Oxidizing vs. Tsis-Oxidizing Biocides hauv Industrial Cooling Water

Oxidizing thiab non-oxidizing biocides tswj cov kab mob los ntawm cov txheej txheem sib txawv. Oxidizing biocides ua feem ntau los ntawm oxidation, thaum uas tsis yog-oxidizing biocides tsom rau cov qauv ntawm tes los yog cov txheej txheem biochemical, nyob ntawm seb muaj pes tsawg leeg. Ob pawg tsis yog qhov kev xaiv zoo dua rau txhua qhov kev lag luam txias-dej.

Kev xaiv cov biocide uas tsim nyog yuav tsum muaj ntau dua li kev sib piv cov npe khoom lossis cov ntsiab lus feem pua. Dej chemistry, microbial tej yam kev mob, kev sib cuag lub sij hawm, kev kho mob compatibility, dej poob thiab saib xyuas txoj kev tag nrho cov cuam tshuam qhov tshwm sim. Lub hom phiaj siv tau yog txhawm rau txheeb xyuas qhov kev kho mob uas hais txog qhov teeb meem pom thiab nws qhov kev xa khoom thiab kev ua tau zoo tuaj yeem raug txheeb xyuas raws li kev ua haujlwm tiag tiag.

1. Qhov txawv ntawm Oxidizing thiab Non-Oxidizing Biocides yog dab tsi?

Yuav ua li cas oxidizing biocides ua haujlwm

Oxidizing biocides tswj cov kab mob los ntawm cov tshuaj tiv thaiv oxidation uas ua rau cov cellular puas thiab cuam tshuam rau kev ua haujlwm lom neeg. Cov neeg sawv cev ua kom txias-dej kho muaj xws li tshuaj chlorine-based, kho bromine-based thiab chlorine dioxide.

Txawm hais tias cov khoom no muaj nyob rau tib yam dav, lawv cov cwj pwm tshuaj tsis zoo ib yam. Piv txwv li, pH cuam tshuam qhov sib npaug ntawm hypochlorous acid (HOCl) thiab hypochlorite ion (OCl⁻) hauv kev kho cov tshuaj chlorine. Chlorine dioxide ua raws li kev sib txawv ntawm chemistry thiab yuav tsum tsis txhob raug soj ntsuam siv tib txoj kev sib raug zoo HOCl/OCl⁻.

Yog li ntawd, tus nqi ntawm oxidant nkag mus rau hauv lub tshuab ua kom txias tsis, los ntawm nws tus kheej, tsim cov nyiaj seem muaj los tswj cov kab mob. Cov dej chemistry thiab cov khoom uas siv cov oxidant yuav tsum tau txiav txim siab.

Yuav ua li cas tsis-oxidizing biocides ua haujlwm

Non-oxidizing biocides ua los ntawm cov txheej txheem uas sib txawv los ntawm cov khoom xyaw nquag. Qee qhov cuam tshuam nrog cell membranes, thaum lwm tus cuam tshuam cov txheej txheem biochemical uas xav tau rau kev loj hlob microbial thiab ciaj sia taus.

Quaternary ammonium compounds, feem ntau hu ua quats, yog ib qho piv txwv ntawm cov chav kawm uas tsis yog oxidizing biocide. Isothiazolinones yog lwm chav kawm siv hauv kev kho dej.

Lub sij hawm tsis-oxidizing piav txog lub hom phiaj tseem ceeb ntawm kev ua. Nws tsis txhais hais tias ib yam khoom tsis muaj teeb meem, tsis muaj corrosive, universally sib xws los yog haum rau txhua daim ntawv thov dej txias. Cov khoom yog tus kheej, concentration, tuav cov cai thiab kev siv yuav tsum tau soj ntsuam nyias.

