Cov tshuaj tua kab mob chlorine yog cov tshuaj tua kab mob uas nquag siv thiab siv dav hauv cov txheej txheem tshuaj tua kab mob ntawm cov kais dej, cov pas dej da dej, cov tais diav, thiab lwm yam. Txawm li cas los xij, cov tshuaj tua kab mob chlorine yuav tsim ntau yam khoom los ntawm kev siv tshuaj tua kab mob, yog li kev nyab xeeb ntawm dej zoo tom qab. Cov tshuaj tua kab mob chlorination tau nyiam ntau ntxiv. Cov ntsiab lus chlorine residual yog qhov taw qhia tseem ceeb rau kev ntsuas qhov ua tau zoo ntawm cov tshuaj tua kab mob hauv dej.
Txhawm rau kom tsis txhob muaj cov kab mob rov qab, cov kab mob thiab lwm yam kab mob hauv dej, tom qab cov dej tau muab tshuaj tua kab mob chlorine-muaj tshuaj tua kab mob rau lub sijhawm, yuav tsum muaj cov tshuaj chlorine uas tsim nyog hauv dej kom ntseeg tau txuas ntxiv. muaj peev xwm ua kom tsis muaj menyuam. Txawm li cas los xij, thaum cov ntsiab lus chlorine residual siab dhau lawm, nws tuaj yeem yooj yim ua rau cov dej tsis zoo, feem ntau ua rau cov carcinogens, ua rau hemolytic anemia, thiab lwm yam, uas muaj qee yam teeb meem rau tib neeg kev noj qab haus huv. Yog li ntawd, tswj tau zoo thiab tshawb xyuas cov ntsiab lus chlorine seem yog qhov tseem ceeb hauv kev kho dej.
Ntau hom chlorine muaj nyob hauv dej:
Cov tshuaj chlorine residual (free chlorine): chlorine nyob rau hauv daim ntawv ntawm hypochlorous acid, hypochlorite, los yog dissolved elemental chlorine.
Cov tshuaj chlorine sib xyaw: chlorine hauv daim ntawv ntawm chloramines thiab organochloramines.
Tag nrho cov tshuaj chlorine: chlorine tam sim no nyob rau hauv daim ntawv ntawm cov tshuaj dawb residual chlorine los yog ua ke chlorine los yog ob qho tib si.
Rau kev txiav txim siab ntawm cov tshuaj chlorine seem thiab tag nrho cov tshuaj chlorine hauv dej, txoj kev o-toluidine thiab iodine txoj kev tau dav siv yav dhau los. Cov txheej txheem no yog cumbersome rau kev khiav hauj lwm thiab muaj lub sij hawm ntsuam xyuas ntev (yuav tsum tau cov kws tshaj lij), thiab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua kom sai thiab raws li qhov xav tau ntawm kev ntsuas dej zoo. kev xav tau thiab tsis haum rau kev txheeb xyuas ntawm qhov chaw; Tsis tas li ntawd, vim hais tias o-toluidine reagent yog carcinogenic, cov tshuaj chlorine residual nrhiav kom tau nyob rau hauv "Hygienic Standards for Drinking Water" tshaj tawm los ntawm Ministry of Health ntawm cov neeg koom pheej ntawm Tuam Tshoj nyob rau hauv Lub rau hli ntuj 2001 tau tshem tawm cov o-toluidine reagent. Txoj kev benzidine tau hloov los ntawm DPD spectrophotometric.
Txoj kev DPD tam sim no yog ib txoj hauv kev zoo tshaj plaws rau kev tshawb nrhiav tam sim ntawm cov tshuaj chlorine seem. Piv nrog rau OTO txoj kev tshawb nrhiav cov tshuaj chlorine seem, nws qhov tseeb yog siab dua.
DPD qhov sib txawv ntawm qhov sib txawv ntawm cov duab thaij duab Photometry yog ib txoj hauv kev analytical chemistry feem ntau siv los ntsuas qhov concentration ntawm cov tshuaj chlorine uas tsis tshua muaj los yog tag nrho cov tshuaj chlorine hauv cov qauv dej. Txoj kev no txiav txim siab cov tshuaj chlorine los ntawm kev ntsuas cov xim uas tsim los ntawm qee yam tshuaj tiv thaiv.
