Kwenzekani uma i-aluminium sulfate isabela emanzini?

I-aluminium sulfate, emelelwa ngamakhemikhali njenge-Al2(SO4)3, iyi-crystalline solid emhlophe evame ukusetshenziswa ezinqubweni zokwelashwa kwamanzi. Lapho i-aluminium sulfate isabela namanzi, idlula ku-hydrolysis, ukusabela kwamakhemikhali lapho ama-molecule amanzi ehlukanisa khona i-compound ibe yi-ion yayo. Lokhu kusabela kudlala indima ebalulekile ekusetshenzisweni okuhlukahlukene, ikakhulukazi ekuhlanzweni kwamanzi.

Umkhiqizo oyinhloko walokhu kusabela yi-aluminium hydroxyl complex. Le complex ibalulekile ekuphathweni kwamanzi, njengoba isiza ekususweni kokungcola emanzini. I-aluminium hydroxyl complex ine-charge density ephezulu, futhi uma yakheka, ivame ukubamba futhi ijiye izinhlayiya ezilengayo, njengobumba, udaka, nezinto eziphilayo. Ngenxa yalokho, lokhu kungcola okuncane kuba izinhlayiya ezinkulu nezisindayo, okwenza kube lula ngazo ukuhlala emanzini.

I-asidi ye-sulfuric ekhiqizwa ekuphenduleni ihlala isesimweni futhi inegalelo ku-asidi iyonke yesistimu. I-asidi ingalungiswa njengoba kudingeka, kuye ngezidingo ezithile zenqubo yokwelapha amanzi. Ukulawula i-pH kubalulekile ekwenzeni ngcono ukusebenza kahle kwezinqubo zokujiya kanye ne-flocculation. Kuphinde kunciphise i-asidi yamanzi. Uma i-asidi yamanzi echibini ngokwayo iphansi, khona-ke i-NaHCO3 idinga ukungezwa ukuze kwandiswe i-asidi yamanzi.

Ukusabela phakathi kwe-aluminium sulfate namanzi kuvame ukusetshenziswa ezinyathelweni zokujiya kanye nokujiya kwezitshalo zokwelapha amanzi. Ukujiya kuhilela ukungazinzi kwezinhlayiya ezilengayo, kuyilapho ukujiya kukhuthaza ukuhlanganiswa kwalezi zinhlayiya zibe ama-floc amakhulu, alula ukuzinza. Zombili lezi zinqubo zibalulekile ekususweni kokungcola kanye nokucwengisiswa kwamanzi.

Kubalulekile ukuqaphela ukuthi ukusetshenziswa kwe-aluminium sulfate ekuhlanzweni kwamanzi kuphakamise ukukhathazeka ngemvelo ngenxa yokuqongelela okungenzeka kwe-aluminium ezindaweni zemvelo zasemanzini. Ukuze kuncishiswe lokhu kukhathazeka, ukukala nokuqapha okunembile kubalulekile ukuqinisekisa ukuthi ukugcwala kwe-aluminium emanzini ahlanziwe kuhlangabezana nezindinganiso ezisemthethweni.

Ekuphetheni, lapho i-aluminium sulfate isabela namanzi, idlula ku-hydrolysis, ikhiqize i-aluminium hydroxide kanye ne-sulfuric acid. Lokhu kusabela kwamakhemikhali kubalulekile ezinqubweni zokwelashwa kwamanzi, lapho i-aluminium hydroxide isebenza njenge-coagulant ukususa ukungcola okulenga emanzini. Ukulawula nokuqapha okufanele kuyadingeka ukuqinisekisa ukuhlanzwa kwamanzi okuphumelelayo ngenkathi kunciphisa umthelela emvelweni.