Ib qho kev sib piv

Kev ntsuas ntsuas	Oxidizing biocides	Tsis-oxidizing biocides
Tus thawj tswj mechanism	Oxidative puas rau microbial qauv thiab kev ua haujlwm	Kev cuam tshuam nrog cov qauv cellular tshwj xeeb lossis cov txheej txheem biochemical
Cov piv txwv sawv cev	Kev kho mob raws li chlorine, kev kho mob raws li bromine, chlorine dioxide	Quaternary ammonium compounds, isothiazolinones
Cov lus nug tseem ceeb chemistry	Yuav ua li cas dej chemistry cuam tshuam cov active oxidant muaj nyob rau hauv lub system?	Puas yog cov khoom xyaw uas tau xaiv ua kom haum rau cov dej chemistry thiab lub hom phiaj teeb meem?
Kev xav txog kev nthuav tawm	Tus cwj pwm seem, tshuaj lom neeg xav tau thiab kev sib cuag	Cov khoom lag luam tshwj xeeb raug txwv, kev siv, degradation thiab dej poob
Kev ntsuas kev sib raug zoo	Ntsuam xyuas cov ntaub ntub dej thiab cov kev pab cuam kho kom tiav	Ntsuam xyuas cov ntaub ntub dej thiab cov kev pab cuam kho kom tiav
Kev txheeb xyuas kev ua haujlwm	Kev soj ntsuam tshuaj tsim nyog thiab pov thawj ntawm microbial lossis kev tswj qhov chaw	Cov khoom tsim nyog saib xyuas thiab pov thawj ntawm microbial lossis kev tswj saum npoo

Qhov kev sib piv no txheeb xyuas cov lus nug los tshawb xyuas; nws tsis suav ob pawg los ntawm kev ua tau zoo, nqi lossis kev nyab xeeb.

2. Dej Chemistry thiab Compatibility cuam tshuam li cas rau kev xaiv Biocide?

Ntsuas pH thiab tshuaj lom neeg xav tau

Dej chemistry tuaj yeem hloov pauv li cas biocide coj tom qab nws nkag mus rau hauv qhov txias txias.

Rau cov tshuaj chlorine-raws li kev kho mob, pH cuam tshuam cov txheeb ze ntawm HOCl thiab OCl⁻. Raws li pH nce, qhov kev faib ua feem ntawm hypochlorite ion nce. Ob daim ntawv no tsis muaj cov haujlwm biocidal zoo ib yam.

Kev thov tshuaj yog lwm qhov tseem ceeb. Cov tshuaj nyob rau hauv cov dej ntws tuaj yeem hnov ​​​​mob nrog cov oxidant thiab haus ib feem ntawm cov lus qhia. Tus nqi noj yog li tsis tuaj yeem txhais tau tias qhov seem seem muaj rau kev tswj hwm microbial.

Yog tias qhov kev kho mob uas twb muaj lawm zoo li tsis muaj txiaj ntsig, tshuaj xyuas cov pH cuam tshuam, cov ntaub ntawv seem thiab kev ua haujlwm ua ntej xav tias cov khoom nws tus kheej yuav tsum tau hloov. Kev hloov pauv hauv dej chemistry lossis tshuaj lom neeg xav tau tuaj yeem pab piav qhia qhov tshwm sim.

Tsis-oxidizing biocides xav tau lawv tus kheej cov khoom tshwj xeeb kev soj ntsuam. Cov kev txiav txim siab ntsig txog yuav suav nrog pH, qhov kub thiab txias, cov khoom paug, cov xwm txheej raug thiab cov khoom ntawm cov khoom xyaw uas tau xaiv. Tus nqi pH tau tshaj tawm rau cov khoom siv concentrated lossis kev sim dilution tsis, los ntawm nws tus kheej, tsim kom muaj kev ua haujlwm tau zoo rau cov dej ntws.

Tshawb xyuas cov ntaub ntawv thiab kev kho kom tiav

Cov dej txias-dej biocide yuav tsum tsis txhob raug soj ntsuam nyob rau hauv kev sib cais los ntawm tus so ntawm qhov kev pab cuam kho mob.