Lub hauv paus ntsiab lus ntawm DPD photometry yog raws li nram no:
1. Cov tshuaj tiv thaiv: Hauv cov qauv dej, cov tshuaj chlorine residual lossis tag nrho cov tshuaj chlorine reacts nrog cov tshuaj reagents tshwj xeeb (DPD reagents). Cov tshuaj tiv thaiv no ua rau cov xim ntawm cov tshuaj hloov pauv.
2. Kev hloov xim: Cov khoom sib xyaw tsim los ntawm DPD reagent thiab cov tshuaj chlorine yuav hloov cov xim ntawm cov qauv dej los ntawm cov xim tsis muaj xim lossis lub teeb daj rau xim liab lossis ntshav. Qhov kev hloov xim no yog nyob rau hauv qhov pom spectrum ntau yam.
3. Kev ntsuas Photometric: Siv lub spectrophotometer lossis photometer los ntsuas qhov absorbance lossis transmittance ntawm cov tshuaj. Qhov kev ntsuas no feem ntau ua tiav ntawm ib lub wavelength tshwj xeeb (feem ntau yog 520nm lossis lwm qhov tshwj xeeb wavelength).
4. Kev tshuaj xyuas thiab kev suav: Raws li qhov ntsuas qhov nqus los yog qhov xa tawm, siv tus qauv nkhaus lossis cov qauv qhia pom los txiav txim siab qhov concentration ntawm chlorine hauv cov qauv dej.
DPD photometry feem ntau yog siv dav hauv kev kho dej, tshwj xeeb tshaj yog hauv kev sim dej haus, dej hauv pas dej da dej zoo thiab cov txheej txheem kho dej. Nws yog ib txoj hauv kev yooj yim thiab raug uas tuaj yeem ntsuas qhov concentration ntawm cov tshuaj chlorine sai kom ntseeg tau tias cov tshuaj chlorine concentration hauv dej yog nyob rau hauv qhov tsim nyog los tshem tawm cov kab mob thiab lwm yam kab mob phem.
Thov nco ntsoov tias cov txheej txheem kev tshuaj xyuas tshwj xeeb thiab cov cuab yeej siv yuav txawv ntawm cov tuam txhab thiab cov chaw sim, yog li thaum siv DPD photometry, thov xa mus rau cov txheej txheem kev tshuaj xyuas tshwj xeeb thiab cov cuab yeej ntsuas kev ua haujlwm los xyuas kom meej thiab rov ua dua.
LH-P3CLO tam sim no muab los ntawm Lianhua yog ib qho khoom siv chlorine meter uas ua tau raws li DPD photometric txoj kev.
Ua raws li kev lag luam tus qauv: HJ586-2010 Dej Zoo - Kev txiav txim siab ntawm cov chlorine dawb thiab tag nrho cov chlorine - N, N-diethyl-1,4-phenylenediamine spectrophotometric method.
Cov txheej txheem kuaj cov dej haus - cov tshuaj tua kab mob (GB/T5750,11-2006)
Nta
1, Yooj yim thiab siv tau, ua haujlwm tau zoo hauv kev xav tau, nrhiav kom tau sai ntawm ntau qhov taw qhia thiab kev ua haujlwm yooj yim.
2, 3.5-nti xim tshuaj ntsuam, ntshiab thiab zoo nkauj interface, dial style user interface, concentration yog nyeem ncaj qha.
3, Peb ntsuas ntsuas tau, txhawb nqa cov tshuaj chlorine residual, tag nrho cov tshuaj chlorine residual, thiab chlorine dioxide qhia pom.
4, 15 pcs ntawm built-in nkhaus, txhawb nqa nkhaus calibration, ua tau raws li qhov yuav tsum tau ntawm kev tshawb fawb cov tsev kawm ntawv, thiab yoog mus rau ntau yam kev sim ib puag ncig.
5, Txhawb kev kho qhov muag kho qhov muag, ua kom pom kev siv zog, txhim kho cov cuab yeej raug thiab ruaj khov, thiab txuas ntxiv kev pab cuam lub neej.
6, Ua nyob rau hauv kev ntsuas lub siab txwv, intuitive zaub ntawm ntau tshaj qhov txwv, dial displaying nrhiav kom tau lub sab sauv txwv tus nqi, liab prompt rau tshaj txwv.
Post lub sij hawm: May-24-2024
