Video: Dab tsi yog qhov tsawg kawg nkaus txwv rau cov chlorine seem hauv cov dej haus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov siab kawg tso cai WHO tus nqi pub dawb chlorine residual hauv dej haus yog 5 mg/l. Cov yam tsawg kawg nkaus pom zoo WHO tus nqi pub dawb chlorine residual hauv kho dej haus yog 0.2 mg/l. CDC pom zoo kom tsis pub tshaj 2.0 mg / L vim muaj kev txhawj xeeb txog saj, thiab chlorine residual decays nyob rau hauv lub sij hawm dej.
Tom qab ntawd, qhov kev lees paub ntawm chlorine hauv dej haus yog dab tsi?
Cov tshuaj chlorine mus txog 4 milligrams ib liter (mg / L los yog 4 qhov chaw ib lab ( ppm ua ) raug suav hais tias muaj kev nyab xeeb hauv dej haus.
Qhov thib ob, yuav ua li cas yog tias cov tshuaj chlorine tsawg dhau hauv cov dej haus? Cov phom sij ntawm Chlorine hauv koj Haus dej Mob plab, ntuav, thiab raws plab tuaj yeem yog qhov cuam tshuam ntawm kev noj tshuaj chlorine , thiab nws tuaj yeem ua rau tawv nqaij qhuav, khaus khaus. Mob hnyav tshuaj chlorine Kev lom neeg tuaj yeem yog qhov phem dua - ib koob tshuaj tseem ceeb ntawm cov kua tshuaj chlorine tuaj yeem yog heev lom thiab txawm tuag rau tib neeg.
Kuj nug, dab tsi yog qhov zoo chlorine residual?
Rau ib txwm siv hauv tsev, residual chlorine theem ntawm qhov chaw uas tus neeg siv khoom sau cov dej yuav tsum nyob nruab nrab ntawm 0.2 thiab 0.5 mg / l. Cov qib siab dua yuav nyob ze rau qhov chaw tshuaj tua kab mob thiab qib qis ntawm qhov deb ntawm cov khoom siv network.
Koj ntsuas cov tshuaj chlorine seem hauv dej li cas?
Feem ntau xeem yog lub dpd (diethyl paraphenylene diamine) qhia xeem , siv tus sib piv. Qhov no xeem yog txoj kev ceev tshaj plaws thiab yooj yim tshaj plaws rau kev sim chlorine residual . Nrog qhov no xeem , ib ntsiav tshuaj reagent yog ntxiv rau cov qauv ntawm dej , xim liab.
Pom zoo:
Dab tsi yog qhov ntsuas qhov tsawg kawg nkaus?
❑ “Txoj kev ntsuas qhov txwv (MDL) yog. txhais raws li qhov tsawg kawg nkaus concentration ntawm a. khoom uas ntsuas tau thiab. qhia nrog 99% kev ntseeg siab tias cov. analytes concentration yog ntau tshaj xoom
Qhov siab tshaj plaws thiab qhov tsawg kawg nkaus hauv lej yog dab tsi?
Hauv kev ua lej, qhov siab tshaj plaws thiab qhov tsawg kawg nkaus ntawm qhov muaj nuj nqi yog qhov loj tshaj plaws thiab qhov tsawg tshaj plaws uas qhov kev ua haujlwm yuav siv ntawm ib qho chaw. Yam tsawg kawg txhais tau tias qhov tsawg tshaj plaws koj tuaj yeem ua tau ib yam dab tsi
Qhov siab tshaj plaws lossis qhov tsawg kawg nkaus ntawm parabola yog dab tsi?
Vertical parabolas muab cov ntaub ntawv tseem ceeb: Thaum lub parabola qhib, lub vertex yog qhov qis tshaj plaws ntawm daim duab - hu ua qhov tsawg kawg nkaus, lossis min. Thaum lub parabola qhib, lub vertex yog qhov siab tshaj plaws ntawm daim duab - hu ua themaximum, lossis max
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi txwv qhov tsawg kawg nkaus ntawm lub xov tooj ntawm tes?
Thaj tsam thaj tsam rau qhov ntim piv