Cov ntaub ntawv ntub dej, cov tshuaj tiv thaiv corrosion, dispersants thiab lwm yam tshuaj kho mob tuaj yeem cuam tshuam cov khoom xaiv thiab kev sib raug zoo. Kev npaj txhaj tshuaj kuj tseem ceeb: qhia txog cov tshuaj tsis sib haum ua ke lossis tso cai rau kev sib cuag hauv zos tuaj yeem tsim teeb meem uas tsis tshwm sim los ntawm cov lus piav qhia dav dav.

Rau kev sib piv cov tswv yim, cov ntaub ntawv:

• Lub circulating-dej chemistry thiab lwm yam kev khiav hauj lwm tej yam kev mob

• Cov ntaub ntawv raug rau kev kho mob

• Twb muaj corrosion inhibitors, dispersants thiab lwm yam tshuaj

• Kev npaj txhaj tshuaj

• Txhua yam kev tso tawm lossis kev txwv kev kho mob

Ntsuam xyuas kev sib raug zoo siv cov ntaub ntawv ntsig txog cov khoom siv tiag tiag thiab cov xwm txheej. Daim ntawv lo tsis-oxidizing tsis yog pov thawj tias biocide sib haum nrog txhua tus inhibitor lossis cov khoom siv.

3. Vim li cas thiaj hu sij hawm, dej poob thiab Biofilm teeb meem?

Xav txog kev kis thoob plaws hauv lub tshuab cua txias

Thawj tus nqi ntawm biocide ntxiv tsuas yog ib feem ntawm kev ntsuas kev kho mob. Cov concentration thiab raug kev paub los ntawm cov kab mob tuaj yeem hloov pauv raws li cov dej ncig, tshuaj lom neeg tshwm sim thiab cov dej kho tau tawm hauv lub cev.

Blowdown yog ib qho piv txwv. Nws tshem tawm cov dej ntws thiab feem ntau yog nrog los ntawm kev hloov nrog cov dej pleev xim. Yog tias cov dej pleev xim tsis muaj cov tshuaj kho mob sib xws, cov dej poob tuaj yeem txo cov concentration ntawm biocide seem hauv lub cev.

Xav txog ob qhov kev ua kom txias txias nrog tib lub ntim dej thawj zaug thiab tib qhov pib ntxiv ntawm ib qho biocide. Yog tias ib qho hluav taws xob muaj lub tshuab hluav taws xob ntau dua, nws yuav poob dej kho sai dua li lwm qhov, piv txwv li kev sib piv sib xyaw thiab lwm yam kev kho mob poob. Lawv cov tom ntej concentration profiles tej zaum yuav txawv.

Qhov piv txwv no tsis tsim kom muaj universal dosing interval. Nws piav qhia tias vim li cas lub sijhawm kho yuav tsum tsis txhob muab theej los ntawm lwm qhov system raws li qhov ntim dej nominal nkaus xwb. Kev poob dej, kev coj tus cwj pwm ntawm cov khoom lag luam thiab cov xwm txheej raug tsim los ntawm cov txheej txheem tshwj xeeb yuav tsum tau txiav txim siab.

Kev kho tsis tu ncua, tsis tu ncua lossis sib xyaw ua ke yuav tsum raug ntsuas raws li qhov xav tau ntawm daim ntawv thov thiab cov lus qhia txog cov khoom lag luam. Kev nthuav qhia cov khoom xyaw thib ob yuav tsum muaj lub hom phiaj uas tau hais tseg thiab yuav tsum tau txais kev txhawb nqa los ntawm cov ntaub ntawv sib raug zoo thiab cov phiaj xwm ntsuas.

