^280mg/Le CODvSds:N3z[ 38%]Sbϑ~~cؚ CODSdsf>f NM0V 1\CODvSdHeg vQ[vPACbϑ:N200^800mg/L gObϑ:N200mg/L0[r^SdHegvKm[~ghf mQBRbϑvXR r^vSdsHTsQHQ NGST NMvR0S_bϑ:N400mg/Ler^Sdsgؚ(68%)0[mQQ4l-N͑ё^\yP[vKm[~ghf S_PACbϑ:N400mg/Le T͑ё^\yP[vSdsGWvQNbϑeؚ(h2)0[mQS^Ǐ z-Nn}SO'`v‰[Ss S_PACbϑ:N200^800mg/Le n}SOY bϑ:N400mg/Len}SOQs^_0:\['YNlM^g_ lmT Nnmno HTmĞr bϑ200b800mg/Le n}SO|\NlM^GWba Nnmr^ؚ0 h2 mQ[͑ё^\yP[vSdHeg ё^\yP[ S4lSm^mg/L mQQ4lSm^mg/L Sds% Cu 0.207 0.155 25.12 Pb 0.196 0.140 28.57 Cd 0.012 0.010 16.67 Cr 0.049 0.039 20.41 Zn 0.462 0.399 13.64 l )n^22.5! S4lPH7.2 PACbϑ400mg/L0 nnm-N@b+TTy g:gir'YY:NPk({|ؚRP[x4lSTirT-NI{RP[ϑvppĞ x{|ir(0ُNir(1uNvQ~gv N T X[(W N TvmQBR[bϑ0Nnnmv4l(eg w vQTSSm^ؚ(:N4000mg/L) SSSm^NO(:N350mg/L) 'YR:Nn'`VSO0V 9hncSS-NCODv'Y+TϑSw mQ@bSdvCOD-N^`nmRvkOؚ0 00 xvzhf PAC[͑ё^\yP[ gN[vYtHeg0ncbS mQǏ z-N1uN_db _wvEQ'lOۏN͑ё^\yP[v'lS )RN[N(Wn}SOhbv8TD01uNnnm-Nv g:girϑ'Y0y{|Y [N\N͑ё^\yP[(Wn}SOhbv8TDSuzN q_TTvSd0dkY nnmvpHf0 00 9hnc NՋ~gS~TQ[TchvSdHegSw (WPACbϑ:N400mg/LeYtHeggsOCODSdsS38.1% r^Sds68.0% mQT NnmpH:N6.80\dkagN N@b_vYtQ4lۏL8TDՋ0 2.2 8TDՋ 00 N T&qpbϑ N8TDs^aevT͑ё^\yP[SCODSdsYV3@b:y0  INCLUDEPICTURE "http://www.msw.com.cn/UploadFiles/2005222171655434.gif" \* MERGEFORMATINET  1uVS Ǐ&qp8TDT T͑ё^\yP[SCODGW_0R'YE^^vSd0Sds&qpbϑvXR cؚ0S_&qpbϑ:N8^10g/Le(ՋagN)n^22.5! S4lpH6.8 8TDe120min) [Cu0Pb0Cd0Cr0ZnTCODCr vSdsR+R:Nя100%055.0%^56.4%051%028.2%^48.7%051.1%^54.9%034.4%^35.0%0&qp[CuwQ gg}Yv8TD'` [CrvSdsRNO0 00 xvz-Nv8TD:NY~R8TD N^(uFrendlichbLangmuir8TDI{)n_RNRg( gsQ [S~R g:girvxvz_NhfNُNp;4=)0sN1\&qp[ N T͑ё^\yP[v8TDRSSdHeg~T8TD:gtSq_TV }\OY NRg0 00h3RQNT͑ё^\yP[TCOD8TDs^aev8TDϑ0&qp[Cu0Pb0Znv8TDRؚNCdTCr MRv8TDR:N0.011^0.022 7 mg/gp TkMRNON*Npeϑ~0vQ-N[Znv8TDRg:_ [Cdv8TDRg]0&qp[CODwQ go}Yv8TDR 8TD[ϑ:N70.95^96.46mgCOD/g s^GW:N83.86mgCOD/g0 h3 N T&qpbϑ8TDs^aev8TDϑSs^GW

