He aha ka IX resin regeneration?
Ma kahi o hoʻokahi a ʻoi paha o ke kaʻapuni lawelawe, e luhi ka resin IX, ʻo ia hoʻi ʻaʻole hiki ke kōkua hou i nā hopena hoʻololi ion. Hana ʻia kēia i ka wā i paʻa ai nā ʻona iona haumia i kahi kokoke i nā pūnaewele hana i loaʻa ma ka matrix resin. E waiho maʻalahi, ʻo ka hoʻoulu hou ʻana kahi hana kahi i hoʻihoʻi ʻia nā hui anionic a i ʻole cationic i ka moʻo resin matrix. Mālama ʻia kēia ma o ka noi ʻana i kahi hopena hoʻōla hou, akā ʻo ke kaʻina kikoʻī a me nā regenerants i hoʻohana ʻia e kaukaʻi ʻia i nā ʻano hana.
Nā ʻano o ka hana hou ʻana o resin IX
Lawe pinepine nā ʻōnaehana IX i ke ʻano o nā kolamu i piha i hoʻokahi a ʻoi paha nā ʻano o ke kēpau. I loko o kahi pōʻai lawelawe, kuhikuhi ʻia kahi kahawai i ka kolamu IX kahi e hana ai me ka resin. ʻO ke pōʻaiapuni regeneration paha kekahi o nā ʻano ʻelua, kaukaʻi ʻia i ke ala e lawe ai ka hopena regenerant. Pākuʻi ʻia kēia mau mea:
1Co-flow regeneration (CFR). Ma CFR, ukali ka hopena regenerant i ke ala like me ka hopena e mālama ʻia, kahi maʻa mau a lalo i lalo i kahi kolamu IX. ʻAʻole hoʻohana maʻamau ʻo CFR ke koi ʻia nā kahe nui a pono paha ke kiʻekiʻe kiʻekiʻe, no nā cation acid ikaika (SAC) a me nā aniani base anion (SBA) ikaika mai ka mea e koi ʻia ai ka nui o ka hopena regenerant e hoʻohou hou i ka resin. Me ka ʻole o ka hoʻoulu hou ʻana, hiki i ka resin ke kulu i nā ions haumia i loko o ke kahawai i mālama ʻia i ka holo ʻoihana aʻe.
2Hoʻohuli kahe regeneration (RFR). ʻIke ʻia hoʻi me ka regeneration counterflow, hoʻopili ʻo RFR i ka hoʻopili ʻana o ka hopena regenerant i ka ʻaoʻao ʻē aʻe o ke kahe lawelawe. Hiki i kēia ke hoʻohālikelike i ka hoʻouka ʻana o ka hoʻouka / hoʻoulu i lalo a i ʻole ka hoʻoulu ʻana o ka hoʻoulu / hoʻoulu hou ʻana. I kēlā me kēia hihia, hoʻokaʻaʻike ka hopena regenerant i nā papa resin i luhi ʻole ʻia ma mua, e hana ana i ke kaʻina hana hoʻohou heʻoi aku ka maikaʻi. A ʻo kahi hopena, koi ʻo RFR i ka hopena regenerant liʻiliʻi a me nā hopena i ka liʻiliʻi o ke kahe o ka poke, ʻoiai he mea nui e hoʻomaopopo he maikaʻi wale ka hana a RFR inā noho mau nā papa resin i loko o ka hoʻoponopono hou ʻana. No laila, pono e hoʻohana wale ʻia ʻo RFR me nā kolamu moe IX, a i ʻole inā hoʻohana ʻia i kekahi ʻano o ka paʻa paʻa e pale ai i ka neʻe ʻana o ka resin i loko o ke kolamu.
Nā ʻanuʻu i komo i ka IX resin regeneration
ʻO nā ʻanuʻu maʻamau i ka pōʻaiapuni hoʻohuli hou o kēia mau mea:
Backwash. Hana ʻia ka backwashing i CFR wale nō, a pili i ka holoi ʻana i ke kēpau e hemo i nā mea paʻa paʻa a hāʻawi hou i nā lei resin compact. ʻO ka hoʻonāukiuki o nā lei e kōkua ai i ka hemo ʻana i nā ʻāpana maikaʻi a me nā waihona mai ka ʻāpana kēpau.
