Kodi Polyacrylamide imagwiritsidwa ntchito bwanji pochiza madzi?

Polyacrylamide(PAM) ndi polima wolemera kwambiri wa mamolekyulu womwe umagwiritsidwa ntchito kwambiri pokonza madzi m'magawo osiyanasiyana. Uli ndi mitundu yosiyanasiyana ya kulemera kwa mamolekyulu, ma ayoni, ndi kapangidwe kake kuti zigwirizane ndi zochitika zosiyanasiyana zogwiritsidwa ntchito ndipo ukhoza kusinthidwa kuti ugwirizane ndi zochitika zapadera. Kudzera mu kuletsa magetsi ndi kulowetsedwa kwa mamolekyulu ndi ma plagi, PAM ikhoza kulimbikitsa kusonkhana mwachangu ndi kusungunuka kwa tinthu tomwe timapachikidwa, ndikukweza ubwino wa madzi. Nkhaniyi ifotokoza momwe PAM imagwirira ntchito komanso zotsatira zake pa kukonza madzi m'magawo osiyanasiyana.

Poyeretsa zinyalala zapakhomo, PAM imagwiritsidwa ntchito makamaka poyeretsa zinyalala ndi kuchotsa madzi oundana. Mwa kuchepetsa mphamvu zamagetsi ndikugwiritsa ntchito mphamvu zomangira, PAM imatha kufulumizitsa kusonkhana kwa zinthu zolimba zomwe zimapachikidwa m'madzi kuti zipange tinthu tating'onoting'ono tating'onoting'ono. Tinthu tating'onoting'ono timeneti ndi tosavuta kukhazikika ndikusefa, motero timachotsa zinyalala m'madzi ndikukwaniritsa cholinga choyeretsa madzi. Kugwiritsa ntchito PAM kungathandize kukonza bwino ntchito yoyeretsa zinyalala ndikuchepetsa ndalama zotsukira.

Pa ntchito yopanga mapepala, PAM imagwiritsidwa ntchito makamaka ngati chothandizira kusunga zinthu, chothandizira zosefera, chosungunula zinthu, ndi zina zotero. Powonjezera PAM, kuchuluka kwa zodzaza ndi ulusi wabwino m'mapepala kumatha kuchepetsedwa, kuchepetsa kugwiritsa ntchito zinthu zopangira, ndikuwonjezera kusefa ndi madzi m'thupi. Kuphatikiza apo, PAM ikhoza kugwira ntchito ngati chokhazikika cha polima chosagwiritsa ntchito silicon mu njira yoyeretsera, ndikuwonjezera kuyera ndi kuwala kwa pepala.

Mu mankhwala ophera mowa m'mafakitale,PAMimagwiritsidwa ntchito makamaka mu ndondomeko yothira madzi m'matope. Pa njira zopangira mowa ndi zinthu zosiyanasiyana zopangira ndi njira zochizira madzi otayira, ndikofunikira kusankha cationic polyacrylamide yokhala ndi ionicity yoyenera komanso kulemera kwa mamolekyulu. Kuyesa kusankha kudzera mu kuyesa koyesera kwa beaker ndi njira imodzi yomwe imagwiritsidwa ntchito kwambiri.

Madzi otayira chakudya, okhala ndi zinthu zambiri zachilengedwe komanso zinthu zolimba zomwe zimapachikidwa, amafunika njira zoyenera zochizira. Njira yachikhalidwe imaphatikizapo kuyika kwa dothi m'nthaka ndi kuwiritsa kwa biochemical. Komabe, pakugwiritsa ntchito moyenera, ma polymer flocculants nthawi zambiri amafunikira pakusowa madzi m'madzi komanso ntchito zina zochizira. Ma flocculants ambiri omwe amagwiritsidwa ntchito munjira iyi ndi zinthu za cationic polyacrylamide. Kusankha chinthu choyenera cha polyacrylamide kumafuna kuganizira momwe kusintha kwa nyengo (kutentha) kumakhudzira kusankha flocculant, kusankha kulemera koyenera kwa mamolekyulu ndi mtengo wolipirira kutengera kukula kwa floc komwe kumafunikira ndi njira yochizira, ndi zina. Kuphatikiza apo, chisamaliro chiyenera kuperekedwa ku nkhani monga zofunikira pakupanga ndi zida ndi kugwiritsa ntchito ma flocculants.

Mu madzi otayira amagetsi ndi amagetsi, PAM imagwiritsidwa ntchito makamaka ngatiFlocculantndi chotenthetsera madzi. Mwa kuchepetsa mphamvu zamagetsi ndikugwiritsa ntchito mphamvu zomangira madzi, PAM imatha kusonkhanitsa mwachangu ndikukhazikitsa ma ayoni achitsulo cholemera m'madzi otayidwa. Munjira iyi, nthawi zambiri ndikofunikira kuwonjezera sulfuric acid kumadzi otayidwa kuti musinthe pH kukhala 2-3 kenako ndikuwonjezera chochepetsera. Mu thanki yotsatira yochitira zinthu, gwiritsani ntchito NaOH kapena Ca(OH)2 kuti musinthe pH kukhala 7-8 kuti mupange ma precipitate a Cr(OH)3. Kenako onjezerani coagulant kuti muchepetse ndikuchotsa Cr(OH)3. Kudzera mu njira zochizira izi, PAM imathandizira kukonza magwiridwe antchito a electronic ndi electroplating water treatment ndikuchepetsa kuwonongeka kwa ma ayoni achitsulo cholemera ku chilengedwe.