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1、考研专业课环境工程课堂笔记Solidpollutants:thepresenceofpollutantsinwaterinsolidform,ineludingthesuspendedstate,thestateofthecolloidandthestateofdissolution.Suspendedmatter:theparticlesizeisbelowlnm,whichismainlyasolidsubstancewithlowmolecularorionstate・Turbidity,watercont
2、ainingclay,silt,fineorganicmatter,inorganicmatter,planktonandothersuspendedmatterandcolloidmaterialcanmakethewaterturbidandtendercertainturbidity,waterqualityanalysis,11watercontaining1mgsio2ofturbidityasastandardturbidityunit,hereinafterreferredtoas1degree・C
3、olourandcolor:coloristhetypeofcolorinwastewater,usuallydescribedinwords・Chromaticityreferstotheextentofthecolorshownbythewastewater・Twowaysofrepresentingchromaticity:theplatinumcobaltstandardcolorimetricmethod:specifiesthatthecolorofPtlmgandCoO.5mginILwateris
4、onedegree・Dilutemultiplemethod:dilutethewastewaterbyacertainamountanddiluteittothedilutemultipleofthecolor.Biochemicaloxygendemand(BOD):referstothetemperature,timearegivenconditions,microbesintheprocessofdecomposition,oxidationoforganicmatterinwater,dissolved
5、oxygenconsumed.Chemicaloxygendemand(COD)COD:referstoundercertainconditions,withstrongoxidizeroxygenconsumptionbyoxidationoforganicmatterinwastewater,commonlyusedoxidantpotassiumpermanganateandpotassiumdichromate・TotaloxygendemandTOD:referstothespecialburner,p
6、latinumascatalyst,intemperaturesof900degreestomakeacertainamount,watervaporizationoforganicmatterincombustion,andthedeterminationofoxygenincarriergasreduction,asanorganicoxygenoxidationneedcompletely.TotalorganiccarbonTOC:thetotalamountoforganiccarboninwaters
7、amplesismeasuredbycombustionmethodtoreflectthetotalamountoforganicmatterinthewater・Organicnitrogenisawaterqualityindicatorthatreflectsthetotalamountofnitrogenorganicmatter,includingproteininwater,aminoacidandurea・ItcanbedecomposedintoNH4+,NH3,N03N02-etc.,NH4+
8、,NH3Forammonianitrogen,N02-nitrite,N03-nitricacidnitrogen.TotalnitrogenTN:awaterqualityindicatorthatincludeseverythingfromorganicnitrogentonitrogennitrate・Classificationofwastewater:accor
