Flocculation - Aluminum sulfate vs Poly aluminum chloride

Flocculation shine tsarin da ake amfani da shi wajen lalata ƙwayoyin da aka dakatar da su waɗanda ke cikin dakatarwar da ke cikin ruwa. Ana samun wannan ta hanyar ƙara coagulant mai caji mai kyau. Charge mai kyau a cikin coagulant yana kawar da cajin mara kyau da ke cikin ruwa (watau yana lalata shi). Da zarar ƙwayoyin sun lalace ko sun lalace, tsarin flocculation yana faruwa. Kwayoyin da aka lalata suna haɗuwa zuwa manyan ƙwayoyin har sai sun yi nauyi sosai don su iya narkewa ta hanyar sedimentation ko kuma su yi girma sosai don kama kumfa da kuma shawagi.

A yau za mu yi nazari sosai kan halayen flocculation na flocculants guda biyu gama gari: poly aluminum chloride da aluminum sulfate.

Sulfate na Aluminum: Aluminum Sulfate yana da sinadarin acid a yanayi. Ka'idar aiki ta aluminum sulfate ita ce kamar haka: aluminum sulfate yana samar da aluminum hydroxide, Al(0H)3. Aluminum hydroxides suna da iyakataccen kewayon pH, wanda a sama ba za su yi hydrolysis yadda ya kamata ba ko kuma , hydroxides na aluminum hydrolyzated sun zauna da sauri a babban pH (watau pH sama da 8.5), don haka dole ne a kula da pH na aiki a hankali don kiyaye shi a cikin kewayon 5.8-8.5. Dole ne alkalinity a cikin ruwa ya isa yayin aikin flocculation don tabbatar da cewa hydroxide mara narkewa ya cika kuma ya fashe. Yana cire launi da kayan colloidal ta hanyar haɗakar shaye-shaye da hydrolysis akan/cikin hydroxides na ƙarfe. Saboda haka, taga pH na aiki na aluminum sulfate shine 5.8-8.5 kawai, don haka yana da matukar muhimmanci a tabbatar da kyakkyawan iko na pH a duk lokacin aikin lokacin amfani da aluminum sulfate.

Polyaluminum chloride(PAC) yana ɗaya daga cikin sinadarai mafi inganci na maganin ruwa da ake amfani da su a yau. Ana amfani da shi sosai a cikin ruwan sha da kuma maganin ruwan sha saboda yawan tasirinsa na coagulation da kuma mafi yawan aikace-aikacen pH da zafin jiki idan aka kwatanta da sauran sinadarai na maganin ruwa. Ana samun PAC a cikin matakai daban-daban tare da yawan alumina tsakanin 28% zuwa 30%. Yawan alumina ba shine kawai abin da ake la'akari da shi ba wajen zaɓar matakin PAC da za a yi amfani da shi.

Ana iya ɗaukar PAC a matsayin coagulant kafin hydrolysis. Ƙungiyoyin aluminum kafin hydrolysis suna da yawan caji mai kyau sosai, wanda ke sa PAC ya fi cationic fiye da alum. Yana mai da shi ya zama mai ƙarfi ga dattin da aka dakatar a cikin ruwa.

PAC yana da fa'idodi masu zuwa akan aluminum sulfate

1. Yana aiki a ƙananan yawan ƙwayoyi. A matsayinka na doka, kashi na PAC shine kusan kashi ɗaya bisa uku na adadin da ake buƙata don alum.

2. Yana barin ƙarancin aluminum da ya rage a cikin ruwan da aka yi wa magani

3. Yana samar da ƙarancin laka

4. Yana aiki a kan kewayon pH mai faɗi

Akwai nau'ikan flocculants da yawa, kuma wannan labarin ya gabatar da biyu kawai daga cikinsu. Lokacin zabar coagulant, ya kamata ka yi la'akari da ingancin ruwan da kake sha da kuma kasafin kuɗinka. Ina fatan kana da kyakkyawar gogewa a fannin maganin ruwa. A matsayinka na mai samar da sinadarai na maganin ruwa tare da shekaru 28 na gwaninta. Ina farin cikin magance dukkan matsalolinka (game da sinadarai na maganin ruwa).