Ukadaulo ndi Njira Zochiritsira Madzi Otayidwa a Tannery

Mkhalidwe wa mafakitale ndi mawonekedwe a madzi otayira a zinyalala
M'moyo watsiku ndi tsiku, zinthu zopangidwa ndi zikopa monga matumba, nsapato zachikopa, zovala zachikopa, masofa achikopa, ndi zina zotero zili paliponse. M'zaka zaposachedwapa, makampani opanga zikopa apita patsogolo mofulumira. Nthawi yomweyo, kutulutsa madzi otayira a khungu pang'onopang'ono kwakhala chimodzi mwa zinthu zofunika kwambiri zomwe zimayambitsa kuipitsa mafakitale.
Kupaka utoto nthawi zambiri kumaphatikizapo magawo atatu a kukonzekera, kupukuta utoto ndi kumaliza. Mu gawo lokonzekera lisanafike kupukuta utoto, zinyalala zimachokera makamaka pakutsuka, kunyowetsa, kuchotsa tsitsi, kuchotsa laimu, kuchotsa limi, kufewetsa ndi kuchotsa mafuta; zinthu zoipitsa zazikulu zimaphatikizapo zinyalala zachilengedwe, zinyalala zosapangidwa ndi zinthu zachilengedwe ndi zinthu zachilengedwe. Madzi otayira omwe ali mu gawo lopaka utoto makamaka amachokera pakutsuka, kutsuka, ndi kupukuta utoto; zinthu zoipitsa zazikulu ndi mchere wosapangidwa ndi zinthu zachilengedwe ndi chromium yachitsulo cholemera. Madzi otayira omwe ali mu gawo lomaliza makamaka amachokera pakutsuka, kufinya, kupukuta, kupukuta mafuta ndi kuchotsa fumbi la zinyalala, ndi zina zotero. Zinthu zoipitsa zimaphatikizapo utoto, mafuta ndi zinthu zachilengedwe. Chifukwa chake, madzi otayira a zinyalala ali ndi mawonekedwe a kuchuluka kwa madzi, kusinthasintha kwakukulu kwa ubwino wa madzi ndi kuchuluka kwa madzi, kuchuluka kwa kuipitsidwa kwakukulu, kuchuluka kwa alkalinity, chroma yambiri, kuchuluka kwa zinthu zolimba zomwe zimayimitsidwa, kuwonongeka kwabwino kwachilengedwe, ndi zina zotero, ndipo ali ndi poizoni winawake.
Madzi otayira okhala ndi sulfure: Madzi otayira a limu omwe amapangidwa ndi phulusa losungunuka ndi alkali pochotsa tsitsi pakhungu ndi madzi otayira ofananira nawo;
Kuchotsa mafuta m'madzi otayira: Pakuchotsa mafuta m'madzi otayira komanso kukonza ubweya, madzi otayira amapangidwa pochotsa chikopa ndi mafuta osaphika ndi mankhwala oyeretsera komanso madzi otayira ofanana nawo.
Madzi otayira okhala ndi chromium: mowa wotayira wa chrome womwe umapangidwa poyenga utoto wa chrome ndi chrome retanning, ndi madzi otayira ofanana nawo poyenga.
Madzi otayira okwana: mawu ofotokozera madzi otayira osiyanasiyana opangidwa ndi makampani opanga utoto ndi ubweya kapena madera ogwirira ntchito limodzi, ndipo amatumizidwa mwachindunji kapena mwanjira ina ku mapulojekiti oyeretsera madzi otayira okwana (monga madzi otayira ogwiritsidwa ntchito popanga, zimbudzi zapakhomo m'mafakitale).