200595-185-1r2rDOI:10.13427/j.cnki.njyi.2005.05.073200595-186-1r2r1r1r1r2r1r2r200595-187-1r2rExperimentationStudyofWastewaterTreatmentFromAzodicarbonamidewiththeProcessofA/DAT-IATYANWei-donga,SHIWei-dongb,MIAOYing-qia,WANGZhi-guoa,ZOUXiao-linga(JiangsuUniversitya.DepartmentofBiologicalandEnvironmentalEngineering;b.FluidCenter,ZhenJiang212013,China)AbstractInthispaper,thehighconcentrationwastewaterfromazodicarbonamidewastreatedbyA/DAT-IATprocess.ThestudyshowsthattheremovingofNH3-Ncanreach96.3%,whentempe-ratureis28,pH’svalueisbetween7.4and7.8,C/Nis5,r1is400%,r2is250%,andtheloadofNH3-NratherinfluencetheremovalrateofNH3-N,it’svalueshouldlessthan0.12NH3-N/m3.d.Keywordsenvironmentengineeringscience;A/DAT-IATprocess;experiment;azodicarbonamide;biologicalnitrogenremoval;wastewatertreatment184ANewMeasureofFastDetermineWaterContentofMaterielWANGXiu-liJIAGui-ru(CollegeofScience,ChinaAgriculturalUniversity,Beijing100083,China)AbstractItisalwaysanimportantproblemthatdetermineswatercontentofmaterialaccuratelyandquicklybecauseofitsstrangequalities.Basedontheprinciplesofselectiveabsorptionofmicrowaveandblackbodyradiation,anewmethodisproposedforfastmeasurementofwatercontent?microwaveheatingandinfraredmeasurement.Measurementofloamysoilandsandsoilareintroducedimportantlyinthispaper,wehaveoptimizedtheirmetricalconditionsinexperimentation,andgottherelationofwatercontentanddifferenceintemperature.Besides,comparedwiththemethodofnationalstandard,itsstandarderrorislessthan0.3%.ithaspreferablerepeatabilityandveracity.Theportableinstrumentcanbemadebasedonthismethod;moreover,italsocanrealizeon-linemeasurementandcontrolforwatercontent.Keywordsmachineryindustry;watercontent;experiment;microwave;infrared;temperature;measurement