In ʻoihana hoʻomaʻemaʻe wai, ʻo ka wehe ʻana i nā mea paʻa i hoʻopaʻa ʻia he loulou kī. ʻAʻole wale kēia e kōkua i ka hoʻomaikaʻi ʻana i ka maikaʻi o ka wai, ʻo ia hoʻi e hōʻemi i ka ʻaʻahu a me ka waimaka i nā mea hana a me ka pipili. I kēia manawa, ʻo ke ʻano o ka wehe ʻana i nā mea paʻa i hoʻopaneʻe ʻia e pili ana i ka sedimentation, filtration, flotation a me flocculation. I waena o lākou, hoʻohana nui ʻia ke ʻano flocculation ma muli o kona kiʻekiʻe kiʻekiʻe a me ka hoʻokele waiwai. Ma kēia ala, he mea nui ka polymer i kapa ʻia ʻo PolyDADMAC.
ʻO PolyDADMAC, nona ka inoa piha ʻo Poly diallyl dimethyl ammonium chloride, he polymer molecular kiʻekiʻe. Hoʻokumu nui ʻia e ka polymerizing diallyldimethylammonium chloride monomer ma o ka polymerization ulu ulu. Hana ʻia kēia hopena polymerization ma lalo o ka catalysis o ka waikawa a i ʻole ka paʻakai, a hiki ke loaʻa i kahi polymer structure linear. He wai melemele a keʻokeʻo paha i ka pauka melemele a i ʻole granules. Loaʻa iā ia ka solubility maikaʻi a hiki ke hoʻopuehu ʻia i loko o nā ʻano wai.
PolyDADMACHe kiʻekiʻe koʻikoʻi koʻikoʻi a hana maʻamau e like me ka polymer cationic. 'O ia ho'i, hiki iā ia ke adsorb i nā mea pa'a i ho'opa'a 'ia a me nā mea colloidal i loko o ka wai e hana i nā flocs nui, a laila e ho'okō 'ia ai ka lawe 'ana i nā mea pa'a. Hoʻohana pinepine ʻia ʻo PolyDADMAC ma ke ʻano he flocculant a me ka coagulant a hoʻohana nui ʻia i nā kahua mālama wai like ʻole, me ka mālama ʻana i ka wai ʻona a me ka mālama ʻana i ke kaona. Hiki iā ia ke hana wikiwiki i nā flocs nui a paʻa i ka wai ʻino a hoʻopau pono i nā mea paʻa i hoʻopaʻa ʻia, nā ion metala kaumaha a me nā mea haumia.
I ka mālama ʻana i ka wai ʻino mai ka pulp a me nā wili pepa, ʻike nui ʻia ka hana hana o PolyDADMAC ma nā ʻano aʻe:
Ka hoʻokaʻawale ʻana: No ka mea he kiʻekiʻe ka uku o ka PolyDADMAC, hiki iā ia ke hoʻopili koke i nā mea paʻa i hoʻopaʻa ʻia a me nā ʻāpana colloidal i hoʻopiʻi maikaʻi ʻia, e lilo ai lākou i ka paʻa ma o ka hoʻokaʻawale ʻana, a laila hoʻohui ʻia e hana i nā flocs o nā ʻāpana nui.
Ka hana ʻana: I ka hana ʻana o ka floc, e huki ia i nā mea paʻa a me nā ʻāpana colloidal i loko o ka wai ʻōpala i loko o ka floc, e loaʻa ai ka hoʻokaʻawale paʻa-wai ma o ka hana kino.
Ka hopena hopu puʻupuʻu: Hiki i nā polymers kiʻekiʻe ke hana i kahi ʻano pūnaewele paʻa, e hoʻopaʻa i nā mea paʻa i hoʻokuʻu ʻia a me nā ʻāpana colloidal i loko e like me ka ʻupena lawaiʻa, a laila e loaʻa ai ka hoʻokaʻawale kūpono.
Ke hoʻohālikelike ʻia me nā ʻano hana hoʻomaʻemaʻe wai ʻē aʻe, me ka hoʻohana ʻana i ka PolyDADMAC e mālama i ka pulp a me ka wai wili pepa e loaʻa i kēia mau pono:
ʻO ke kiʻekiʻe o ka hoʻopiʻi kiʻekiʻe: ʻO ka polyDADMAC kiʻekiʻe o ka uku hoʻopiʻi e hiki ai iā ia ke hoʻopaʻa maikaʻi i nā mea paʻa i hoʻopaʻa ʻia a me nā ʻāpana colloidal, e hoʻomaikaʻi ana i ka maikaʻi o ka mālama ʻana.
Hiki ke hoʻololi ikaika: He hopena maikaʻi ko PolyDADMAC ma nā ʻano ʻano pulp a me ka wai ʻōpala pepa a ʻaʻole pili ʻia e ka loli o ka wai.
ʻO ka hana kiʻekiʻe a me ka hoʻohana haʻahaʻa: Ke hoʻohana nei i ka PolyDADMAC e like meFlocculanta hiki i ka coagulant ke hoʻemi nui i ke ʻano o nā kemika, ʻoiai e hoʻomaikaʻi ana i ka pono o ka mālama ʻana a me ka hōʻemi ʻana i nā kumukūʻai hana.
Pili kaiapuni: ʻO PolyDADMAC kahi polymer cationic. ʻO ka floc i hana ʻia ma hope o ka hoʻohana ʻana ʻaʻole hiki ke hoʻoheheʻe ʻia i mau mea ʻino a maikaʻi hoʻi i ke kaiapuni.
I ka hopena, PolyDADMAC, ma ke ʻano hePolymer Molekala Kiʻekiʻe, loaʻa nā mea maikaʻi o ka maikaʻi kiʻekiʻe, ka hoʻohana haʻahaʻa, a me ke aloha kaiapuni, a he hana koʻikoʻi i ka mālama ʻana i ka wai ʻino mai ka pulp a me ka wili pepa. I ka manawa paʻakikī ke pale ʻana i ke ʻano o ka mālama ʻana i ke kaiapuni, ʻo PolyDADMAC kahi huahana kemika kaulana e kū ana i nā ʻano o nā huahana pili i ke kaiapuni.
Ka manawa hoʻouna: Sep-12-2024