Kodi Polyacrylamide amagwiritsidwa ntchito pochiza madzi?

Polyacrylamide(PAM) ndi polymer yolemera kwambiri yomwe imagwiritsidwa ntchito kwambiri pochiza madzi m'magawo osiyanasiyana. Ili ndi masikelo osiyanasiyana a mamolekyu, ma ionicities, ndi kapangidwe kake kuti igwirizane ndi zochitika zosiyanasiyana zogwiritsiridwa ntchito ndipo imatha kusinthidwanso kuti ikhale yapadera. Kudzera magetsi neutralization ndi polima adsorption ndi mlatho, PAM akhoza kulimbikitsa mofulumira agglomeration ndi sedimentation wa inaimitsidwa particles, kuwongolera madzi khalidwe. Nkhaniyi ifotokoza za momwe PAM imagwirira ntchito komanso zomwe zimachitika pakumwa madzi m'magawo osiyanasiyana.

Pochiza zimbudzi zapakhomo, PAM imagwiritsidwa ntchito makamaka pakugwetsa matope komanso kutsitsa madzi amatope. Ndi neutralizing katundu magetsi ndi ntchito adsorbing bridging zotsatira, PAM akhoza imathandizira agglomeration ya zolimba inaimitsidwa m'madzi kupanga flocs lalikulu particles. Ma flocs awa ndi osavuta kukhazikika ndikusefa, potero amachotsa zonyansa m'madzi ndikukwaniritsa cholinga choyeretsa madzi. Kugwiritsiridwa ntchito kwa PAM kumatha kupititsa patsogolo kayendedwe ka madzi onyansa komanso kuchepetsa ndalama zothandizira.

Pankhani yopanga mapepala, PAM imagwiritsidwa ntchito makamaka ngati chothandizira posungira, chothandizira fyuluta, dispersant, ndi zina zotero. Powonjezera PAM, kusungidwa kwa zodzaza ndi ulusi wabwino pamapepala kumatha kusintha, kuchepetsa kugwiritsidwa ntchito kwa zipangizo, ndi kulimbikitsa. kusefa ndi kuchepa madzi m'thupi kwa zamkati. Kuphatikiza apo, PAM imatha kugwira ntchito ngati sisilicon polima stabilizer pakupanga bleaching, kuwongolera kuyera ndi kuwala kwa pepala.

M'malo opangira madzi otayira mowa,PAMchimagwiritsidwa ntchito makamaka mu sludge dehydration process. Kwa njira zopangira mowa ndi zinthu zosiyanasiyana zopangira komanso njira zochizira madzi otayira, ndikofunikira kusankha cationic Polyacrylamide yokhala ndi ionicity yoyenera komanso kulemera kwa maselo. Kuyesa kusankha pogwiritsa ntchito kuyesa kwa beaker ndi imodzi mwa njira zomwe zimagwiritsidwa ntchito.

Madzi otayira m'zakudya, okhala ndi zinthu zambiri zakuthupi komanso zolimba zoyimitsidwa, amafunikira njira zoyenera zochizira. Njira yachikale imaphatikizapo kusungunuka kwa thupi ndi kuwira kwa biochemical. Komabe, pakugwiritsa ntchito, ma polymer flocculants nthawi zambiri amakhala ofunikira pakutha kwa matope ndi ntchito zina zamankhwala. Ambiri mwa flocculants ntchito njirayi ndi cationic Polyacrylamide mndandanda mankhwala. Kusankha mankhwala oyenera Polyacrylamide kumafuna kuganizira mmene kusintha kwa nyengo (kutentha) pa kusankha flocculant, kusankha yoyenera maselo kulemera ndi mtengo mtengo zochokera floc kukula chofunika ndi ndondomeko mankhwala, ndi zinthu zina. Kuphatikiza apo, ziyenera kukumbukiridwa pazinthu monga njira ndi zida zofunikira komanso kugwiritsa ntchito ma flocculants.

M'madzi amagetsi ndi electroplating, PAM imagwiritsidwa ntchito makamaka ngati aFlocculantndi cholowa. Pochepetsa mphamvu zamagetsi ndikugwiritsa ntchito ma adsorbing bridging, PAM imatha kuphatikizira ndikukhazikitsa ma ion zitsulo zolemera m'madzi onyansa. Pochita izi, nthawi zambiri ndikofunikira kuwonjezera sulfuric acid m'madzi otayidwa kuti musinthe pH kukhala 2-3 ndikuwonjezera chochepetsera. Mu tanki yotsatira, gwiritsani ntchito NaOH kapena Ca(OH)2 kuti musinthe pH kukhala 7-8 kuti mupange Cr(OH)3 precipitates. Kenako onjezani coagulant kuti muchepetse ndikuchotsa Cr(OH)3. Kudzera m'njira zochizira izi, PAM imathandizira kukonza magwiridwe antchito amagetsi ndi electroplating kuthira madzi oyipa ndikuchepetsa kuwonongeka kwa ma ion zitsulo zolemera ku chilengedwe.