karo-karolelano ea litekanyetso tsa indasteri ea polyaluminium chloride

Se latelang ke tlhahlobo ea setsebi ea tekanyo ea litekanyetso tsa sehlopha sa indasteri Polyaluminium Chloride (PAC) kalafong ea likhoerekhoere tsa indasteri, litlhaloso tse felletseng tsa tekheniki le lintlha tse sebetsang tsa ts'ebeliso:

I. Litšobotsi le motheo oa ho eketsa polyaluminium chloride

Sehlopha sa lihlahisoa le khetho

PAC e tiileng: Likahare tsa alumina (Al₂O₃) e lokela ho ba ≥28% (tekanyetso ea naha ea GB/T 22627-2022), 'me karolelano ea ho qhibiliha hangata ke 1: 9 ~ 1: 15 (ka tekanyo ea boima ba 'mele) (ke hore, karolo e le 1 ea PAC hammoho le likarolo tse 9 ~ 15 tsa metsi), e lokiselitsoeng ka tharollo ea 5% ~ 10%. Mahloriso a ka tlase ho 1% a bonolo ho hydrolyze le ho hloleha, ha mahloriso a ka holimo ho 10% a le bonolo ho baka litšila.

Liquid PAC: litaba tsa alumina li feta 10%, tse ka kenyelletsoang ka ho toba, empa litšenyehelo tsa lipalangoang le tsa polokelo li phahame, kahoo li loketse maemo a haufi a ho hloekisa likhoerekhoere.

Lintho tse ka sehloohong tse susumetsang

Boleng ba Metsi litšobotsi (turbidity, pH, mofuta oa litšila) li khetholla palo ea sebele, 'me karolelano e ntle ka ho fetisisa e lokela ho khethoa ka tlhahlobo e nyenyane.

Thempereichara le boleng ba pH: mochesong o tlase kapa boleng bo tlase ba pH ea metsi, khatello e phahameng ea PAC e ka lebisa ho fokotseng phello ka lebaka la hydrolysis e potlakileng.

2. Mokhoa oa ho khetholla tekanyo ea litekanyetso

(1) Mehato ea teko ea sefofane (lihokelo tsa bohlokoa)

Tlhophiso ea tharollo ea litšupiso:

Re ile ra lekanya 3g ea PAC e tiileng, ra eketsa 50ml ea metsi ho e qhaqha, 'me ra etsa 100ml ho lokisa tharollo ea 3% (karolelano ea boima).

Teko ea gradient:

Ho ile ha nkoa lihlopha tse tšeletseng tsa palo e lekanang ea lisampole tsa likhoerekhoere 'me tharollo ea PAC ea eketsoa ka litekanyetso tse fapaneng (mohlala, 10 ~ 50mg/L). Ka mor'a ho sisinyeha, lebelo la ho thehoa ha alum, phello ea sedimentation le masala a turbidity a ile a hlokomeloa.

Ho ntlafatsa le ho lokisa:

Haeba tanka ea sedimentation e na le lipalesa tse nyane tsa alum le li-turbidity tse ngata tse setseng, litekanyetso li lokela ho eketsoa; haeba lipalesa tsa alum li le khōlō 'me li phahamisitsoe, tekanyo e lokela ho fokotsoa.

(2) Litekanyetso tsa tlhahiso le kabo

Ho qhibiliha: PAC e tiileng e lokela ho qhibiliha ka metsi a pompo kapa metsi a seliba, 'me e tsosoe bonyane metsotso e 5 ho fihlela ho se na likaroloana tse teng.

Khokahano ea lintho tse ekelitsoeng:

Kakaretso ea likhoerekhoere: 5% ~ 8% tharollo (ke hore, 50 ~ 80g PAC / litha e le nngwe tsa metsi);

Metsi a litšila a phahameng (mohlala, metallurgy, ho etsa pampiri): a ka eketsoa ho isa ho 10% ea tharollo.

3. Kenya tekanyo ea litekanyetso ka indasteri

Ho latela mofuta oa boleng ba metsi le boima ba tšilafalo, tšebeliso maemong a tloaelehileng a indasteri e tjena (yuniti: lik'hilograma PAC/ lithane tse 1000 tsa likhoerekhoere):

Tlhokomeliso: Lintlha tse ka holimo ke litekanyetso tsa phihlelo ea indasteri, 'me tlhahlobo ea sebele ea boleng ba metsi le tlhahlobo e nyenyane e lokela ho sebelisoa.

IV. Lintlha tsa bohlokoa le mathata a tloaelehileng

Qoba ho noa haholo:

Keketseho e tla lebisa ho ho eketseha ha seretse, ho eketseha ha litšenyehelo tsa kalafo, le phello e fokolang ea ho tlosa linthong tse qhibilihisitsoeng (joalo ka COD).

Theknoloji e kopanetsoeng ea ts'ebetso:

Ho khothalletsoa ho sebelisa mokhoa o kopantsoeng oa PAC le PAM bakeng sa metsi a litšila a refractory (mohlala, ho hatisa le ho daea, ho pheha): pele u eketsa PAC coagulation, ebe u sebelisa 0.1% ~ 0.3% PAM tharollo ho thusa ho kopanya.

Taolo e nepahetseng ea mahloriso:

Likahare tsa alumina tsa PAC tsa mokelikeli li lokela ho lekoa khafetsa ho thibela ho senyeha ha likarolo tse sebetsang nakong ea polokelo.

V. MATS'ELISO

Karo-karolelano ea litekanyetso tsa PAC ea indasteri e lokela ho latela molao-motheo oa "ntlafatso e nyane, taolo e hlophisitsoeng le tokiso e matla":

Karolelano ea motheo: PAC e tiileng e qhibilihisoa ka 1: 9 ~ 1: 15, 'me mahloriso a litekanyetso ke 5% ~ 10%;

Indasteri ho ikamahanya le maemo: litekanyetso li lokela ho khethoa ho ea ka mojaro o silafatsang. Bakeng sa metsi a litšila a mangata (a kang ho etsa pampiri le ho hatisa), a lokela ho eketsoa ho metsi a 100 ~ 300kg / sekete;

Taolo ea likotsi: Ho thibetsoe ka thata ho sebelisa metsi a litšila ho qhala PAC ho qoba tšilafalo ea bobeli ea litšepe tse boima.