Ntsuas biofilm thiab qhov chaw nyob

Cov kab mob uas txuas rau cov khoom siv saum npoo tuaj yeem tsim biofilms. Cov matrix nyob ib puag ncig tuaj yeem cuam tshuam qhov kev kho tau yooj yim mus txog cov kab mob, thaum cov khoom tso nyiaj thiab cov ntaub ntawv cuam tshuam kuj tuaj yeem cuam tshuam cov tshuaj xav tau.

Tej-dej microbial tshwm sim ib leeg tsis tas piav txog qhov xwm txheej ntawm qhov chaw thoob plaws hauv lub tshuab cua txias. Ib lub kaw lus yuav qhia tau tias muaj kev hloov pauv hauv cov qauv dej thaum cov nyiaj tso cia tseem nyob hauv ib qho kev sib pauv cua sov lossis lwm qhov chaw teeb meem.

Thaum ntsuas qhov kev hloov kho, txheeb xyuas qhov chaw thiab qhov xwm txheej uas yuav tsum tau txhim kho. Yog tias tsim nyog, sib piv cov txiaj ntsig ntawm kev saib xyuas dej nrog cov kev soj ntsuam zoo ib yam los yog lwm yam kev ntsuam xyuas txog kev thov.

Yog hais tias lub hom phiaj mob tshwm sim txawm hais tias muaj kev tshuaj ntsuam xyuas cov khoom xa tuaj, tshawb xyuas qhov xwm txheej ntawm qhov tso nyiaj, kev faib khoom kho thiab qhov tsim nyog ntawm cov khoom xaiv. Ib qho kev tu kom huv kuj yuav xav tau kev soj ntsuam cais. Tsis yog oxidizing los yog non-oxidizing biocides yuav tsum tau xav tias yuav daws txhua qhov teeb meem ntsig txog ntawm lawv tus kheej.

4. Cov Ntsiab Lus Qhia Txog Dab Tsi Yog Dab Tsi Txog Biocide?

Cov ntsiab lus nquag piav qhia txog tus nqi ntawm cov khoom muaj txiaj ntsig uas tau txheeb xyuas hauv cov khoom lag luam raws li kev txheeb xyuas tau teev tseg. Nws yog ib qho tseem ceeb rau kev nkag siab txog cov khoom muaj pes tsawg leeg thiab ua ib qho kev suav thaum lub hauv paus concentration tau lees paub. Nws tsis yog nws tus kheej tsim kev kho mob.

QINGQUAN muab 1227 Tsis-Oxidizing Biocide rau microbial tswj thiab slime kev kho mob nyob rau hauv circulating txias-dej daim ntaub ntawv. Nws luam tawm cov ntaub ntawv cov khoom lag luam teev cov ntsiab lus tshwj xeeb ntawm tsawg kawg yog 44% thiab tsawg kawg yog 80% rau qib sib txawv.

Cov no yog cov kev txwv yam tsawg kawg nkaus, tsis yog cov txiaj ntsig txheeb xyuas tseeb rau txhua pawg. Yog tias qhov kev suav yuav tsum muaj cov ntsiab lus tseem ceeb ntawm cov khoom siv, siv cov ntaub ntawv siv tau thiab lees paub qhov ntsuas ntsuas.

QINGQUAN kuj sau npe Isothiazolinone Biocide rau kev siv dej txias-dej thiab txheej txheem-dej hauv cov qib sib txawv. Cov khoom siv tshwj xeeb yuav tsum raug txheeb xyuas ua ntej nws cov concentration lossis lwm yam kev qhia tshwj xeeb yog siv hauv kev suav.

Peb qhov kev sib piv yuav tsum nyob sib cais:

• Sib txawv concentrations ntawm tib yam khoom: Txheeb xyuas cov qib muab, qhov tseeb concentration hauv paus thiab cov lus qhia txog kev thov ua ntej sib piv cov khoom.

• Cov khoom xyaw nquag sib txawv: Qhov sib npaug active pawg tsis tsim kom muaj kev sib npaug ntawm cov teeb meem microbial.

