沸石吸附焦化废水中氨氮的研究张文成

:2005-03-280,。,,:Cs+Rb+K+NH4+Ba2+Ca2+Na+Fe3+A13+Mg2+Li+。[1]()(NH4+),(50mg/L),,。300mg/L,。[2]、、、、SCN—,。250～300mg/L,,,。11.1:20～40();:200。EnergyEnvironmentalProtectionVol.19,No.5Oct.,2005195200510张文成(宝钢集团梅山公司技术中心,江苏南京210039):利用沸石对氨氮的选择性吸附去除焦化废水中的氨氮,对不同粒度沸石、不同沸石投加量去除模拟废水和焦化废水进行了研究,结果表明,沸石对焦化废水中的氨氮有很强的选择吸附性;焦化废水中其它离子会降低沸石吸附氨氮的能力;粒度越细,沸石对焦化废水氨氮的去除速度越快;沸石吸附焦化废水等温线可用朗谬尔公式和费兰德利希公式来描述。:沸石;吸附;氨氮;焦化废水:X703:A:1006-8759(2005)05-0009-03STUDYOFAMMONIANITROGENREMOVALFROMTHECOKEWASTEWATERBYZEOLITEADSORPTIONZHANGWen-cheng(ScienceandTechnologyDepartment,BaosteelGroupShanghaiMeishanCorp.LTD,Nanjing210039,China)Abstract:Usingthefunctionofselectiveionexchangeofthezeolitetoremovepartlytheammonia-nitrogenindifferentsizeanddifferentamountzeoliteforartificialsolutionandcokewastewater.Thesolutionasfollows:Zeolitehasgreatselectiveexchangeabilitytoremovalammonia-nitrogeninthecokewastewater.Thezeolitecapacityofionexchangetothesewageisslightlylowerbecauseoftheinfluenceofotherionsincokewastewater.Themoresmallofthezeolitethemorequickofadsorptionammonia-nitrogen.TheisothermofzeoliteadsorbcokewastewatercanbedescribewithLangmuirfunctionorFlandelyfunction.Keywords:zeolite;adsorption;ammonia-nitrogen;cokewastewater·10·张文成沸石吸附焦化废水中氨氮的研究:;:。1.2721()。1.3:5,,5,300r/min1min,,50r/min4min,,10min,、,。:5,,5,300r/min1min,12h,。:,5%NaCl5,300r/min1min,12h,。1.4:。22.11。1,15～30min,,,。。,,。2.23、4。,,30min,,20mg/L。,,-OH、-NH2,,(下转第15页),,。[3]2.34,,,,,。,,,,,。,,,。2.4,。,,,,。[1]6,。7,q=0.08245C/(1+0.00672C),0.9997;8,q=0.1329×C0.8011,0.9989。,,。,,;,;;,。,,。,,。2.585%NaCl,,NaCl,,100mL/g。NaCl。195·11·1PACPACABCDE3.484.425.486.193.374.332(20℃)/%/%/%pH(1%)/%≥1.18≥9.045～85≤0.53.5～5.0≤3.51.369.375.60.264.10.2。7,PAC,,。Al2O32～5mg/L,Al2O35～8mg/L。,PAC,。,,PAC,。2.7PACPACPAC。16℃,140NTU、pH=7。71000mL,3mLPAC,。PAC1。1,5,DPAC,。,PAC,,。,。2.8PAC《GB15892-1995》,2。3(1)———(PAC),,、、,,。(2):HCl3.3～3.0∶1;3.0～3.5h;60～65℃;1～1.5h。(3)70%～80%,。(4)Al2O39%,45%～85%,。:[1],.[J].,2003,23(3):5.[2],,.[J].,2003,34(6):741～743.[3]GB15892-1995[S],.[4].[J].,1995,(4):34.(上接第11页)毛欣等用废分子筛制备聚合氯化铝工艺及其絮凝性能研究·15·4,,,,,,。,[4]。:[1].[J].,2002,3(11),47～49.[2].[M].:,2000,540～541.[3].SBR()[D].,:,2002.[4].[J].,2003,4(9),89～91.