AO工艺同步聚合氯化铝辅助除磷应用研究鄂宏

鄂宏崔鑫：在深入了解除磷机理的基础上，通过实验室小试和生产性试验，研究AO工艺同步PAC的除磷效果，配制浓度对除磷效果的影响，投药量与除磷效率的关系，得出了PAC投加量估算公式，并进行了除磷成本核算。结果表明，AO工艺同步PAC除磷具有良好的除磷效果和运行稳定性；PAC适宜的配制浓度为2%~4%；PAC除磷吨水成本为0.06~0.15元/m3。PAC；化学辅助除磷；AO工艺；估算公式；成本核算AbstractOnthebasisofdeeplyunderstandofdephosphorization'smechanism,theestimationformulaforthedosageofPACwasobtainedandthecostaccountingwascarriedoutthroughthelaboratoryandproductiontest.Inthisprocedurethedephosphorization'seffectofPACprocesssynchronizationinAOprocesswasresearched,atthesametimetheeffectofpreparationconcentrationonphosphorremovalandtherelationshipbetweenthedosageanddephosphorization'sefficiencywasalsostudied.Theconclusionindicate:thePACprocesssynchronizationinAOprocesshaswonderfuleffectivenessandperformsstablyonphosphorremoval;theappropriatepreparationconcentrationofPACisbetween2%~4%;thecostofPACondephosphorizationis0.06~0.15RMBpertonwastewater.KeywordsPACPolymerizationaluminumchloride;chemicalassistantindephosphorization;AOprocess;estimationformula;costaccounting.X505A1674-1021201508-0037-042015－01－072015-08-12。。。。。《》GB18918-2002、1。2008—200999。2013160。AO。DO、NOx、2AO3。。PACPACPAC。PO43+Al3+4。Al3++HnPO4(n-3)-→A1PO4↓+nH+。Elisabeth5。Boisseret6。377。。3、、。70%2。。。8。31Al3+PO43+23。A13+AlOH+A1nOHm(3n-m)+n1m3n。ξ、9。、。3.0m3/d《》GB18918－2002BAO。1。1。1TP。C/P。、、10。、。PAC、、、11。PAC。PACAl2O328%30%PAC1min2min30minTPTPTP。4.1.1PACPAC2。2PAC2%~4%TP。10β4。β2~32%~3%。PAC12Me3++HCO3-→MeOH3↓+CO2↑Me3++H2O→MeOH3↓+H+PACPAC。AOCODTP2506067~16030~404.01.01.9~2.91.8~2.7mg/LPACPAC/%/mgPAC·L-1TP/mg·L-1/mg·L-1/%-2.38--1601.091.29542600.941.44613600.781.60674600.941.44616600.971.4159384.1.2PAC13PACPAC2。14PACPAC60mg/LTP60%。PAC3。2～3PAC20~60mg/LTPPAC60%。10%~30%2。TP60%。。PACAl2O328%30%。PAC4。4、。PACTPPAC0~60mg/L。PACY=0.01XYTP%XPACmgPAC/L。。4.2.134.1。34.1.2PAC。TPPACTP。。4.2.2、、、13。PAC/mg·L-1/%1005000200400600PAC/mg·L-1/%/mg·L-11.61.41.21.00.80.60.40.20.0100.0090.0080.0070.0060.0050.0040.0030.0020.0010.000.0020406080100120140160180200TPTPTPPAC/%80706050403020100-1020406080PAC/mgPAC·L-1y=0.0115x+0.0194R2=0.9941y=0.0099x+0.026R2=0.99430%28%28%30%TPTP/%TP2.35157.45600.782.10152.38550.782.20154.55550.981.96148.98500.872.78164.03650.992.11152.61550.762.01150.25500.89mg/L3924000m3/dTP1.2~2.5mg/LPAC2300/t2.1kW0.56/kW·h10000/a。PAC4。4TPPAC0.06~0.15。15PAC0.198/m3140.20～0.25/m330%。1PAC＞PAFC＞＞＞A0.1~0.13/m3B。。1AOPAC。PAC、、、、。2PAC2%~4%。PAC20~60mg/LTPTP=0.01×PACmgPAC/L。3AOPACTP0.06~0.15。Elisabeth.PhosphorousRemovalfromWastewatersExperi-mentalandTheoreticalSupportforAlternativeMechanismsJ.Wat.Res.1997312328-338．Jean-PhilippeBoisseret.PhosphateAdsorptioninflocculationProcessofAluminumSulphateandPoly-aluminum-silicate-suphateJ.Wat.Res.19973181939-1946．PACTP/mg·L-1TP/mg·L-1TP/%/mgPAC·L-1/t/·a-1)/·a-1)/·a-1)/·a-1)/1.20.92525.000.6050370010302100005240020.061.50.94040.000.9680592010302100008262220.091.70.94750.001.201007400103021000010277020.121.90.95355.001.321108140103021000011284420.132.10.95760.001.441208880103021000012291820.142.30.96160.001.441208880103021000012291820.142.50.96465.001.561309620103021000013299220.1540