Kusakaniza kwa Aluminium Sulphate ndi Poly Aluminium Chloride

Kusinthasintha kwa madzi ndi njira yomwe tinthu tomwe timayimitsidwa tokhala ndi mphamvu yoipa yomwe ili mumadzi okhazikika timasokonekera. Izi zimachitika powonjezera coagulant yokhazikika. Mphamvu yoipa yomwe ili mu coagulant imasokoneza mphamvu yoipa yomwe ili m'madzi (monga kuisokoneza). Tinthu timeneti tikasungunuka kapena kusungunuka, njira yosinthasintha imachitika. Tinthu tomwe timasungunuka timaphatikizana kukhala tinthu tating'onoting'ono tomwe timalemera mpaka titakhala tolemera mokwanira kuti tikhazikike ndi madzi kapena tokwanira kuti tigwire thovu la mpweya ndikuyandama.

Lero tiwona bwino momwe flocculant ziwiri zodziwika bwino zimagwirira ntchito: polyaluminium chloride ndi aluminium sulfate.

Aluminiyamu Sulfate: Aluminium Sulfate ndi acidic mwachilengedwe. Mfundo yogwirira ntchito ya aluminium sulfate ndi iyi: aluminium sulfate imapanga aluminium hydroxide, Al(0H)3. Ma aluminium hydroxides ali ndi pH yochepa, pamwamba pake sadzasungunuka bwino kapena, hydrolyzated aluminium hydroxides kukhazikika mwachangu pa pH yapamwamba (monga pH pamwamba pa 8.5), kotero pH yogwira ntchito iyenera kuyendetsedwa mosamala kuti ikhale pamlingo wa 5.8-8.5. Alkalinity m'madzi iyenera kukhala yokwanira panthawi ya flocculation kuti iwonetsetse kuti hydroxide yosasungunuka yapangidwa mokwanira komanso yokhazikika. Imachotsa zinthu zamtundu ndi colloidal kudzera mu kuphatikiza kwa adsorption ndi hydrolysis pa/mu hydroxides zachitsulo. Chifukwa chake, zenera la pH yogwira ntchito la aluminium sulfate ndi 5.8-8.5 yokha, kotero ndikofunikira kwambiri kuonetsetsa kuti pH ikulamulira bwino panthawi yonseyi mukamagwiritsa ntchito aluminium sulfate.

Polyaluminum chloride(PAC) ndi imodzi mwa mankhwala othandiza kwambiri pochiza madzi omwe amagwiritsidwa ntchito masiku ano. Imagwiritsidwa ntchito kwambiri pochiza madzi akumwa ndi madzi otayidwa chifukwa cha mphamvu yake yolimba komanso kuchuluka kwa pH ndi kutentha komwe kumagwiritsidwa ntchito kwambiri poyerekeza ndi mankhwala ena ochiza madzi. PAC imapezeka m'magulu osiyanasiyana okhala ndi kuchuluka kwa alumina kuyambira 28% mpaka 30%. Kuchuluka kwa alumina sikokhako komwe kumaganiziridwa posankha mtundu wa PAC woti mugwiritse ntchito.

PAC ikhoza kuonedwa ngati chosakaniza cha pre-hydrolysis. Magulu a aluminiyamu a pre-hydrolysis ali ndi mphamvu yayikulu kwambiri ya charge, zomwe zimapangitsa PAC kukhala yothandiza kwambiri kuposa alum. Izi zimapangitsa kuti ikhale yoletsa kukhazikika kwa zinyalala zomwe zimayikidwa m'madzi zomwe zimakhala ndi charge yoipa.

PAC ili ndi ubwino wotsatirawu kuposa aluminiyamu sulfate

1. Imagwira ntchito pamlingo wochepa kwambiri. Monga lamulo, mlingo wa PAC ndi pafupifupi gawo limodzi mwa magawo atatu a mlingo wofunikira wa alum.

2. Imasiya aluminiyamu yochepa yotsala m'madzi okonzedwa

3. Zimapangitsa kuti matope achepe

4. Imagwira ntchito pa pH yochuluka

Pali mitundu yambiri ya mankhwala ophera tizilombo toyambitsa matenda, ndipo nkhaniyi ikungotchula ziwiri mwa izo. Mukasankha mankhwala ophera tizilombo toyambitsa matenda, muyenera kuganizira za ubwino wa madzi omwe mukutsuka komanso bajeti yanu. Ndikukhulupirira kuti muli ndi chidziwitso chabwino chotsuka madzi. Monga wogulitsa mankhwala ophera tizilombo toyambitsa matenda komanso wazaka 28 zakuchitikira. Ndine wokondwa kuthetsa mavuto anu onse (okhudza mankhwala ophera tizilombo toyambitsa matenda).