Sodium hypochlorite sterilizer rau lub pas dej da dej

Sodium hypochlorite sterilizer rau lub pas dej da dej

Kev taw qhia luv luv rau cov txheej txheem kho dej ntawm lub pas dej da dej

Kev ua luam dej yog ib qho kev ua si uas suav nrog kev lom zem thiab kev tawm dag zog. Kev noj qab haus huv, xis nyob thiab nyab xeeb hauv pas dej da dej zoo yuav ua rau muaj kev lom zem rau lub cev thiab lub hlwb rau cov neeg nyiam ua luam dej. Raws li tib neeg lub cev inevitably tsim ib tug loj npaum li cas ntawm cov av thiab secretions nyob rau hauv tus txheej txheem ntawm soaking nyob rau hauv lub pas dej da dej, thiab ntau yam kab mob thiab cov kab mob pathogenic yuav nkag mus rau hauv dej, lub pas dej da dej yuav tsum tau kho kom tua cov kab mob phem, ua kom pom tseeb. , thiab muab ib qho yooj yim, tasteless thiab tsis muaj kuab paug zoo dej zoo.

Tam sim no, cov tshuaj tua kab mob hauv pas dej da dej feem ntau suav nrog chlorine tus neeg tua kab mob txoj kev, chlorine dioxide txoj kev, ozone tshuaj tua kab mob, electrostatic sterilization thiab algae tua txoj kev, tooj liab sulfate algae inhibiting txoj kev.

Raws li cov txheej txheem tshuaj tua kab mob thiab ua kom tsis muaj menyuam rau kev kho dej, tshuaj tua kab mob chlorine muaj keeb kwm ntau tshaj 100 xyoo thiab tseem siv dav vim tias nws muaj peev xwm tua kab mob muaj zog, tus nqi qis, thiab ntau qhov chaw. Cov kab mob bactericidal ntawm cov tshuaj chlorine feem ntau yog vim nws cov oxidation muaj zog thiab yooj yim hla ntawm phab ntsa ntawm tes. Cov yam tseem ceeb uas cuam tshuam rau cov tshuaj tua kab mob ntawm cov tshuaj chlorine muaj xws li kev siv tshuaj chlorine, lub sijhawm sib cuag, tus nqi pH, dej kub, turbidity, thiab hom thiab ntau npaum li cas ntawm cov kab mob hauv dej.

Nyob rau hauv xyoo tas los no, teeb meem ib puag ncig thiab kev nyab xeeb los ntawm tshuaj tua kab mob chlorine tau nyiam ntau thiab ntau dua. Raws li cov tshuaj tua kab mob chlorine tuaj yeem tua cov kab mob thiab kab mob, nws tuaj yeem tsim amine chloride thiab trihalomethane (THM) nrog urea thiab organic tshuaj secreted los ntawm tib neeg lub cev. Lub volatilization ntawm amine chloride yuav ua rau muaj ntxhiab tsw tshwj xeeb hauv cov pas dej da dej hauv tsev, uas yuav ua rau tib neeg lub qhov muag, pob ntseg, qhov ntswg thiab caj pas mucosa. THM tau raug lees paub tias yog carcinogenic rau nas. Xyoo 2001, US Environmental Protection Agency (EPA) tau tshaj tawm tias THM muaj kev phom sij rau kev noj qab haus huv, hais tias kev haus dej mus sij hawm ntev nrog THM ntau tshaj tus qauv tuaj yeem ua rau mob qog noj ntshav ntawm lub ntsws, lub siab thiab lub hauv nruab nrab lub paj hlwb, thiab THM hauv kev ua luam dej. dej pas dej ua ke tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv los ntawm tib neeg ua pa thiab nkag mus rau ntawm daim tawv nqaij.