• Kev ua haujlwm sib txawv: Tib yam khoom thiab koob tshuaj yuav tsis ua rau tib yam tshwm sim thaum dej chemistry, raug lossis kab mob sib txawv.

Rau kev yuav khoom, kev sib piv tsuas yog raws li tus nqi ntawm ib lub nruas tuaj yeem ua yuam kev yog tias pob khoom ntau lossis cov khoom sib txawv. Kev sib piv tus nqi ntawm ib qho uas tau teev tseg yuav ua rau muaj qhov pom tseeb ntawm cov khoom siv-tus nqi thaum cov khoom lag luam thiab cov ntsiab lus txheeb xyuas sib piv. Txawm li cas los xij, nws tseem tsis tau tsim tus nqi kom ua tiav qhov kev tswj hwm uas yuav tsum tau ua.

Kev txiav txim siab yuav khoom muaj txiaj ntsig yuav tsum xav txog qhov tseeb cov khoom tshwj xeeb, qhov xav tau kev kho mob kom muaj nuj nqis, cov ntaub ntawv pov thawj cuam tshuam thiab cov txiaj ntsig kev ua haujlwm raug tshuaj xyuas.

5. Koj tuaj yeem txheeb xyuas qhov kev xa khoom biocide thiab kev kho mob li cas?

Cais kev xa tshuaj los ntawm kev kho mob

Lub twj tso kua mis khiav tsis tau, los ntawm nws tus kheej, ua pov thawj tias qhov xav tau ntawm biocide nkag mus rau hauv lub cev. Ib yam li ntawd, kev ntsuas tshuaj tsis tuaj yeem ua pov thawj tias cov kab mob microbial lossis qhov chaw ntawm kev txhawj xeeb tau raug tswj xyuas.

Kev ntsuam xyuas ua tau zoo yuav tsum teb peb nqe lus nug.

1. Puas yog cov khoom xa tuaj?

Sib piv cov phiaj xwm pub nrog kev ntsuas kev xa khoom tsim nyog thiab cov ntaub ntawv siv tshuaj lom neeg. Xav txog cov kev hloov pauv hauv kev ua haujlwm thiab siv cov kev ntsuas tsim nyog rau cov khoom siv thiab cov khoom siv.

2. Puas yog qhov cuam tshuam txog tshuaj lom neeg ua tiav?

Siv ib txoj hauv kev saib xyuas kom tsim nyog rau cov khoom xyaw uas tau xaiv thiab dej matrix. Kev kho oxidizing tuaj yeem raug soj ntsuam los ntawm kev ntsuas cov khoom seem uas tsim nyog, thaum cov khoom tsis yog oxidizing yuav xav tau cov khoom tshwj xeeb kev tshuaj ntsuam xyuas lossis lwm cov ntaub ntawv txheeb xyuas.

Kev nyeem ntawv oxidation-txo qis (ORP) yuav tsum tsis txhob raug kho raws li kev ntsuas thoob ntiaj teb rau txhua qhov biocides. Nws txhais lus nyob ntawm chemistry thiab ntsuas cov ntsiab lus.

3. Puas yog kho tau zoo?

Sib piv cov qauv microbial cuam tshuam, kev soj ntsuam saum npoo av lossis lwm yam ntsuas kev ua tau zoo ua ntej nrog cov hauv paus ntsiab lus. Siv qhov chaw ua piv txwv zoo ib yam thiab cov txheej txheem ntsuas qhov ua tau, thiab txhais cov txiaj ntsig nrog rau cov xwm txheej ua haujlwm tau kaw thaum lub sijhawm ntsuas.

Cov lus nug no kuj tseem pab txheeb xyuas cov kauj ruam tom ntej thaum qhov kev sim tsis xa cov txiaj ntsig xav tau:

• Yog tias kev xa khoom txawv ntawm qhov xav tau pub, tshawb xyuas qhov sib txawv ntawm qhov khoom xa tuaj ua ntej txiav txim siab cov khoom lag luam.

