ʻO PolyDADMAC, nona ka inoa piha ʻo polydimethyldiallylammonium chloride, he cationic water-soluble polymer i hoʻohana nui ʻia ma ke kahua o ka mālama wai. Ma muli o kona ʻano cationic charge density a me ka wai kiʻekiʻe o ka wai, ʻo PolyDADMAC kahi coagulant maikaʻi e hiki ke hoʻopau pono i ka turbidity, kala a me nā mea haumia ʻē aʻe i ka wai. Eia nō naʻe, ma nā hana hana, hoʻohana pinepine ʻia e like me kahiʻāhuehuei hui pū me nā coagulants ʻē aʻe no ka mālama ʻana i ka lepo ʻoihana.
Nā hiʻohiʻona a me ke ʻano o ka hana o PolyDADMAC
Hoʻopili wikiwiki ʻo PolyDADMAC a hōʻuluʻulu i nā ʻāpana colloidal i hoʻopiʻi maikaʻi ʻia a hoʻokuʻu i nā mea paʻa i ka wai ma muli o kona kiʻekiʻe cationic charge density. Hoʻokumu nui ʻia kāna ʻano hana i ka electrostatic attraction, ka mea e hoʻohui ai i kēia mau ʻāpana liʻiliʻi i loko o nā ʻāpana nui, i hiki ke hoʻoneʻe maikaʻi ʻia i ka wā o ka ua a i ʻole nā kaʻina kānana.
ʻO ka mīkini flocculation o PolyDADMAC
ʻO ka Flocculation kekahi o nā ʻanuʻu o ke kaʻina coagulation. E pili ana i ke kaʻina hana o ka
ʻO nā "pua alum liʻiliʻi" i hoʻokumu ʻia i ka wā o ke kaʻina coagulation e hana i nā flocs me nā ʻāpana nui ma o ka adsorption, ka hoʻokaʻawale uila, ka hoʻopili ʻana a me ka hopu ʻana i ka ʻupena.
I ka ʻoihana mālama wai, hoʻokaʻawale ʻia ka adsorption a me ka neutralization uila e like me ka coagulation, aʻo ka hoʻopili ʻana a me ka hopu ʻana i ka ʻupena e helu ʻia he flocculation. Kapa ʻia nā kinikona pili i nā coagulants a me nā flocculants.
Manaʻo maʻamau he ʻekolu mau ʻano hana o ka PolyDADMAC: adsorption, electro neutralization a me bridging. ʻO nā mea mua ʻelua ka mea nui. ʻO ia ke kumu i helu ʻia ai ʻo PolyDADMAC ma ke ʻano he coagulants. Eia naʻe, manaʻo ka hapanui o ka poʻe i ka coagulation a me ka flocculation e like me ke kaʻina hana like, no laila ua kapa ʻia ʻo PolyDADMAC he flocculant.
I nā kaʻina hana mālama wai, hoʻohana nui ʻia ʻo PolyDADMAC ma ke ʻano he flocculant e hoʻomaikaʻi i ka maikaʻi o ka wai. ʻO ka mea kikoʻī, hiki i ka hui paʻakai ammonium cationic quaternary o PolyDADMAC ke hoʻoulu i ka attraction electrostatic me ka anionic suspended particles a i ʻole colloidal particles i loko o ka wai, e hopena i ka neutralization, e hana ana i nā flocs o nā ʻāpana nui a hoʻonoho iā lākou. Hoʻopili ʻia kēia mau flocs i ka wā o ka sedimentation a i ʻole ka kānana kānana e hoʻomaʻemaʻe i ka maikaʻi o ka wai.
Nā pōmaikaʻi o PolyDADMAC
Ke hoʻohālikelike ʻia me nā flocculants kuʻuna (alum, PAC, a me nā mea ʻē aʻe), ua loaʻa i ka PolyDADMAC nā pōmaikaʻi nui:
Pono: Hiki i ka PolyDADMAC ke wehe koke i nā haumia i ka wai a hoʻomaikaʻi i ka maikaʻi o ka wai.
Maʻalahi e hana: He maʻalahi kona hoʻohana, hoʻohui wale ia ma lalo o nā kūlana kūpono.
Hoʻomau: He kūpaʻa maikaʻi ka PolyDADMAC a ʻaʻole e wāwahi maʻalahi e like me ka polyacrylamide.
ʻO ka hopena flocculation ikaika: Hāʻawi ka hui paʻakai ammonium cationic quaternary i ka PDMDAAC ikaika flocculation, a laila e mālama pono i nā ʻano wai like ʻole;
ʻO ke kūpaʻa paʻakai maikaʻi, ka ʻakika a me ke kūpaʻa alkali: Ua kūpono ʻo PDMDAAC no nā kūlana wai paʻakikī, a paʻa mau ka hana flocculation ma lalo o ke kiʻekiʻe salinity, acidic a i ʻole nā kūlana alkaline;
ʻO ke kumu kūʻai haʻahaʻa: ʻO PolyDADMAC he kiʻekiʻe flocculation maikaʻi a me kahi haʻahaʻa haʻahaʻa, hiki ke hōʻemi i nā kumukūʻai mālama wai.
ʻO ka lepo haʻahaʻa: Hoʻopuka ka PolyDADMAC i ka liʻiliʻi ma mua o nā coagulants inorganic a me nā flocculants a mālama i nā kumukūʻai ma hope o ka hana.
PolyDADMAC dosage a me ka mālama ʻana
Ke hoʻohana nei i ka PolyDADMAC, pono e hahai pono nā kaʻina hana e hōʻoia i nā hopena lapaʻau maikaʻi loa a pale i nā hopena ʻaoʻao. ʻO ka maʻamau, ma hope o ka hoʻohui ʻana i nā flocculants e like me ka polyaluminium chloride, hoʻohui ʻia ʻo PolyDADMAC e hoʻokō i ka hopena coagulation maikaʻi loa. Eia kekahi, pono e hoʻoponopono pono ʻia ka dosage e like me ka maikaʻi o ka wai a me nā koi mālama. Hiki ke hoʻoholo ʻia ka dosage kūpono e nā hoʻāʻo jar.
ʻO nā mea a pau,PolyDADMAChe kuleana koʻikoʻi ma ke kahua o ka mālama wai. ʻO ka ʻike hohonu o kāna mau waiwai a me nā noi e kōkua i ka hoʻohana pono ʻana i kēia huahana e hoʻomaikaʻi i ka maikaʻi o ka wai a pale i ke kaiapuni.
Ka manawa hoʻouna: Nov-14-2024