Ndingayikhetha njani uhlobo lwePolyacrylamide?

I-Polyacrylamide(i-PAM) idla ngokwahlulahlulwa ibe yi-anionic, i-cationic, kunye ne-nonionic ngokwe-ion yohlobo lwe-ion. Isetyenziswa kakhulu ekufudumaleni kwamanzi. Xa ukhetha, iintlobo ezahlukeneyo zamanzi amdaka zinokukhetha iintlobo ezahlukeneyo. Kufuneka ukhethe i-PAM efanelekileyo ngokweempawu zelindle lakho. Kwangaxeshanye, kufuneka ucacise ukuba yeyiphi inkqubo eza kongezwa kuyo i-polyacrylamide kunye nenjongo ofuna ukuyiphumeza ngokuyisebenzisa.

Izalathisi zobugcisa ze-polyacrylamide ngokubanzi ziquka ubunzima be-molecular, i-degree of hydrolysis, i-ionicity, i-viscosity, umxholo we-residual monomer, njl. Ezi zalathisi kufuneka zicaciswe ngokwe-water waste oyinyangayo.

1. Ubunzima be-molecular/ukuxinana

I-Polyacrylamide ineentlobo ngeentlobo zobunzima beemolekyuli, ukusuka kwezantsi ukuya kwephezulu kakhulu. Ubunzima beemolekyuli buchaphazela ukusebenza kweepolymers kwizicelo ezahlukeneyo. I-polyacrylamide enobunzima beemolekyuli ezininzi idla ngokusebenza ngakumbi kwinkqubo yokuqunjelwa kuba imixokelelwane yazo yeepolymer inde kwaye inokudibanisa amasuntswana amaninzi kunye.

I-viscosity yesisombululo se-PAM iphezulu kakhulu. Xa i-ionization izinzile, ubunzima be-molecular ye-polyacrylamide bukhulu, kokukhona i-viscosity yesisombululo sayo iphezulu. Oku kungenxa yokuba uthotho lwe-macromolecular ye-polyacrylamide inde kwaye incinci, kwaye ukumelana nokuhamba kwisisombululo kukhulu kakhulu.

2. Umgangatho we-hydrolysis kunye ne-ionicity

I-ionity ye-PAM inefuthe elikhulu kwimpembelelo yayo yokusetyenziswa, kodwa ixabiso layo elifanelekileyo lixhomekeke kuhlobo kunye nohlobo lwezinto eziphathweyo, kwaye kukho amaxabiso ahlukeneyo afanelekileyo kwiimeko ezahlukeneyo. Xa amandla e-ionic ezinto eziphathweyo ephezulu (izinto ezingaphiliyo), i-ionity ye-PAM esetyenzisiweyo kufuneka ibe phezulu, kungenjalo kufuneka ibe phantsi. Ngokubanzi, inqanaba le-anion libizwa ngokuba yi-degree of hydrolysis, kwaye iqondo le-ion libizwa ngokuba yi-degree of cation.

Indlela yokukhetha i-polyacrylamidekuxhomekeke kubungakanani bee-colloids kunye nezinto eziqinileyo ezixhonyiweyo emanzini. Emva kokuqonda ezi mpawu zingasentla, ungayikhetha njani i-PAM efanelekileyo?

1. Qonda umthombo welindle

Okokuqala, simele siqonde umthombo, uhlobo, ukwakheka, umxholo oqinileyo, njl.njl. wodaka.

Ngokubanzi, i-cationic polyacrylamide isetyenziselwa ukunyanga udaka oluyi-organic, kwaye i-anionic polyacrylamide isetyenziselwa ukunyanga udaka oluyi-inorganic. Xa i-pH iphezulu, i-cationic polyacrylamide ayifanele isetyenziswe, kwaye xa i-anionic polyacrylamide ayifanele isetyenziswe. I-asidi enamandla yenza kungabi yimfuneko ukusebenzisa i-anionic polyacrylamide. Xa umxholo oqinileyo wodaka uphezulu, ubungakanani be-polyacrylamide esetyenzisiweyo bukhulu.

2. Ukukhethwa kwe-ionicity

Kwidaka elifuna ukucocwa ngamanzi xa kusetyenzwa ngamanzi amdaka, ungakhetha ii-flocculants ezine-ionicity eyahlukileyo ngokusebenzisa uvavanyo oluncinci ukuze ukhethe i-polyacrylamide efanelekileyo, enokufezekisa isiphumo esihle kakhulu se-flocculation kwaye inciphise idosi, okonga iindleko.

3. Ukukhetha ubunzima be-molecular

Ngokubanzi, xa ubunzima beemolekyuli zeemveliso ze-polyacrylamide buphezulu, kokukhona i-viscosity iba nkulu, kodwa xa isetyenziswa, ubunzima beemolekyuli zemveliso buphezulu, kokukhona isiphumo sokusetyenziswa siba ngcono. Xa kusetyenziswa ngokukodwa, ubunzima beemolekyuli ezifanelekileyo ze-polyacrylamide kufuneka bumiselwe ngokweshishini lokusetyenziswa, umgangatho wamanzi kunye nezixhobo zonyango.

Xa uthenga kwaye usebenzisa i-PAM okokuqala, kuyacetyiswa ukuba unike umenzi we-flocculant imeko ethile yelindle, kwaye siya kukucebisa uhlobo lwemveliso olufanelekileyo ngakumbi kuwe. Kwaye uthumele iisampulu ngeposi ukuze zivavanywe. Ukuba unamava amaninzi kunyango lwakho lwelindle, ungasixelela iimfuno zakho ezithile, amasimi okusetyenziswa, kunye neenkqubo, okanye usinike ngokuthe ngqo iisampulu ze-PAM ozisebenzisayo ngoku, kwaye siya kukufanisa ne-polyacrylamide efanelekileyo.