Inikua hou. Hoʻokomo ʻia ka hopena regenerant i loko o ka kolamu IX ma kahi haʻahaʻa haʻahaʻa e hiki ai i ka manawa kūpono kūpono me ka resin. ʻOi aku ka paʻakikī o ke kaʻina hana hou no nā hui moe e pili ana i nā resion anion a me cation. I ka moena hoʻowali IX, anai ia, no ka laʻana, hoʻokaʻawale mua ʻia nā kēpau, a laila hoʻopili ʻia kahi regenerant caustic, a ukali ʻia e kahi regenerant acid.
Ka hoʻoneʻe hou. Hoʻolei holoi ʻia ka regenerant e ka hoʻokomo lohi o ka wai dilution, maʻamau i ka helu kahe e like me ka hopena regenerant. No nā hui moe, hui ʻia ka neʻe ma hope o ka noi ʻana o kēlā me kēia o nā hoʻoponopono regenerant, a laila hui ʻia nā resins me ka ea i hoʻopaʻa ʻia a me ka nitrogen paha. Pono e mālama pono i ke kaʻina kahe o kēia pae "holoi holoi" i mea e hōʻino ʻole ai i nā lei kēpau.
Holoi. ʻO ka mea hope loa, holoi ʻia ka kēpau me ka wai ma ka helu kahe e like me ke kaʻina lawelawe. Pono e hoʻomau i ke kaʻina holoi a hiki i kahi pae pae wai i hoʻopaʻa ʻia.
He aha nā mea i hoʻohana ʻia no ka IX resin regeneration?
Kāhea kēlā me kēia kēpau resin i kahi huina o nā regenerant kemika hiki. Ma aneʻi, ua kuhikuhi mākou i nā hopena regenerant maʻamau e ka resin type, a hōʻuluʻulu i nā koho ʻē aʻe e pili ai.
Nā regenerants acid ikaika (SAC)
Hiki ke hoʻoulu hou ʻia nā resin SAC me nā waikawa ikaika. ʻO Sodium chloride (NaCl) ka mea ola maʻamau no ka palupalu ʻana i nā noi, no ka mea he maʻalahi a maʻalahi hoʻi ka loaʻa. ʻO ka potassium chloride (KCl) kahi koho maʻamau iā NaCl ke makemake ʻole ʻia ka sodium i ka hopena i mālama ʻia, ʻoiai ʻo ammonium chloride (NH4Cl) i pani pinepine ʻia no nā noi palupalu wela condensate.
ʻO Demineralization kahi kaʻina ʻelua ʻelua, ʻo ka mea mua e pili ana i ka lawe ʻana i nā cations e hoʻohana ana i kahi kēpau SAC. ʻO ka Hydrochloric acid (HCl) ka regenerant pono a hoʻohana nui ʻia no nā noi decationization. Sulphuric acid (H2SO4), ʻoiai ʻoi aku ka maikaʻi o ka hoʻolimalima a me ka hoʻoweliweli ʻē aʻe i ka HCl, kahi haʻahaʻa o ka hana, a hiki i ke kalipona sulphate ke hoʻoheheʻe ʻia inā pili i kahi kiʻekiʻe kiʻekiʻe loa.
Nā regenerants acid nawaliwali (WAC)
ʻO HCl ka mea palekana, ʻoi aku ka maikaʻi o ka regenerant no nā hana dealkalization. Hiki ke hoʻohana ʻia ʻo H2SO4 i kahi ʻokoʻa i ka HCl, ʻoiai e mālama ʻia i ka hoʻohaʻahaʻa haʻahaʻa e hōʻalo ai i ka paʻakai sulphate calcium. ʻO nā mea ʻē aʻe ʻē aʻe me nā waikawa nāwaliwali, e like me ka waikawa acetic (CH3COOH) a i ʻole ka waikawa citric, kahi i hoʻohana ʻia i kekahi manawa e hoʻoponopono hou i nā resins WAC.
Nā Base Anion ikaika (SBA) regenerants
Hiki ke hoʻoulu hou ʻia nā resin SBA me nā kumu ikaika. ʻAneʻane hoʻohana ʻia ʻo ka caustic soda (NaOH) ma ke ʻano he regenerant SBA no ka demineralization. Hiki ke hoʻohana ʻia i ka potash Caustic, ʻoiai he kumukūʻai.
Kūkulu nāwaliwali Base Anion (WBA)
Hoʻohana mau ʻo NaOH no ka hana hou ʻana o WBA, ʻoiai hiki ke hoʻohana ʻia nā alkalis nāwaliwali, e like me Ammonia (NH3), Sodium carbonate (Na2CO3), a i ʻole nā lime suspensions.
Ka manawa o ka manawa: Jun-16-2021