Sideen u doortaa nooca Polyacrylamide?

Polyacrylamide(PAM) sida caadiga ah waxaa loo kala saari karaa anionic, cationic, iyo nonionic iyadoo loo eegayo nooca ion. Waxaa inta badan loo isticmaalaa flocculation ee daaweynta biyaha. Markaad dooranayso, noocyada kala duwan ee biyaha wasakhda ah waxay dooran karaan noocyo kala duwan. Waxaad u baahan tahay inaad doorato PAM sax ah iyadoo loo eegayo sifooyinka bulaacadahaaga. Isla mar ahaantaana, waa inaad sidoo kale caddeysaa habka polyacrylamide lagu dari doono iyo ujeedada aad rabto inaad ku gaarto adigoo isticmaalaya.

Tilmaamayaasha farsamada ee polyacrylamide guud ahaan waxaa ka mid ah miisaanka molecular, heerka hydrolysis, ionicity, viscosity, monomer content hadhaaga, iwm. Tilmaamayaashan waa in lagu caddeeyaa sida waafaqsan biyaha wasakhda ah ee aad daaweyneyso

1. Miisaanka molecular / viscosity

Polyacrylamide waxay leedahay noocyo kala duwan oo miisaanno unugyo ah, min hoose ilaa mid aad u sarreeya. Miisaanka molecular wuxuu saameeyaa waxqabadka polymers ee codsiyada kala duwan. Miisaanka molecular-ka sareeya ee polyacrylamide ayaa caadi ahaan aad waxtar ugu leh habka qulqulka sababtoo ah silsiladahooda polymer-ka ayaa dheer waxayna isku xiri karaan qaybo badan oo wadajir ah.

Viscosity ee xalka PAM waa mid aad u sarreeya. Marka ionization-ku uu xasiloon yahay, miisaanka molecular ee weyn ee polyacrylamide, ayaa sii weynaan doona viscosity ee xalkiisa. Tani waa sababta oo ah silsiladda macromolecular ee polyacrylamide waa mid dheer oo dhuuban, caabbinta dhaqdhaqaaqa ee xalka waa mid aad u weyn.

2. Degree of hydrolysis iyo ionity

Ionicity ee PAM waxay saameyn weyn ku leedahay saameynteeda isticmaalkeeda, laakiin qiimaha ku habboon waxay kuxirantahay nooca iyo nooca walxaha la daweeyay, waxaana jira qiyam kala duwan oo wanaagsan oo xaalado kala duwan ah. Marka xoogga ionic ee alaabta la daweeyay ay sareeyso (wax badan oo aan dabiici ahayn), ionicity ee PAM ee la isticmaalo waa in ay ahaataa mid sare, haddii kale waa inay ahaataa mid hoose. Guud ahaan, heerka anion waxaa lagu magacaabaa heerka hydrolysis, iyo heerka ion waxaa guud ahaan loo yaqaan heerka cation.

Sida loo doorto polyacrylamidewaxay ku xidhan tahay fiirsashada colloid iyo adkaha la hakiyey ee biyaha. Ka dib markii la fahmo tilmaamayaasha kor ku xusan, sida loo doorto PAM ku habboon?

1. Faham isha bulaacadaha

Marka hore, waa in aan fahamnaa isha, dabeecadda, halabuurka, nuxurka adag, iwm. ee dhoobada.

Guud ahaan, cationic polyacrylamide waxaa loo isticmaalaa in lagu daweeyo dhoobada organic, iyo polyacrylamide anionic waxaa loo isticmaalaa in lagu daaweeyo dhoobada aan organic ahayn. Marka pH ay sareeyso, cationic polyacrylamide waa in aan la isticmaalin, iyo marka , polyacrylamide anionic waa in aan la isticmaalin. Aysiidh xoog leh ayaa ka dhigaysa mid aan ku habboonayn isticmaalka polyacrylamide anionic. Marka maadada adag ee dhoobada ay sarreyso, cadadka polyacrylamide ee la isticmaalo waa weyn yahay.

2. Xulashada ionity

Wixii dhoobo ah oo u baahan in lagu fuuq-baxo daaweynta bulaacada, waxaad dooran kartaa flocculants leh ionity kala duwan iyada oo loo marayo tijaabooyin yaryar si aad u doorato polyacrylamide ugu habboon, taas oo gaari karta saameynta ugu fiican ee qulqulka waxayna yareyn kartaa qiyaasta, badbaadinta kharashka.

3. Doorashada miisaanka molecular

Guud ahaan, marka uu sareeyo miisaanka molecular ee alaabta polyacrylamide, waa ka weyn yahay viscosity, laakiin isticmaalka, miisaanka molecular sare ee alaabta, ayaa si fiican u isticmaalka. Isticmaalka gaarka ah, miisaanka molecular ee ku habboon ee polyacrylamide waa in lagu go'aamiyaa iyadoo loo eegayo warshadaha codsiga dhabta ah, tayada biyaha iyo qalabka daaweynta.

Markaad iibsatid oo aad isticmaasho PAM markii ugu horeysay, waxaa lagugula talinayaa inaad bixiso xaalada gaarka ah ee bulaacada soo saaraha flocculant, waxaanan kugula talineynaa nooca badeecada adiga kugu habboon. Una soo dir muunado tijaabo ah. Haddii aad khibrad badan u leedahay daawaynta bullaacadahaaga, waxaad noo sheegi kartaa shuruudahaaga gaarka ah, goobaha codsiga, iyo hababka, ama si toos ah na sii shaybaarka PAM ee aad hadda isticmaalayso, waxaanan ku waafajin doonaa polyacrylamide saxda ah.