Xov xwm
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Tshiab tuaj txog: Optical yaj oxygen thov ntsuas LH-DO2M (V11)
LH-DO2M (V11) portable dissolved oxygen meter txais fluorescence yaj oxygen ntsuas tshuab, tsis haus oxygen, thiab tsis cuam tshuam los ntawm cov yam ntxwv xws li cov qauv khiav ceev, nplawm ib puag ncig, tshuaj lom neeg, thiab lwm yam. Nws muaj peev xwm tiv thaiv kev cuam tshuam thiab yog multi-func...Nyeem ntxiv -
Xov xwm zoo: Winning bid! Lianhua tau txais kev txiav txim ntawm 40 cov khoom ntsuas dej zoo los ntawm tsoomfwv cov chaw haujlwm
Xov xwm zoo: Winning bid! Lianhua yeej qhov kev sib tw rau 40 cov khoom siv ntsuas dej zoo rau kev tswj hwm kev cai lij choj ecological hauv Zhengzhou City, Henan Province, Suav! Xyoo tshiab, huab cua tshiab, hmoov zoo tuaj rau xyoo ntawm zaj. Tsis ntev los no, xov xwm zoo tuaj ntawm Lianhua ...Nyeem ntxiv -
Kev taw qhia txog kev siv cov tshuab ntsuas dej zoo
Cov hauv qab no yog ib qho kev qhia txog cov qauv kev sim: 1. Kev soj ntsuam cov cuab yeej siv rau cov pa phem hauv cov dej tsis huv Kev tshawb nrhiav dej paug pib nrog Hg, Cd, cyanide, phenol, Cr6+, thiab lwm yam, thiab feem ntau yog ntsuas los ntawm spectrophotometric. Raws li kev tiv thaiv ib puag ncig ua haujlwm tob zuj zus thiab saib xyuas kev pabcuam ...Nyeem ntxiv -
Cov teebmeem ntawm COD, ammonia nitrogen, tag nrho phosphorus thiab tag nrho nitrogen ntawm cov dej zoo
COD, ammonia nitrogen, tag nrho phosphorus thiab tag nrho cov nitrogen yog ib qho kev ua paug loj hauv cov dej. Lawv qhov cuam tshuam rau dej zoo tuaj yeem txheeb xyuas los ntawm ntau yam. Ua ntej tshaj plaws, COD yog qhov qhia txog cov ntsiab lus ntawm cov organic teeb meem hauv dej, uas tuaj yeem cuam tshuam cov pa phem ntawm organi ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev kuaj xyuas dej zoo hauv cov chaw kho dej phwj feem kaum ob
62.Dab tsi yog txoj hauv kev los ntsuas cyanide? Feem ntau siv txoj kev tsom xam rau cyanide yog volumetric titration thiab spectrophotometric. GB7486-87 thiab GB7487-87 feem qhia txog kev txiav txim siab ntawm tag nrho cov cyanide thiab cyanide. Cov txheej txheem volumetric titration yog haum rau cov kws tshuaj ntsuam ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev ntsuas dej zoo hauv cov chaw kho dej phwj feem kaum ib
56.Dab tsi yog txoj hauv kev rau kev ntsuas roj av? Petroleum yog ib qho kev sib xyaw ua ke ntawm alkanes, cycloalkanes, muaj ntxhiab hydrocarbons, unsaturated hydrocarbons thiab me me ntawm sulfur thiab nitrogen oxides. Hauv cov qauv dej zoo, roj av tau teev tseg raws li qhov ntsuas toxicological a ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev kuaj xyuas dej zoo hauv cov chaw kho dej phwj feem kaum
51. Dab tsi yog cov cim qhia ntau yam uas qhia txog cov tshuaj lom thiab cov organic teeb meem hauv dej? Tsuas yog qee qhov me me ntawm cov tshuaj lom thiab teeb meem organic sib txuas hauv cov dej phwj tuaj (xws li cov phenols tsis zoo, thiab lwm yam), feem ntau lawv nyuaj rau biodegrade thiab ua rau muaj kev phom sij rau tib neeg lub cev, xws li ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev kuaj xyuas dej zoo hauv cov chaw kho dej phwj feem cuaj
46.Dab tsi yog yaj oxygen? Dissolved oxygen DO (abbreviation for Dissolved Oxygen in English) sawv cev rau tus nqi ntawm molecular oxygen yaj hauv dej, thiab chav tsev yog mg / L. Cov ntsiab lus saturated ntawm yaj cov pa oxygen hauv dej yog cuam tshuam nrog dej kub, atmospheric siab thiab chem ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev ntsuas dej zoo hauv cov chaw kho dej phwj feem yim
43. Kev ceev faj txog kev siv iav electrodes yog dab tsi? ⑴Qhov zero-muaj peev xwm pH tus nqi ntawm cov iav electrode yuav tsum nyob rau hauv thaj tsam ntawm qhov chaw tswj hwm ntawm qhov sib txuam acidimeter, thiab nws yuav tsum tsis txhob siv rau hauv cov kev daws teeb meem tsis muaj dej. Thaum lub iav electrode siv thawj zaug los yog kuv ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev ntsuas dej zoo hauv cov chaw kho dej phwj feem xya
39.Dab tsi yog dej acidity thiab alkalinity? Lub acidity ntawm dej yog hais txog tus nqi ntawm cov khoom muaj nyob rau hauv cov dej uas yuav neutralize lub hauv paus muaj zog. Muaj peb hom tshuaj uas tsim acidity: muaj zog acids uas muaj peev xwm dissociate H + (xws li HCl, H2SO4), tsis muaj zog acids uas pa ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev kuaj xyuas dej zoo hauv cov chaw kho dej phwj feem 6
35.Dab tsi yog dej turbidity? Dej turbidity yog ib qho qhia txog lub teeb kis ntawm cov qauv dej. Nws yog vim qhov me me inorganic thiab organic teeb meem thiab lwm yam teeb meem xws li sediment, av nplaum, microorganisms thiab lwm yam khoom raug tshem tawm hauv dej uas ua rau lub teeb hla dhau ...Nyeem ntxiv -
Cov ntsiab lus tseem ceeb rau kev ntsuas dej zoo hauv cov chaw kho dej phwj feem tsib
31.Dab tsi yog suspended solids? Suspended solids SS kuj hu ua cov khoom tsis lim. Txoj kev ntsuas yog lim cov qauv dej nrog 0.45μm lim membrane thiab tom qab ntawd evaporate thiab qhuav cov lim seem ntawm 103oC ~ 105oC. Volatile suspended solids VSS hais txog qhov loj ntawm sus ...Nyeem ntxiv
