He aha ke kemika i hoʻohana ʻia no ka Flocculation?

FlocculationHe kaʻina hana i hoʻohana ʻia ma nā ʻoihana like ʻole, ʻoi loa i ka mālama ʻana i ka wai a me ka mālama ʻana i ka wai ʻino, e hōʻuluʻulu i nā ʻāpana i hoʻokuʻu ʻia a me nā colloids i loko o nā ʻāpana floc nui. Hoʻomaʻamaʻa kēia i kā lākou wehe ʻana ma o ka sedimentation a i ʻole kānana. ʻO nā mea kemika i hoʻohana ʻia no ka flocculation i kapa ʻia ʻo flocculants. ʻO kekahi o nā flocculants maʻamau a hoʻohana nui ʻia he polyacrylamide.

Polyacrylamidehe polymer i hana ʻia mai nā monomer acrylamide. Aia ia ma nā ʻano like ʻole, me ka anionic, cationic, a me ka non-ionic, kēlā me kēia me nā noi kikoʻī. ʻO ke koho ʻana o ke ʻano polyacrylamide e pili ana i ke ʻano o nā ʻāpana i loko o ka wai a me ka hopena i makemake ʻia o ke kaʻina flocculation.

Hoʻopiʻi maikaʻi ʻia ʻo Anionic polyacrylamide a hoʻohana pinepine ʻia i ka mālama ʻana i ka wai ʻino i loaʻa nā ʻāpana maikaʻi e like me ka pālolo a me nā mea organik. ʻO ka cationic polyacrylamide, ma ka ʻaoʻao ʻē aʻe, ua hoʻopiʻi maikaʻi ʻia a maikaʻi no ka mālama ʻana i ka wai me nā ʻāpana i hoʻopiʻi maikaʻi ʻia e like me nā paʻa paʻa a me ka sludge. ʻAʻohe uku o ka polyacrylamide non-ionic a kūpono no ka flocculation o nā ʻāpana ākea.

Hoʻohana ka polyacrylamide flocculants ma ka hoʻopili ʻana ma luna o ka ʻili o nā ʻāpana, hana i nā alahaka ma waena o lākou, a me ka hana ʻana i nā aggregates nui aʻe. ʻOi aku ka maʻalahi o ka hoʻopaʻa ʻana a i ʻole kānana ʻana i nā flocs mai ka wai. ʻOi aku ka Polyacrylamide no kona kaumaha molecular kiʻekiʻe, e hoʻonui ai i kona hiki ke hoʻopili a me ka flocculating.

Ma waho aʻe o ka polyacrylamide, hoʻohana ʻia nā kemika ʻē aʻe no ka flocculation, e pili ana i nā pono kikoʻī o ke kaʻina hana. ʻO nā flocculants anorganic, e like meAluminum Sulfate(alum) a me ka ferric chloride, hoʻohana mau ʻia i ka mālama wai. Hoʻokumu kēia mau mea kemika i nā flocs metala hydroxide ke hoʻohui ʻia i ka wai, e kōkua ana i ka wehe ʻana i nā mea i hoʻokuʻu ʻia.

Ua hoʻohana nui ʻia ʻo Alum no ka hoʻomaʻamaʻa wai no nā makahiki he nui. Ke hoʻohui ʻia i ka wai, hele ka alum i ka hydrolysis, e hana ana i nā alumini hydroxide flocs e pahele i nā haumia. Hiki i nā ʻōpala ke noho, a hiki ke hoʻokaʻawale ʻia ka wai i hoʻomaʻemaʻe ʻia mai ka sediment.

ʻO ka Flocculation kahi hana koʻikoʻi i nā kaʻina hana mālama wai, e hōʻoiaʻiʻo ana i ka wehe ʻana o nā haumia a me ka hana ʻana i ka wai maʻemaʻe. ʻO ke koho ʻana o ka flocculant e pili ana i nā mea e like me nā ʻano o ka wai e mālama ʻia, ke ʻano o nā ʻāpana i loaʻa, a me ka hopena lapaʻau i makemake ʻia. He mea koʻikoʻi ka polyacrylamide a me nā flocculants i ka hoʻonui ʻana i ka pono o ka wai a me nā ʻōnaehana mālama wai, e hāʻawi ana i ka hāʻawi ʻana i ka wai palekana a me ka wai inu no nā kumu like ʻole.