fؚNmQ N[Cu0ZnTPbwQ g50%N Nv8TDSds vQ-N[CuvSdHeg$\:N>fW0&qp8TD[͑ё^\yP[vSdsؚNOc^:NCuPbZnCdCr0  INCLUDEPICTURE "http://www.msw.com.cn/UploadFiles/2005222171717328.gif" \* MERGEFORMATINET  3 ~ 00`$PACmQ &qp8TDYt[nnm go}YvYtHeg0(WPACbϑ:N400 mg/L0&qpbϑ:N8^10 g/LvagN N TalgirvSdsR+RCOD 59.8%0Cuя100%0Pb 68.9%0Cd59.2%0Cr 59.1%0Zn61.0%0V [\O:NNy~NmTЏLup;mvYt]z ^(uNnnmvYt/fSLv0 00 a$mQT8TD[algirvSd(,gxvz-N@bRg[v͑ё^\)wQ go}YvNe'`0PAC[͑ё^\yP[vSdsؚNOc^:NPbCuCrCdZn &qp[͑ё^\yP[v8TDSdsc^:NCuPbZnCdCr f]zwQ g:_vЏL3z['` S_[Yy͑ё^\yP[vo}YSdHeg0 00 b$nnm+T gYyalgir( vQ8TD^\NY~R8TDǏ z 8TDǏ z-NX[(W:_pvzN8TDsa CODRwQ gf>fvzNOR0 Se.s ;1=Wang B Z et al .A pilot scale study on the treatment of high strength sanitary landfill leachate .European Water Pollut Control,1997,7(6):33-40. 00;2=Lopez-Delgado A et al .Sorption of heavy metals on blast furnace sludge;J=.Water Res ,1998,32(4):989-996. 00;3=lo.^4lYt-NvQy^N8TDBR;J=.͑^sXyf[ 1995 17(3)49-53. 00;4=(Takatsuji W et al .Adsorption of organic acids on weakly basic ion exchanger :equilibria for binary systems ;J=.AIChE Jour ,1998,44(5):1216-1221.) 00;5=(Majone M et al .Influence of metal speciation in landfill leachates on Kaolinite sorption ;J=.Water Res,1998,32(3):882-890.) 00;6=(Dimitrova S V.Metal sorption on blast-furnace slag;J=.Water Res ,1996,30(1):228-232.) 00;7=(Smith E H.Uptake of heavy metals in batch system by a recycled iron-bearing material;J=.Water Res,1996,30(10):2424-2434.) 00\O{Nlo(1961- ) 7u _lςe!N ς]W^sOf[boRYec lwm'Yf[ZSXT0 Oo`egn 0-NV~4lc4l 0  "$&068:<H24.H (*.068:BDLNR̿嵮y5CJOJQJ\aJo(B*OJQJaJph3330JOJQJo(0JB*aJph3330J5B*\aJph333 B*aJph3335B*\aJph333jCJOJQJUaJCJOJQJaJo(B*CJOJQJaJo(phfffCJaJCJOJQJaJ0JB* OJQJo(phf/$&6:,e$$If  @ 0ffff634a $d,$Ifa$C:<4~ $d$IfK$a$ d,$Ife$$IfX  @ 0ffff634ad d$IfK$a$K$L$IfT0634ab *08:DNT^LSSSS^PSSS d$IfK$$K$L$IfT\[ 0634ab RT^`blntvz|^`b ">j¶¥–B*CJaJph333B*CJOJQJaJo(ph333 j5B*CJU\aJph3335B*CJ\aJph333 j5B*CJU\aJph333B*OJQJaJph3335B*\aJph333CJaJCJOJQJaJo(CJOJQJaJ7T`bnv|SPSH$K$L$IfT\[ 0634ab d$IfK$ SDST$K$L$IfT\[ 0634ab d$IfK$ S0$K$L$IfT\[ 0634ab d$IfK$`".P(a|pgggR$ddd$IfK$[$\$a$ d,$If $d,$Ifa$ $d,$Ifa$v$K$L$IfT00634abj,.