Polyaluminium chloridebụ ihe na-arụ ọrụ nke ọma nke na-eme ka mmiri na-asọpụta nke ọma, nke a na-ejikarị eme ihe n'ọgwụgwọ mmiri mkpofu obodo na mmiri mkpofu ụlọ ọrụ mmepụta ihe. O nwere njirimara nke arụmọrụ dị elu na nkwụsi ike. Mgbe anyị na-ekwu maka PAC, otu n'ime ihe ngosi ndị a na-akpọkarị bụ basicity. Gịnị bụ basicity? Kedu mmetụta basicity nwere na àgwà nke polyaluminium chloride? Ịghọta echiche a ga-enwe nnukwu mmetụta na nhọrọ nke polyaluminium chloride.
Kedu ihe bụ isi ihe dị na polyaluminium chloride?
Na PAC, basicity na-ezo aka na oke molar nke otu hydroxyl na ion aluminom. A na-egosipụtakarị ya dị ka basicity (B):
B = [OH]-] / [Al3+]
Isi ihe bụ otu n'ime ihe ngosi kachasị mkpa nke polyaluminium chloride. Ọ na-emetụta kpọmkwem mmetụta nke PAC.
Ụlọ ọrụ anyị na-enye ụdị PAC dị iche iche, nke nwere ntọala dị site na 40% ruo 90%.
Usoro nke mmetụta nke isi ihe na polyaluminium chloride
Isi ihe na-emetụta arụmọrụ nke PAC site na imetụta ọdịdị polymer na nkesa chajị nke PAC. Alkalinity na-ekpebi oke polymerization nke aluminom hydroxyl complexes na PAC. Isi ihe dị elu na-enyere aka ịmepụta PAC nwere ogo polymerization dị elu ma na-eme ka mmetụta flocculation ya ka mma. Isi ihe dị mkpa ga-emetụta nkesa chajị dị mma nke PAC na ikike adsorption ya maka ihe ndị a na-agbaze na-adịghị mma.
Mmetụta nke ntọala na PAC:
Isi ihe kwesịrị ekwesị nwere ike ime ka mmetụta flocculation nke polyaluminium chloride dịkwuo mma. Isi ihe dị oke ala ga-eme ka hydrolysis nke PAC ghara ịdị mma ma belata mmetụta flocculation.
Isi ihe ga-emetụtakwa nha, njupụta na ọnụego sedimentation nke polyaluminium chloride condensed flocs. Isi ihe kwesịrị ekwesị nwere ike ijikwa akụkụ a nke ọma.
Ya mere, ọ dị mkpa karịsịa ịhọrọ ụdị PAC kwesịrị ekwesị dịka mkpa gị si dị.
Anyị nwere ike ịnye ụdị PAC ndị a:
| ihe | PAC-I | PAC-D | PAC-H | PAC-M | PAC-G |
| Ọdịdị | Ntụ ntụ odo | Ntụ ntụ odo | Ntụ ntụ ọcha | Ntụ ntụ mmiri ara ehi | Ntụ ntụ ọcha nke mmiri ara ehi |
| Ọdịnaya (%, Al2O3) | 29±1 | 30±1 | 30±1 | 30±1 | 30±1 |
| Isi ihe (%) | 40 – 90 | 40 – 90 | 40 – 90 | 40 – 90 | 40 – 90 |
| Ihe na-anaghị agbaze mmiri (%) | 1.0 kacha elu | 0.6 kacha elu | 0.6 kacha elu | 0.6 kacha elu | 0.6 kacha elu |
| pH | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 |
Anyị na-achịkwa mma dị elu na ụlọ ọrụ mmekọ anyị na polyaluminium chloride ma nwee ike inye ndụmọdụ nlereanya ziri ezi dịka mkpa ndị ahịa dị iche iche si dị, na-enye ndị ahịa PAC dị elu nke na-emezu mkpa ha. Ndị otu ahịa anyị nwere ahụmịhe bara ụba na nhọrọ ngwaahịa ma nwee ike inye ndị ahịa ndụmọdụ ọkachamara na ihe atụ ruru eru maka ndị ahịa iji mee nnwale beaker.
Ọ bụrụ na ị na-achọ onye a pụrụ ịtụkwasị obiOnye Na-ebunye PACmaka ọgwụgwọ mmiri ọṅụṅụ, ọgwụgwọ mmiri mkpofu ụlọ ọrụ ma ọ bụ ngwa ndị ọzọ, anyị nwere ike inye PAC ahaziri ahazi iji gboo mkpa gị. Kpọtụrụ anyị ugbu a ka ịmatakwu gbasara ngwaahịa PAC anyị dị elu ma nweta ọnụahịa asọmpi!
Oge ozi: Maachị-27-2025