• Yog tias kev xa khoom raug txheeb xyuas tab sis qhov kev cia siab tsis ua tiav, tshuaj xyuas cov dej poob, tshuaj lom neeg xav tau thiab cov khoom tshwj xeeb.

• Yog tias qhov cuam tshuam raug tsim los tab sis lub hom phiaj tseem muaj, rov txheeb xyuas cov khoom tsim nyog, kev faib tawm thiab qhov teeb meem ntawm qhov teeb meem.

Hloov cov tshuaj yam tsis tau txheeb xyuas qhov twg ntawm qhov kev ntsuam xyuas ua tsis tiav yuav ua rau qhov teeb meem qub daws tsis tau.

Paub meej cov ntaub ntawv khoom ua ntej kev yuav khoom

Ua ntej yuav ib qho biocide, xyuas kom meej tias cov ntaub ntawv sib raug rau cov khoom siv tiag tiag thiab daim ntawv thov.

Nyob ntawm qhov chaw ua lag luam thiab kev siv, cov ntaub ntawv tseem ceeb yuav suav nrog cov ntaub ntawv qhia txog kev nyab xeeb, cov ntaub ntawv kev nyab xeeb, cov khoom lag luam, cov ntaub ntawv txheeb xyuas lossis cov ntaub ntawv batch, thiab cov ntaub ntawv tswj hwm yuav tsum tau ua.

Rau cov ntawv thov hauv Asmeskas, tshawb xyuas EPA cov ntawv sau npe thiab cov ntawv sau npe. Rau EU daim ntawv thov, paub qhov txawv ntawm cov khoom siv pom zoo los ntawm cov khoom tso cai thiab kev npaj-siv yuav tsum tau ua raws li Txoj Cai Biocidal Products Regulation.

Daim ntawv qhia cov ntaub ntawv lossis cov ntsiab lus tseem ceeb tsis tau, los ntawm nws tus kheej, qhia tau tias txhua qhov kev tso cai ua lag luam tau ua tiav.

Rau QINGQUAN's 1227 lossis isothiazolinone cov khoom, hu rau QINGQUAN nrog rau daim ntawv thov kom txias-dej, xaiv cov khoom qib thiab cov ntaub ntawv ntsig txog kev khiav hauj lwm los tham txog cov ntaub ntawv siv khoom.

Qhov kev xaiv zaum kawg yuav tsum yog raws li qhov tseeb ntawm cov txheej txheem, cov khoom siv tshwj xeeb thiab cov pov thawj tias kev kho mob daws qhov teeb meem raug tswj.

Cov ntaub ntawv

1. Veolia. Phau Ntawv Qhia Dej, Tshooj 26: Kev Tswj Microbiological—Coling System. Cov ntawv online; hnub hloov kho tsis tau teev tseg.

2. Veolia. Phau Ntawv Qhia Dej, Tshooj 27: Cov tshuaj chlorine thiab cov tshuaj chlorine. Cov ntawv online; hnub hloov kho tsis tau teev tseg.

3. Health thiab Safety Executive. HSG274 Ntu 1: Kev Tswj Cov Kab Mob Legionella hauv Evaporative Cooling Systems. Thib ob, 2024.

4. QINGQUAN. 1227 Tsis-Oxidizing Biocide. Cov ntaub ntawv khoom siv nkag mus rau Lub Kaum Hli 20, 2026.

5. QINGQUAN. Isothiazolinone Biocide. Cov ntaub ntawv khoom siv nkag mus rau Lub Kaum Hli 20, 2026.

6. United States Environmental Protection Agency. Antimicrobial Pesticide Registration. Kev taw qhia online.

7. European Chemicals Agency. Nkag siab txog Biocidal Products Regulation (BPR). Kev taw qhia online.