Pehea e koho ai i ka Polyaluminum Chloride i ka mālama ʻana i ka wai

He aha ka polyaluminum chloride?

ʻO ka Polyaluminum Chloride (Poly aluminium chloride) he pōkole ia o PAC. He ʻano kemika mālama wai ia no ka wai inu, ka wai ʻoihana, ka wai ʻino, ka hoʻomaʻemaʻe ʻana i ka wai honua no ka wehe ʻana i ke kala, ka wehe ʻana i ke COD, a pēlā aku ma o ka hopena. Hiki ke manaʻo ʻia he ʻano mea flocculate, mea hoʻohemo kala a i ʻole coagulant.

He polymers inorganic wai-hoʻoheheʻe ʻia ka PAC ma waena o ALCL3 a me AL(OH)3, ʻo ke ʻano kemika ʻo [AL2(OH)NCL6-NLm], ʻo 'm' ke ʻano o ka polymerization, ʻo 'n' ke kū nei no ka pae kūlike ʻole o nā huahana PAC. Loaʻa iā ia nā pono o ke kumukūʻai haʻahaʻa. ka hoʻohana liʻiliʻi, a me ka hopena hoʻomaʻemaʻe maikaʻi loa.

Ehia mau ʻano PAC?

ʻElua mau ʻano hana: ʻo kekahi ka hoʻomaloʻo ʻana i ka pahu, ʻo kekahi ka hoʻomaloʻo ʻana i ka pīpī. Ma muli o nā laina hana like ʻole, aia kekahi mau ʻokoʻa iki mai ke ʻano a me nā mea i loko.

ʻO ka PAC hoʻomaloʻo pahu he mau granules melemele a ʻeleʻele paha, me ka nui o Al203 mai 27% a 30%. ʻAʻole ʻoi aku ka nui o ka mea hiki ʻole ke hoʻoheheʻe ʻia i loko o ka wai ma mua o 1%.

ʻOiai ʻo ka Spray Drying PAC he melemele. he pauka melemele haʻahaʻa a keʻokeʻo paha, me ka nui o AI203 mai 28% a 32%. ʻAʻole ʻoi aku ka nui o ka mea hiki ʻole ke hoʻoheheʻe ʻia i ka wai ma mua o 0.5%.

Pehea e koho ai i ka PAC kūpono no nā ʻano hana wai like ʻole?

ʻAʻohe wehewehe no ka hoʻohana ʻana o PAC i ka mālama ʻana i ka wai. He kūlana maʻamau wale nō ia o nā koi kikoʻī PAC no ka mālama ʻana i ka wai. ʻO ka helu maʻamau no ka mālama ʻana i ka wai inu ʻo GB 15892-2009. ʻO ka maʻamau, hoʻohana ʻia ka 27-28% PAC i ka mālama ʻana i ka wai ʻole e inu ʻia, a hoʻohana ʻia ka 29-32% PAC i ka mālama ʻana i ka wai inu.