Nrog rau kev loj hlob sai ntawm kev lag luam thiab kev loj hlob hauv nroog, cov dej khib nyiab uas muaj ntau qhov sib xyaw ua ke tau dhau los ua teeb meem loj rau ib puag ncig. Cov dej khib nyiab uas muaj ntau qhov sib xyaw ua ke tsis yog tsuas yog muaj cov organic matter, inorganic matter, heavy metal thiab lwm yam tshuaj lom neeg xwb, tab sis nws qhov kev sib xyaw ua ke tseem nyob deb tshaj qhov tsim thiab kev kho cov peev xwm ntawm cov chaw kho dej khib nyiab ib txwm muaj. Yog li ntawd, qhov kev kho dej khib nyiab uas muaj ntau qhov sib xyaw ua ke thiab kev tso tawm raws li tus qauv yog qhov tseem ceeb heev.
1. Lub ntsiab lus thiab cov yam ntxwv ntawm cov dej khib nyiab uas muaj ntau cov pa phem Cov dej khib nyiab uas muaj ntau cov pa phem, cov hlau hnyav, cov tshuaj lom thiab cov tshuaj phem thiab lwm yam pa phem. Cov pa phem hauv cov dej khib nyiab ntau dua li cov dej khib nyiab dav dav, thiab nws nyuaj rau kho. Tej zaum yuav muaj ntau hom pa phem sib txawv, xws li cov pa phem, cov hlau hnyav, cov tshuaj radioactive, thiab lwm yam. Qee cov pa phem yuav muaj cov teebmeem inhibitory rau cov kab mob me me thiab cuam tshuam rau cov teebmeem ntawm kev kho mob biological, uas nyuaj rau tshem tawm los ntawm cov txheej txheem kho mob biological.
2. Cov xwm txheej tsim cov dej khib nyiab uas muaj cov tshuaj lom neeg ntau: cov dej khib nyiab uas tsim tawm hauv cov txheej txheem ntawm kev tsim tshuaj feem ntau muaj ntau cov organic matter, cov hlau hnyav thiab lwm yam pa phem. Kev lag luam tshuaj: cov dej khib nyiab tshuaj feem ntau muaj cov organic matter ntau, cov tshuaj tua kab mob, thiab lwm yam, uas nyuaj rau kho. Kev lag luam zas xim thiab textile: cov dej khib nyiab uas tsim los ntawm cov lag luam no feem ntau muaj cov organic matter thiab chromaticity uas lwj tau. Electroplating thiab metallurgy: Cov dej khib nyiab uas muaj cov hlau hnyav thiab cov tshuaj lom yog tsim tawm thaum lub sijhawm electroplating thiab metallurgy.
3. Cov thev naus laus zis tseem ceeb ntawm cov khoom siv kho dej khib nyiab siab Cov khoom siv kho dej khib nyiab siab, feem ntau yog siv cov txheej txheem lub cev lossis tshuaj lom neeg los tshem tawm cov khoom loj, cov khoom dai hauv cov dej khib nyiab, los tsim cov xwm txheej rau kev kho tom qab. Nws tseem yuav siv cov thev naus laus zis oxidation siab heev xws li Fenton oxidation, ozone oxidation, los ntawm kev tsim cov oxidant muaj zog los hloov cov khoom siv refractory organic mus rau hauv cov khoom yooj yim degradable. Siv cov kev ua haujlwm metabolic ntawm cov kab mob me me los tshem tawm cov khoom siv organic hauv cov dej khib nyiab. Rau cov dej khib nyiab siab, cov txheej txheem anaerobic thiab aerobic ua ke yuav raug siv los txhim kho cov txiaj ntsig kho. Cov tshuaj tic hauv cov dej khib nyiab kuj tseem tuaj yeem tshem tawm los ntawm cov txheej txheem lub cev los ntawm cov thev naus laus zis sib cais membrane xws li ultrafiltration thiab rov qab osmosis. Los ntawm kev nag lossis daus tshuaj, kev pauv ion, adsorption thiab lwm yam thev naus laus zis kho hlau hnyav, siv los tshem tawm cov hlau hnyav ions hauv cov dej khib nyiab. Yog li ntawd, rau cov khoom siv kho dej khib nyiab siab, nws yog ib qho tseem ceeb heev kom ntseeg tau tias cov dej khib nyiab mus txog tus qauv, xaiv cov txheej txheem kho kom zoo, tswj hwm cov txheej txheem kho kom zoo, txhawb nqa kev kho ua ntej, ua kom zoo dua cov kev ua haujlwm thiab kev kuaj pom thiab kev soj ntsuam tas li. Yog tias pom muaj teeb meem, ua cov kev ntsuas raws sijhawm los kho.
Vim yog qhov tshwj xeeb ntawm nws cov dej zoo, kev kho dej khib nyiab siab muaj cov kev cai nruj rau cov khoom siv. Nws yuav tsum muaj cov khoom siv thev naus laus zis zoo, kev paub txog qhov project, thiab lub tswv yim ntawm kev hloov kho cov kev ntsuas rau cov xwm txheej hauv zos kom ntseeg tau tias cov dej khib nyiab ntawm cov khoom siv kho dej khib nyiab siab ua tau raws li tus qauv. Jiading kev tiv thaiv ib puag ncig yog lub Hoobkas laus hauv kev lag luam kho dej khib nyiab rau kaum xyoo, nyob hauv xeev Jiangsu, hluav taws xob rau tag nrho lub tebchaws, ntsib txawv teb chaws, muaj pab pawg tswj hwm cov khoom siv thev naus laus zis nruj.
Lub sijhawm tshaj tawm: Lub Peb Hlis-12-2024