Nrog rau kev txhim kho qib ntawm industrialization, ntau thiab ntau lub tuam txhab pib them nyiaj rau tej teeb meem kev tiv thaiv ib puag ncig, thiab nquag txhawb kev ua haujlwm zoo thiab ib puag ncig tus phooj ywg technology thiab khoom siv hauv cov txheej txheem tsim khoom. Lub tshuab hnyav rov qab yog ib qho khoom siv tiv thaiv ib puag ncig zoo tshaj plaws. Nws tuaj yeem rov qab tau cov kuab tshuaj zoo, ua tiav lub hom phiaj ntawm kev txuag cov peev txheej thiab kev tiv thaiv ib puag ncig, thiab nyiam los ntawm kev lag luam thiab tib neeg. Nyob rau hauv cov nqe lus ntawm qhib roj thiab dej, cov kuab tshuaj rov qab tshuab kuj muaj ib tug zoo heev daim ntawv thov kev cia siab.
Kev qhib cov roj thiab dej yog qhov tseem ceeb txuas hauv cov txheej txheem tsim khoom. Seb nws yog textile, tshuaj, tshuaj los yog luam ntawv industries, ib tug loj tus naj npawb ntawm cov roj-dej sib tov yog xav tau. Yuav ua li cas nrog cov roj-dej sib tov tau dhau los ua cov kev taw qhia uas cov lag luam tab tom sim tshawb nrhiav. Cov kev kho ib txwm siv yog nag lossis daus, adsorption thiab distillation, thiab lwm yam, tab sis cov txheej txheem no muaj kev ua haujlwm tsawg, kev nqis peev siab thiab tus nqi siab. Nyob rau hauv sib piv, daim ntawv thov ntawm cov kuab tshuaj rov qab tshuab yog obviously txhim khu kev qha thiab npaum. Nws tuaj yeem sib cais sai sai thiab ntxuav cov roj-dej sib tov, rov qab cov kuab tshuaj hauv cov roj thiab dej, thiab ua tiav lub hom phiaj ntawm kev txuag nyiaj, kev tiv thaiv ib puag ncig thiab txo qis emission. Hauv kev lag luam roj thiab dej, lub tshuab hnyav rov qab tau them nyiaj ntau dua thiab siv los ntawm tib neeg vim nws cov txiaj ntsig zoo thiab txhim khu kev qha.
Cov txheej txheem rov qab siv lub tshuab ua kom rov zoo, kuj yuav tsum tau them sai sai rau qee cov ntsiab lus. Piv txwv li, rau qhov sib txawv ntawm cov roj thiab dej sib tov, xaiv cov txheej txheem rov ua dua thiab cov cuab yeej tsim nyog los txhim kho kev ua haujlwm thiab ua haujlwm; Tsis tas li ntawd xyuam xim rau kev tu thiab tu cov cuab yeej los xyuas kom meej lub cev ua haujlwm ntawm cov cuab yeej siv thiab txuas lub neej kev pab cuam.
