Polyaluminium Chloride (PAC)
Polyaluminium chloride (PAC), yotchedwa polyaluminium mwachidule, Poly Aluminium Chloride dosing In Water Treatment, ili ndi mankhwala akuti Al₂Cln(OH)₆-n. Polyaluminiyamu Chloride Coagulant ndi inorganic polima mankhwala madzi wothandizila ndi lalikulu molekyulu kulemera ndi mkulu mtengo opangidwa ndi bridging zotsatira za ayoni hydroxide ndi polymerization wa polyvalent anions. Poly Aluminium Chloride Pac imatha kugawidwa kukhala yolimba komanso yamadzimadzi m'mawonekedwe. Solid polyaluminium Yellow, imvi-wobiriwira, ufa woderapo. Pac madzi amakhudzidwa mosavuta ndi chinyezi ndipo amasungunuka mosavuta m'madzi. Dongosolo la hydrolysis limatsagana ndi njira zakuthupi ndi zamankhwala monga electrochemistry, agglutination, adsorption, ndi mpweya, ndipo imakhala ndi zida zamphamvu zotsatsira.
1. Njira yochitira zinthu
Yankho lamadzi la PAC mankhwala ndi mankhwala a hydrolysis pakati pa FeCl₃ ndi Al(OH) ₃, okhala ndi colloidal charge, motero amakhala ndi kutsatsa mwamphamvu kwa zolimba zoyimitsidwa m'madzi, kuti akwaniritse cholinga chophatikiza zolimba zoyimitsidwa m'madzi.
2. Zogulitsa Zamalonda
● Polyaluminium chloride imakhala yosasunthika m'malo otentha, ndipo siiwonongeka ikasungidwa kwa nthawi yaitali. Polyaluminiyamu yowoneka bwino imatenga chinyezi mosavuta, koma sichiwonongeka, ndipo ilibe poizoni komanso yopanda vuto.
● Mtengo wa pH wa madzi oyenerera ndi 4-14, koma pH mtengo wa mankhwala abwino kwambiri ndi 6-8.
● Poly Aluminiyamu Chloride Powder ali ndi makhalidwe a mlingo waung'ono, mtengo wotsika, ntchito zapamwamba, ntchito yabwino, kugwiritsidwa ntchito kwakukulu ndi kutsika kwa corrosiveness.
Polyacrylamide (PAM)
Polyacrylamide (PAM) /nonionic polyacrylamide/cation polyacrylamide/anionic polyacrylamide,alias flocculant No. 3, ndi madzi sungunuka liniya polima wopangidwa ndi ufulu kwakukulu polymerization wa acrylamide (AM) monoma. Coagulation ndi flocculation ndondomeko mu madzi mankhwala,Polyacrylamide sds ali flocculation wabwino ndipo akhoza kuchepetsa mikangano pakati pa zakumwa Kukana akhoza kugawidwa m'magulu anayi: anionic, cationic, nonionic ndi amphoteric malinga ndi ionic katundu.
Polyacrylamide ndi woyera ufa tinthu, amene akhoza kusungunuka m'madzi mu gawo lililonse, njira amadzimadzi ndi yunifolomu ndi mandala, ndi mamasukidwe akayendedwe a amadzimadzi njira ukuwonjezeka kwambiri ndi kuwonjezeka wachibale maselo kulemera kwa polima. PAM sisungunuka mu zosungunulira zambiri za organic, monga formaldehyde, ethanol, acetone, ether, etc.
1. Njira yochitira zinthu
Polyacrylamide ndi polima wosungunuka m'madzi kapena polyelectrolyte. Pali chiwerengero cha magulu polar mu PAM maselo unyolo, amene angathe adsorb ndi particles olimba inaimitsidwa mu zimbudzi, kupanga milatho pakati pa particles kapena mwa mlandu neutralization, kuti particles akhoza agglomerate kupanga flocs lalikulu. Choncho, polyacrylamide akhoza imathandizira zolimba inaimitsidwa. The sedimentation wa sing'anga particles ali ndi zotsatira zoonekeratu kuti imathandizira kumveketsa yankho ndi kulimbikitsa kusefera.
2. Zolemba
Polyacrylamide ili ndi poizoni unpolymerized acrylamide monoma. M'madzi akumwa omwe atchulidwa m'dziko langa, kuchuluka kovomerezeka ndi 0.01mg/L. Pofuna kupewa kuwonongeka kwa polyacrylamide, kutentha kosungirako kwake kwamadzimadzi kuyenera kuyendetsedwa kuti kusakhale pamwamba pa 40 ° C. Pofuna kupewa kuwala kwa dzuwa, pang'onopang'ono stabilizer, monga sodium thiocyanate, sodium nitrite, etc., akhoza kuwonjezeredwa ku yankho. Ufa wolimba wa Polyacrylamide uyenera kupakidwa m’ng’oma zachitsulo zokutidwa ndi matumba a polyethylene oteteza chinyezi kapena zomangika ndi zigawo za polyethylene, ndi kusindikizidwa kuti zisamakhale ndi chinyezi chambiri.
Polyacrylamide yamadzimadzi iyenera kupakidwa ndikuyikidwa mumigolo yamatabwa kapena migolo yachitsulo. Nthawi yosungira ndi pafupi miyezi 3 mpaka 6. Iyenera kugwedezeka musanagwiritse ntchito. Kutentha kosungirako sikuyenera kupitirira 32°C ndi kutsika kuposa 0°C.
Chigamulo cha flocculation zotsatira za PAC ndi PAM
EzotsatiraItem | Kumwa kokha ndi PAC | PAC+PAM |
Ma flocs ndi ang'onoang'ono, koma odziyimira pawokha komanso ofanana | Mlingo woyenera | Chiyerekezo cha dosing cha PAC ndi PAM sichoyenera, ndipo chiŵerengero cha dosing chiyenera kusinthidwa. |
Masamba owoneka bwino, kusungunuka kwamadzi kwapakatikati | Kuchuluka kwa PAC | Kusakwanira kwa PAM |
Masamba owoneka bwino, madzi apakatikati amakhala oyera | Mlingo woyenera | Mlingo woyenera |
Floc ili ndi chodabwitsa chopachikidwa pakhoma la beaker | Zosaoneka | Kuchuluka kwa PAM |
Chinyezi chamadzimadzi | Zosaoneka | Kuchuluka kwa PAC |
Dothi lolimba, lowoneka bwino kwambiri | Mlingo woyenera | Mlingo woyenera |
Mvula ndi yowawa ndipo champhamvu kwambiri ndi mitambo | Mwina PAC dosing yosakwanira | Kusakwanira kwa PAM dosing kapena kosayenera dosing chiŵerengero cha PAC ndi PAM |
Mphepo yake ndi yaying'ono ndipo yamphamvu kwambiri imamveka bwino | Mlingo woyenera | Mlingo woyenera |
Mphepete mwamvulayo ndi yabwino ndipo yamphamvu kwambiri ndi mitambo | Kusakwanira kwa mlingo wa PAC | Kusakwanira kwa PAM |
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Nthawi yotumiza: Mar-11-2022