Txhawm rau txo cov ntsiab lus ntawm chloramines thiab trihalomethanes hauv pas dej da dej thiab txo lawv txoj kev raug mob, lawv tuaj yeem raug tshem tawm los ntawm coagulation sedimentation, activated carbon adsorption filtration thiab lwm txoj kev. Chlorine dioxide lossis ozone tua kab mob tuaj yeem daws cov teeb meem saum toj no. Xyoo 1940, qee lub tebchaws nyob sab Europe pom tias cov tshuaj chlorine dioxide muaj txiaj ntsig zoo rau kev tua kab mob hauv dej, tab sis nws tsis tau them nyiaj vim nws txoj kev tsim khoom thiab cov nqi siab. Nyob rau hauv xyoo tas los no, thaum nrhiav cov tshuaj tua kab mob tshiab kom tsis txhob muaj kev phom sij los ntawm kev siv tshuaj tua kab mob chlorine, kev tshawb fawb thiab kev siv tshuaj chlorine dioxide tau nce ntxiv. Txoj kev tshuaj tua kab mob chlorine dioxide muaj qhov zoo hauv qab no:

(1) Nws tuaj yeem txo qhov tsim ntawm chlorination los ntawm cov khoom xws li trihalomethane hauv dej;

(2) Thaum cov ntsiab lus ammonia hauv dej siab, nws yuav tsis hnov ​​​​mob nrog ammonia, yog li nws cov oxidation thiab tshuaj tua kab mob yuav tsis cuam tshuam;

(3) Nws tuaj yeem tua cov kab mob kab mob thiab kab mob hauv dej;

(4) Cov tshuaj tua kab mob tsis cuam tshuam los ntawm dej pH;

(5) Tom qab kho cov tshuaj chlorine dioxide, cov tshuaj chlorine seem hauv dej yog ruaj khov thiab ruaj khov, thiab muaj peev xwm tiv thaiv kom tsis txhob muaj kuab paug;

(6) Vim muaj zog oxidation, nws muaj peev xwm tshem tawm cov xim thiab saj ntawm dej, thiab tsis tsim chlorophenol tsw nrog phenol;

(7) Cov nyhuv tshem tawm ntawm cov hlau thiab manganese zoo dua li cov tshuaj chlorine.

Kev xaiv ntawm anode

Lub hauv paus ntsiab lus ntawm kev tsim sodium hypochlorite los ntawm txoj kev electrode yog siv diaphragm dawb electrolysis los tsim sodium hypochlorite los ntawm homogeneous theem nrab cov tshuaj tiv thaiv. Lub hauv paus ntsiab lus ntawm cov tshuaj tiv thaiv anode yog electrolyze sodium chloride (ntsiav tshuaj) muab tso rau hauv lub pas dej da dej. Thaum electrolysis, sodium hypochlorite yog tsim. Qhov zoo tshaj plaws ntsev concentration yog 3 feem pua ​​- 5 feem pua ​​Cov electrodes siv nyob rau hauv lub sodium hypochlorite generator yog phaj electrode thiab raj electrode.

Coated titanium electrode tuaj yeem xaiv los ua cov khoom siv anode. Qhov sib xyaw oxide coated titanium anode muaj lub neej ua haujlwm ntev. Lub overpotential ntawm no coated titanium anode kuj yog tsawg, cov tshuaj chlorine evolution tam sim no efficiency siab, thiab lub zog txuag cov nyhuv yog zoo.

Lub anode ntawm peb lub tuam txhab muaj kev ua haujlwm siab thiab ua haujlwm ntev. Nws tseem tuaj yeem siv rau cov haujlwm tshwj xeeb hauv qab no:

• Cov txheej txheem tshem tawm oxidation (xws li acid pickling);

• Electrolytes rau kev ua haujlwm siab;

• Electrode thim rov qab.

Raws li cov ntaub ntawv saum toj no, lub tuam txhab tau tsim cov khoom tshwj xeeb anode uas tsim nyog rau kev siv los txhim kho kev siv ntsev thiab ua kom lub neej ntev ntawm anode. Cov khoom tseem ceeb yog raws li nram no:

• Ruthenium hlau oxide coated titanium anodes;

• Iridium platinum oxide coated titanium anodes.