Kev lag luam xwm txheej thiab cov yam ntxwv ntawm tannery khib nyiab
Hauv lub neej niaj hnub, cov khoom siv tawv xws li hnab, khau tawv, khaub ncaws tawv, tawv sofas, thiab lwm yam. Nyob rau hauv xyoo tas los no, kev lag luam tawv tau tsim sai heev. Nyob rau tib lub sijhawm, qhov tso tawm ntawm cov dej khib nyiab tannery tau maj mam dhau los ua ib qho tseem ceeb ntawm kev ua qias tuaj.
Tanning feem ntau suav nrog peb theem ntawm kev npaj, tanning thiab tiav. Hauv seem kev npaj ua ntej tanning, cov dej phwj tuaj yog los ntawm kev ntxuav, soaking, dehairing, liming, deliming, softening thiab degreasing; Cov pa phem tseem ceeb suav nrog cov pov tseg cov organic, cov pov tseg inorganic thiab cov organic tebchaw. Cov dej khib nyiab hauv qhov tanning feem ntau yog los ntawm kev ntxuav, pickling, thiab tanning; Cov pa phem tseem ceeb yog cov ntsev inorganic thiab hnyav hlau chromium. Cov dej khib nyiab hauv qhov ua tiav feem ntau yog los ntawm kev ntxuav, squeezing, dyeing, fatliquoring thiab detusting dej phwj, thiab lwm yam. Cov pa phem muaj xws li dyes, roj thiab organic compounds. Yog li ntawd, tannery wastewater muaj cov yam ntxwv ntawm cov dej ntim loj, kev hloov pauv loj hauv cov dej zoo thiab cov dej ntim, muaj kuab paug siab, siab alkalinity, siab chroma, siab cov ntsiab lus ntawm cov khib nyiab tshem tawm, biodegradability zoo, thiab lwm yam, thiab muaj qee yam toxicity.
Sulfur-muaj cov dej khib nyiab: Liming cov kua khib nyiab uas tsim los ntawm cov hmoov tshauv-alkali dehairing hauv cov txheej txheem tanning thiab cov txheej txheem ntxuav cov dej khib nyiab;
Degreasing cov dej khib nyiab: Hauv cov txheej txheem degreasing ntawm tanning thiab fur processing, cov kua khib nyiab tsim los ntawm kev kho cov tawv nqaij thiab cov roj nrog surfactant thiab cov dej khib nyiab ntawm cov txheej txheem ntxuav.
Chromium-muaj cov dej khib nyiab: cov dej khib nyiab chrome tsim nyob rau hauv cov txheej txheem chrome tanning thiab chrome retanning, thiab cov dej khib nyiab sib thooj hauv cov txheej txheem ntxuav.
Comprehensive wastewater: ib lub ntsiab lus dav dav rau ntau yam dej khib nyiab tsim los ntawm cov chaw ua haujlwm tanning thiab fur ua lag luam lossis cov chaw ua haujlwm hauv nruab nrab, thiab ncaj qha lossis ncaj qha tawm mus rau kev kho dej khib nyiab tag nrho (xws li cov txheej txheem tsim cov dej khib nyiab, dej phwj hauv tsev).
Post lub sij hawm: Jan-17-2023
