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1、Chemistry Lab Center环测专业英语作业环测1101Chemistry Lab Center环化系试验室Chemistry Lab Center主要试验仪器Chemistry Lab Center高压/效液相色谱仪HighPressure/PerformanceLiquidChromatography(HPLC)Chemistry Lab Center气相色谱仪GasChromatograph(GC)Chemistry Lab Center原子吸取光谱仪AtomicAbsorptionSpectroscopy(AAS)Chemistry Lab Center紫外-可见光分光光度
2、计UV-VisibleSpectrophotometer(UV-Vis)Chemistry Lab Center可见光分光光度计VisibleSpectrophotometer(UV-Vis)Chemistry Lab Center电子天平electronicbalanceChemistry Lab Center大气采样器AirsamplerChemistry Lab Center仪器结构仪器结构图图1 361CRT1 361CRT原子吸取分光光度计原子吸取分光光度计 Chemistry Lab Center图图2 原子吸取分光光度计示意图原子吸取分光光度计示意图光源光源原子化系统原子化系统分
3、光分光系统系统检测显检测显示系统示系统空心阴极灯空心阴极灯反反射射镜镜旋转斩光器旋转斩光器废液废液光束光束反射镜反射镜半反射镜半反射镜狭缝狭缝反反射射镜镜吸光度吸光度空气空气光栅光栅原子吸取光谱仪主要部件原子吸取光谱仪主要部件Chemistry Lab Center原子吸取光谱仪器光源:Lightsource原子化器:atomizer单色器:monochromator检测器:detectorChemistry Lab CenterMajorcomponentsofanatomicabsorptionspectrometer原子吸取光谱仪的主要组成部分LightsourceMonochromat
4、orDetectorAmplifierReadoutFuel inputAir inputSample containerFlameChemistry Lab Center原子化器(火焰原子化器)组成雾化器雾化器:atomizer喷化室喷化室:spraychamber供气系统供气系统:thegassupplysystem燃烧器燃烧器:theburnerChemistry Lab Center空心阴极灯工作原理图图4 4 空心阴极灯结构示意图空心阴极灯结构示意图灯座:灯座:Lampholder:阳极:阳极:Anode空心阴极:空心阴极:Hollow cathode惰性气体:惰性气体:Inert
5、gas石英窗:石英窗:Quartz windowChemistry Lab Center锐线光源电源:Powersource,光窗:lightwindow阳极:Anode,阴极:Cathode,光输出:thelightoutput空心阴极灯Chemistry Lab Center图图5 5 空心阴极工作原理空心阴极工作原理Chemistry Lab Center原子化系统火焰原子化器火焰原子化器雾化器:雾化器:atomizer、喷化室:喷化室:spray chamber 供气系统:供气系统:the gas supply system燃烧器:燃烧器:the burner光线:光线:Light空气
6、:空气:Air废液:废液:liquid Waste试样:试样:Sample图图6 6 雾化器结构示意图雾化器结构示意图Chemistry Lab Center预混合型火焰原子化器示意图预预混合型火焰原子化器示意图混合型火焰原子化器示意图试样液:Samplesolution喷雾器:Sprayer助燃气:Helpgas撞击球:impactbead雾化室:atomizingchamber燃烧室:Combustionchamber扰液器:Disturbedliquid火焰:FlameChemistry Lab Center图图7 7 雾化室工作原理雾化室工作原理Chemistry Lab Center
7、无火焰原子化器示意图Flameatomizerdiagram吹扫气体:Purgegas光路:Opticalpath样品:Sample石墨管:Graphitetube内冷水:WithinthecoldwaterChemistry Lab Center石墨炉升温程序干燥干燥:drying灰化灰化:ashing原子化原子化:atomization净化净化:purificationChemistry Lab Center单色器示意图单色器示意图 入射狭缝入射狭缝:the entrance slit,光栅光栅:grating凹面放射镜凹面放射镜:concave launch mirror 出射狭缝出射狭
8、缝:exit slitChemistry Lab Center气相色谱仪的组成部分(1)载气系统:包括气源、气体净化、气体流速限制和测量(2)进样系统:包括进样器、汽化室(将液体样品瞬间汽化为蒸气)(3)色谱柱和柱温:包括恒温限制装置(将多组分样品分别为单个)(4)检测系统:包括检测器,控温装置(5)记录系统:包括放大器、记录仪、或数据处理装置、工作站Chemistry Lab Center气相色谱仪Chemistry Lab CenterChemistry Lab Center空气Air,吸泵suctionpumps,电磁阀solenoidvalves,色谱柱columns,传感器senso
9、rs,排气exhaustgas,气样gassamplesChemistry Lab Center原污水Rawsewage,粗格栅coarsebarscreen,进水泵房inletpumpingstations,细格栅siftingscreen,钟式沉砂池thebell-typegritchamber,剂量渠doseDrainage,奥贝尔氧化沟Aubertoxidationditch,二次沉淀池secondarysedimentationtanks,回流污泥Thereturnsludge,污泥泵站sludgepumpingstation,污泥脱水机房sludgedewateringroom,污
10、泥浓缩池sludgethickener浓缩池排泥泵房concentratedpoolofsludgepumpingstation,泥饼外运,mudcakeSinotransChemistry Lab Center城市污水:Urbansewage曝气沉沙池:Aerationsettlingpool粗格栅:coarsebarscreen巴式计量池:Bar-style/asteurization/meterpool进水泵房:Waterpumpingstation初次沉淀池:Primarysettlingtank污泥浓缩池Sludgethickener初沉生污泥:Primarysedimentatio
11、nrawsludge污泥回流泵房Sludgerefluxpumpingstation污泥脱水间dehydrationofsludgeroom改型生物处理池Modifiedbiologicaltreatmentpond二次沉淀池SecondarysedimentationtankChemistry Lab CenterSewage treatment processsiftingscreencoarsebarscreendosimetry/dosedesiltingbasinMixingtankBiochemicaltreatmenttankSecondarysedimentationtankArtificialponddehydrationofsludgeroomSewageresourceutilizationFG-21WF-12OverflowdischargedintotheYellowRiverTailwaterbackflowSolidWasteSinotransDewateredsludgeSewageSolidWasteSinotransChemistry Lab Center污水处理厂工艺流程图