1. ntub dej oxidation (persulfate) - tsis yog -dispersive infrared detection (NDIR)
Hauv cov qauv no, cov qauv yuav tsum tau kuaj yog kho nrog phosphoric acid ua ntej oxidation kom tshem tawm cov pa roj carbon inorganic, thiab tom qab ntawd ntsuas TOC concentration. Feem ntau ntawm cov niaj hnub TOC nruam analyzers yog ntub oxidation. Kev ntub dej oxidation tsis txaus rau oxidation ntawm complex dej lub cev (xws li: humic acid, siab molecular hnyav compounds, thiab lwm yam), yog li nws tsis haum rau lub cev dej nrog cov ntsiab lus TOC siab, tab sis nws muaj peev xwm ua tau rau cov pa dej hauv lub cev xws li dej saum npoo av.
2. Kub kub catalytic combustion oxidation - tsis yog -dispersive infrared detection (NDIR)
Lub sijhawm ua haujlwm siab ntawm -kub catalytic combustion oxidation yog ntau tom qab ntawm cov oxidation ntub dej, tab sis vim tias qhov kub ntawm - kub combustion yog qhov zoo, nws tuaj yeem siv rau cov dej hauv dej xws li dej ntws, dej hiav txwv thiab cov dej khib nyiab uas muaj kuab paug hnyav.
3. UV Oxidation - Tsis yog-Dispersive Infrared Detection (NDIR)
Cov txheej txheem yog tib yam li cov oxidation ntub dej, tab sis lub hauv paus ntsiab lus ntawm ultraviolet lub teeb (185nm) irradiation yog siv los tshem tawm cov pa roj carbon inorganic ua ntej cov qauv nkag mus rau ultraviolet reactor, thiab tau txais txiaj ntsig ntau dua. Txoj kev UV oxidation tsis haum rau siab -cov ntsiab lus TOC xws li granular organics, tshuaj, thiab cov proteins, tab sis nws tuaj yeem siv rau hauv cov dej hauv dej xws li dej tsis qab thiab dej ua haujlwm.
4. Ultraviolet (UV)- ntub dej (Persulfate) Oxidation-Non-Dispersive Infrared Detection (NDIR)
Txoj kev no yog cov nyhuv synergistic ntawm UV oxidation thiab ntub oxidation, ntxiv thiab txhawb ib leeg, thiab cov nyhuv oxidative degradation zoo dua li ib qho ntawm lawv. Raws li UV oxidation tsis tuaj yeem siv hauv dej nrog cov ntsiab lus siab ntawm TOC, kev sib koom ua ke ntawm ob tuaj yeem ntsuas dej nrog cov pa phem. Nws muaj cov koob npe nrov thiab paub tab technology vim nws muaj zog siv tau thiab ntsuas ntau yam.
5. Txoj kev tiv thaiv
Txoj kev no yog ib qho kev siv tshuab uas tau siv rau xyoo tas los no. Nws lub hauv paus ntsiab lus yog ntsuas qhov sib txawv ntawm cov qauv ua ntej thiab tom qab ultraviolet oxidation nyob rau hauv qhov chaw ntawm qhov kub thiab txias. Txawm li cas los xij, txoj kev no muaj cov kev cai nruj ntawm qhov chaw ntawm lub cev dej yuav tsum tau ntsuas, tsuas yog cov dej huv huv thiab cov dej ntshiab tuaj yeem siv tau, thiab cov kev taw qhia ntawm daim ntawv thov yog ib leeg.
6. Ultraviolet txoj kev
Kev tshawb nrhiav thiab kev tsom xam ntawm TOC los ntawm UV nqus spectroscopy tuaj yeem taug qab mus rau xyoo 1972. Dobbs li al. tau kawm txog kev sib raug zoo ntawm UV absorbance tus nqi (A) ntawm 254 nm thiab TOC hauv cov dej ntws thib ob ntawm kev kho dej hauv nroog thiab dej ntws. Tom qab ntau xyoo ntawm txoj kev loj hlob, daim ntawv thov ntawm txoj kev no tau tsim sai heev vim nws qhov zoo ntawm kev ceev ceev, tsis yog - kev ntsuas kev sib cuag, rov ua tau zoo, thiab kev saib xyuas qis.
7. Txoj kev coj ua
Cov cuab yeej tseem ceeb koom nrog hauv txoj kev no yog cov khoom siv hluav taws xob, uas muaj cov khoom siv hluav taws xob siv hluav taws xob, ntsuas hluav taws xob, roj-cov kua cais tawm, cov ion txauv resin, cov tshuaj tiv thaiv coil, thiab NaOH conductivity kua. Qhov zoo ntawm conductivity hlwb yog tus nqi qis thiab yooj yim popularization, tab sis tsis zoo stability.
8. Ozone oxidation txoj kev
Ua kom zoo dua ntawm cov khoom muaj zog oxidizing ntawm ozone thiab siv ozone oxidation raws li kev tshawb nrhiav thev naus laus zis ntawm TOC, nws muaj cov tshuaj tiv thaiv ceev ceev, tsis muaj kuab paug thib ob, thiab daim ntawv thov siab. Yog li ntawd, daim ntawv thov kev cia siab ntawm txoj kev no yog qhov zoo heev.
9. Ultrasonic cavitation sonoluminescence txoj kev
Sonochemistry tau dhau los ua kev tshawb fawb loj. Kev tshawb fawb ntawm sonoluminescence tau koom nrog hauv kev tiv thaiv ib puag ncig. Cov kws tshawb fawb cuam tshuam hauv kuv lub teb chaws tau ua haujlwm ntau hauv kev tshawb fawb thiab siv kev tshawb fawb. Txoj kev tshwj xeeb no tau lees paub los ntawm cov kws tshaj lij. . Nws muaj qhov zoo ntawm qhov tsis muaj pa phem, tsis tas yuav ntxiv cov tshuaj reagents, thiab cov khoom siv yooj yim.
10. Supercritical dej oxidation
Tsim nyog rau kev siv cov salinity siab, Supercritical Water Oxidation (SCWO) thev naus laus zis yog siv los kho cov dej khib nyiab loj, sludge thiab cov av paug. Tam sim no siv nyob rau hauv kev lag luam kuaj TOC analyzers, thaum qhov kub thiab txias ntawm cov dej txhaj tshuaj yog nce siab tshaj qhov tseem ceeb ntawm cov dej (375℃thiab 3,200psi), cov organic pov tseg yog sai thiab tag oxidized los ntawm oxidant nyob rau hauv dej. Cov khoom ntawm cov dej supercritical tuaj yeem ua rau cov organic carbon oxidized rau carbon dioxide zoo heev thiab sai, txawm tias muaj cov tshuaj chlorides thiab lwm yam tshuaj inorganic uas tuaj yeem ua rau muaj kev cuam tshuam tsis zoo thaum siv cov uas tsis yog -supercritical oxidation txoj kev.