(.NPRZ\pr $&02ѶꧣCJaJ CJOJQJ5\B*CJOJQJaJo(ph333B*CJOJQJaJph333j9 B*CJUaJph333jB*CJUaJph333B*CJaJo(ph333B*CJaJph3335B*CJ\aJph333;PR\rddd$IfK$[$\$b$K$L$IfT06234aZXHHHHZXHHddd$IfK$[$\$$K$L$IfT\[ 06234ab HXHX$K$L$IfT\[ 06234abddd$IfK$[$\$ &2>JLR^jHX$K$L$IfT\[ 06234abddd$IfK$[$\$2<>HJLPR\^hjtvx>#V#####$$$$((((((((((((((((((((()))5\B*CJOJQJaJph333B*CJOJQJaJo(ph333j)B*CJUaJph333jB*CJUaJph333B*CJaJph333B*OJQJaJo(ph3335B*\aJph333 B*aJph333B*OJQJaJo(ph333CJaJ CJOJQJ4jvxH$K$L$IfT\[ 06234abddd$IfK$[$\$#$((Go$ddd$IfK$[$\$a$ d,$If $d,$Ifa$f$K$L$IfT06234ab((((((((\ddd$IfK$[$\$b$K$L$IfT06234a((()0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234ab)) ).):)ddd$IfK$[$\$))) ),).)8):)<)@)B)L)N)X)Z)f)h)t)v)))))))))))))))))))))))*******"*$*.*0*<*>*J*L*X*Z*f*h*j*t*v************t+v+x+z+R4T4x4z45\B*OJQJaJo(ph333 B*aJph333B*OJQJaJo(ph333CJaJ CJOJQJQ:)<)B)N)0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234abN)Z)h)v))ddd$IfK$[$\$))))0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234ab)))))ddd$IfK$[$\$))))0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234ab))***ddd$IfK$[$\$**$*0*0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234ab0*>*L*Z*h*ddd$IfK$[$\$h*j*v**0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234ab*****ddd$IfK$[$\$**v+0ddd$IfK$[$\$$K$L$IfTֈG +  RRRR06234abv+x+T4z4|4\0xm d$IfK$$ddd$IfK$[$\$a$ $d,$Ifa$f$K$L$IfT06234abz4|4~4444444444444444444444445555 55555"5$5,5.505254585:5B5D5L5N5V5X5Z5\5^5b5d5f5h5j5l5t5v5x5z5|5555555555555555555555555555555 CJOJQJCJaJCJOJQJaJ]|4~44444huuuuddd$IfK$[$\$w$K$L$IfT80b06234a4444444Z`R@@R@ddd$IfK$[$\$$IfK$$K$L$IfT4\b 06234ab 444445EP3333ddd$IfK$[$\$$K$L$IfT4r0 b06234ab55 555$5.55T$K$L$IfTr0 b06234abddd$IfK$[$\$.52545:5D5N5X55T$K$L$IfTr0 b06234abddd$IfK$[$\$X5\5^5d5h5l5v55<$K$L$IfTr0 b06234abddd$IfK$[$\$v5z5|555555<$K$L$IfTr0 b06234abddd$IfK$[$\$55555555D$K$L$IfTr0 b06234abddd$IfK$[$\$55555555T$K$L$IfTr0 b06234abddd$IfK$[$\$55556666668888999999<<CCCCCCCCCϧϧϚCJOJQJaJ0JCJOJQJaJo(B*CJOJQJaJph3335B*CJ\aJph333j)8B*CJUaJph333jB*CJUaJph333B*CJaJph333B*OJQJaJph333 B*aJph3335B*\aJph333CJaJ CJOJQJ555665$K$L$IfTr0 b06234abddd$IfK$[$\$6689Czqf d,$IfK$ d,$If $d,$Ifa$y$K$L$IfT0b06234abCCCCC<w d,$If7$K$L$IfT634a $d$IfK$a$9$K$L$IfT634aCCCc$$If  @ 0ffff634a0182P. 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