PDAC改性粉煤灰处理印染废水的试验研究马玉洁

34820098ENVIRONMENTALSCIENCEANDMANAGEMENTVol.34No.8Aug.2009:2009-02-16:(1985-),,,,:。:1674-6139(2009)08-0072-03PDAC马玉洁,胡开林,王正兴(,650093)　:采用高分子絮凝剂聚二甲基二烯丙基氯化铵(PDAC)和粉煤灰为原料,利用水溶液吸附的方法合成改性粉煤灰,并应用于印染废水的处理。通过正交试验和单因素影响试验,考察了改性的最佳工艺参数。结果表明,在吸附反应时间2h,反应温度40℃,改性剂PDAC浓度50g/L,pH值3.4的最佳条件下,改性粉煤灰对废水色度和COD的去除效果最好。:PDAC;改性粉煤灰;印染废水;脱色:X703.1:ATheExperimentalStudyontheTreatmentofDyeingWastewaterwithFlyAshModifiedbyPDACMaYujie,HuKailin,WangZhengxing(FacultyofEnvironmentScienceandEngineering,KunmingUniversityofScienceandTechnology,Kunming650093,China)Abstract:TheuseofPDACandflyashasrawmaterial,PDAC-flyashwaspreparedbyusingaqueousadsorptionmethod,themodifiedflyashwassynthesizedandappliedindyeingwastewater.Theoptimalparametersforthemodificationwereinvestiga-tedthroughorthogonaltestandsingle-pilottest.Theresultsshowthattheoptimalmodifyingparametersareasfollows:reactiontime2h,reactiontemperature40℃,PDACconcentrationof50g/L,pH3.4,undertheseconditions,themodifiedflyashhasthebestremovaleffectonwastewatercolorandCOD.Keywords:PDAC;modifiedflyash;dyeingwastewater;colorremoval　　,35%[1]。、、、、[2],、、、,,,、。,,。PDAC,,pH,。,,,,,、、[3]。,PDAC,,,。1　1.1　,1。1　[4]SiO2Al2O3Fe2O3CaOMgOK2ONa2OSO3/%45.4730.909.933.021.550.580.070.318.17　　(PDAC):,pH5～7,1.04g/ml。:,,,pH9.71,COD806.4mg/L。·72·34820098·PDACVol.34No.8Aug.20091.2　100℃,120,50g100mlPDAC,40℃～70℃,,、120℃,120,。PDAC()。1.3　,,PDAC。①100mL250ml,2g,30min60min,,,。:T=(1-A/A0)×100%:A0———;A———。②COD:。③:,388nm。2　2.1　,,,4、4,2。L16(45),4,3。2　A(℃)B(h)CPDAC(g/L)DpH14013022501.5406360250104702.560123　A(℃)B(h)CPDAC(g/L)DpH(%)1A1B1C1D163.682A1B2C2D286.533A1B3C3D392.644A1B4C4D473.725A2B1C2D354.52()3　A(℃)B(h)CPDAC(g/L)DpH(%)6A2B2C1D490.847A2B3C4D173.238A2B4C3D292.649A3B1C3D492.7510A3B2C4D392.5811A3B3C1D286.712A3B4C2D187.3513A4B1C4D292.5314A4B2C3D189.1515A4B3C2D443.9516A4B4C1D348.58T179.14375.8772.4578.352T277.80889.77568.08889.6T389.84574.1391.79572.08T468.55275.57383.01575.31521.29315.64523.70717.52　　3,PDAC,;,PDAC;PDACpH,,PDACpH,2h,pHPDAC3.4。2.2　,。PDAC。2.2.1　PDAC浓度的影响40℃,2h,PDACpH3.4,PDAC,1、2PDACCOD。1,PDAC,,PDAC40g/L,PDACPDAC,,,90%～95%。2,CODPDAC,。PDAC50g/LCOD,41.78%,CODPDAC。COD,PDAC50g/L。·73·34820098·PDACVol.34No.8Aug.20091　PDAC2　PDACCOD2.2.2　反应温度的影响:PDAC40g/L,2h,PDACpH3.4。3、4,,COD,,,91%～93%,COD25%～40%。40℃,COD,92.37%39.4%。,,,,,40℃。3　3　(1),:PDAC50g/L,4　COD40℃,2h,PDACpH3.4。,PDAC。(2),。,,,,Si、Al,[5]。PDAC,PDAC,PDAC,,,,。(3)PDAC,,PDACpH,,,,pH,,pH。:[1]刘发现,金东日,王清珊,曹雪玲.改性粉煤灰处理印染废水的研究[J].粉煤灰综合治理,2006(6):19-21.[2]张跃军,邢云杰,刘瑛,王晶,张晋华.阳离子絮凝剂PDA用于印染废水处理的研究[J].工业水处理,2003,23(3):23-25.[3]刘旭东,胡桂玲,解英丽,王京城.改性粉煤灰处理印染废水的试验研究[J].工业安全与环保,2008,34(4):14-16.[4]胡朝帅.粉煤灰沸石的合成及处理焦化废水的研究[D].昆明:昆明理工大学,2008:17.[5]肖杰,赖喜德,周卿.PDMDAAC改性粉煤灰脱色性能研究[J].西华大学学报(自然科学版),2005,24(4):50-52.·74·