侯巧玲1,2 文一波2 吴迪2 李林宝1(1. 730070; 2. 101102) A/O,。pHDO,。,A/O27-30℃,pH7.5-8.5,DO1.0-1.5mg/L。,。。 StudyontheFactorsAffectingShort-cutNitrificationofHighAmmoniaWastewaterHOUQiao-ling1,2 WENYi-bo2 WUDi2 LILin-bao1(1.SchoolofEnvironmentalandMunicipalEnigneering,LanzhouJiaotongUniversity Lanzhou730070)Abstract A/Oprocessisusedtotreatthesimulatedhighammoniawastewater.Inthecourseofthenitrification,bacteriaandheterotrophicbacteriainthesametreatingsystemcannotgettheoptimumtreatmenteffectssimultaneously.Onthebasisofthewhole-termnitrification,theshort-termnitrificationcanbeimplementedbycontrollingpHvalueandthedissolvedoxygen(DO)andtheaffectingfactorsarealsodis-cussed.Itisshownthatrelativelystableshort-nitrificationcanbeformedundertheconditionsofappropriatetemperature(27-30℃),pHvalue(7.5-8.5)andDOcontent(1.0-1.5mg/L).Avoidinglightisgoodfortheaccumulationofnitrite,butitcannotbecomeaseparateanddominantfactorinthechangesofshort-nitrification.Therealizationofshort-nitrificationistheresultofmultiplefactorsactingtoge-ther.Keywords highammoniawastewater activatedsludge short-cutnitrification ,,(C/N)。。Voets[1]NO2-,。,、、,,。。,。pH,。1 1.1 1。,20L,48L。100%,200%。O,“”,20%。1.2 :;NO2--N:(1-)-;NO3--N:;COD:;DO:Orion805A+;pH:;1 1;2;3;4;5pH;6;7;8;9;10;11;12[2]。1.3 ,NH4CL、,KH2PO4。C/N(2-3)∶1,NaOHNaHCO3pH,。2 2.1 2。48.83mg/L,。A/O·17·20083412December2008 IndustrialSafetyandEnvironmentalProtection2 62d34h42.5h。4.81mg/L,64.13mg/L,7.5%,50%,。,COD3。3 CODCOD,COD,COD。46dCOD97.7%,93.4%,64d99.9%,COD82.7%,,,。2.2 ,,,。、pH、、、[3]。。2.2.1 ,,。(12-14℃)(30℃),[3]。27-30℃。,。2.2.2 84d,11.4%,90d3.0mg/L0.5mg/L,pH7.5-8.5,,1。1 DODO/(mg·L-1)/(mg·L-1)/(mg·L-1)/%/%0.5621.35306.3350.748.31.0612.4745.1592.688.21.5609.8811.8398.192.72.0615.361.2399.863.5 DO,,,。Hunik[4],0.16mg/L0.54mg/L。DO,DO,。DO。2.2.3 pHpH,pH,pH7.0-8.5,6.0-7.5[5]。pH7.5-8.5,pH4。4 pHpH。pH,,,,。pH,,,。pH,。2.2.4 FA、。AbelingSeyfried[6],FA1.0-5.0mg/L,,。Aathonisen[7],10-150mg/L。,。FA[8]。pH,FA32-48mg/L,pHFA。2.2.5 ,(DO·18·3mg/L),pH6.0-7.0,,。,。1.5-2mg/L,pH7.5-8.5,O。,5。5 、,40.7%96.5%,85.6%,,。。DOpH,,。89.8%,,80.5%。,。3 (1)A/O,,,。 (2)DO(1.0-1.5mg/L)、pH(7.5-8.5)。。。(3)COD。,COD85%。[1]VoetsJP,etal.Removalofnitrogenfromhighlynitrogenouswastewater.JWPCF,1975,47:394-398.[2]《》..3.:,1989.[3]..:,2006.46-51.[4]HunikJH,TramperJ,WijffelsRH.Astrategytoscaleupnitrificationprocesseswithimmobilizedcellsofnitrosomonaseuropaeaandnitrobacteragilis.BioprocessEng,1994(11):73-82.[5]HellingaC,SchellenA,MnlderJW,etal.TheSharonprocess:anin-novativemethodfornitrogenremovalfromammoniummrichwater.WaterScienceandTechnology,1998,37(9):135-142.[6]AbelingV,SeyfriedCF.Anaerobic-aerobictreatmentofhigh-strengthammoniumwastewaternitrificationremovalvianitrite.WatSciTech,1992,26(5/6):1007-1015.[7]AnthonisenAC,LoehrRC,PrakasamTBS,etal.Inhibitionofnitrifi-cationofammoniaandnitrousacid.JournalofWaterPollutionControlFed,1976,48(5):835-852.[8],,,.A/O.,2002,12(18):5-8. 侯巧玲,1978年生,女,四川阆中人,2005级硕士研究生,助理工程师,研究方向:水污染控制工程。(:2007-09-30) 自今年8月中旬以来,丰山铜业公司对井下原有的700余盏100W白炽灯进行了更换,安装上了305盏36W节能灯,井下照明灯减少一半多后,照明亮度不但没有降低,反而比原有提高3倍以上,不仅有效地节约了电量,而且大大提高了井下安全生产系数。这是该公司为开展节能降耗工作,加强安全管理力度而取得的成果。针对井下照明灯具寿命短、亮度低、安全隐患多、能耗大等缺陷,该公司准备着手进行更换。为使更换的节能灯投入成本小、产出效果大,该公司实行精打细算的方法,积极与上海光博源、深圳海洋王、通明电器、丰沛照明4家公司进行联系,分别采用在井下少量安装的方法进行试验,试验的指标主要有2项:光照度和能源消耗量。经过为期2个月的试验,最终选定美国品牌丰沛照明公司的节能灯。同时,该公司还积极与厂家签订协议,采用免费使用,节约的电量折算现金提成70%交还厂家的方法,实现了该公司零投资、合作双方共同受益的“双赢”目标。目前,该公司井下安装的节能灯使用性能优良,不仅具有照明亮度高,检修、维护方便,成本低、安全、环保等特点,而且年可节约用电51.4万kW·h。(何永进)·19·