1, mmiri ọkụ na-eri nri iji dozie uru pH nke ihe kpatara ya
N'oge a, ọtụtụ ndị na-ekpo ọkụ na China na-eji mmiri reverse osmosis demineralized mmiri ma ọ bụ sodium ion resin mgbanwe mmiri nro, reverse osmosis demineralized water ma ọ bụ sodium ion resin mgbanwe rọrọ mmiri pH uru bụ ukwuu n'ime ala na acidic, reverse osmosis demineralized mmiri pH uru bụ n'ozuzu 5-6. sodium ion resin mgbanwe rọrọ mmiri pH uru bụ n'ozuzu 5.5-7.5, iji dozie corrosion nke acidic mmiri ọkụ na-esi mmiri ọkụ na ọkpọkọ, dị ka ndokwa nke mba ọkọlọtọ BG/T1576-2008, pH uru nke ulo oru ji esi mmiri ọkụ. mmiri dị n'etiti 7-9 na pH uru nke mmiri demineralized dị n'etiti 8-9.5, ya mere, mmiri ọkụ ọkụ kwesịrị ịgbanwe pH uru.
2, ụkpụrụ bụ isi nke ịgbakwunye sodium carbonate na mmiri ọkụ na-eri nri iji dozie uru pH
Sodium carbonate na-akpọkarị soda, soda ash, soda ash, ịsa alkali, nkewa dị ka nnu, ọ bụghị alkali, chemical usoro Na2CO3, n'okpuru nkịtị ọnọdụ maka ọcha ntụ ntụ ma ọ bụ ezi nnu.Ụkpụrụ bụ isi nke ịgbakwunye sodium carbonate na mmiri ọkụ ọkụ iji dozie uru pH bụ iji sodium carbonate gbazee na mmiri ma bụrụ alkaline, nke nwere ike wepụ carbon dioxide n'ime mmiri nri acidic ma dozie corrosion nke acid dị nro ma ọ bụ nnu. mmiri na mmiri ọkụ na pipeline.Sodium carbonate bụ electrolyte na-adịghị ike, gbazere n'ime mmiri iji mepụta ngwọta nchekwa nke sodium carbonate na sodium bicarbonate, enwere nguzozi electrolytic na ngwọta, na oriri nke electrolytic hydroxide, nguzozi ga-aga n'ihu na-aga n'aka nri, ya mere. pH dị na mmeghachi omume adịghị agbanwe nke ukwuu.
Usoro hydrolysis nke sodium carbonate:
Na2CO3 Sodium carbonate +H2O mmiri = NaHCO3 sodium bicarbonate +NaOH sodium hydroxide
Usoro hydrolysis nke abụọ nke sodium carbonate:
NaHCO3 sodium bicarbonate +H2O mmiri =H2CO3 carbonic acid +NaOH sodium hydroxide
Sodium carbonate mbụ hydrolyzed ion nhata:
(CO3) 2-carbonic acid +H2O mmiri = HCO3- bicarbonate + OH- hydroxide
Sodium carbonate second hydrolyzed ion equation:
HCO3- bicarbonate +H2O mmiri = H2CO3 carbonic acid + OH- hydroxide
3, ụkpụrụ bụ isi nke ịgbakwunye sodium hydroxide na mmiri ọkụ iji dozie uru pH
A na-akpọkwa sodium hydroxide caustic soda, caustic soda, caustic soda, caustic soda, na-abụkarị flake ọcha, usoro ọgwụ NaOH, sodium hydroxide nwere alkaline siri ike, nke na-emebi emebi.
Nhazi ionization maka sodium hydroxide: NaOH=Na++OH-
Ịgbakwunye sodium hydroxide na mmiri nke ji esi mmiri ọkụ nwere ike kwụsie ike na ihe nkiri na-echebe n'elu metal, melite pH uru nke ji esi mmiri ọkụ nri mmiri na ọkụ ọkụ, nke mere iji dozie corrosion nke acid nro mmiri ma ọ bụ demineralized mmiri na. igwe na-ekpo ọkụ na pipeline, ma chebe akụrụngwa ígwè site na corrosion.
4. A na-atụnyere uru na ọghọm dị na iji sodium carbonate ma ọ bụ sodium hydroxide iji dozie uru pH maka mmiri ọkụ ọkụ.
4.1 Ọsọ nke ibuli pH uru na sodium carbonate na sodium hydroxide maka nri nri ji esi mmiri ọkụ na oge idobe mmetụta ojiji dị iche.
Ọsọ ịgbakwụnye sodium carbonate na mmiri ọkụ ọkụ iji mee ka uru pH dị nwayọ karịa nke sodium hydroxide.N'ihi na sodium carbonate na-emepụta ngwọta nchekwa, ọ nwere obere mgbanwe ma kwụsie ike ma dị mfe ịhazi.Agbanyeghị, oke ngbanwe nke pH nwere oke.Mgbe ị na-edozi otu uru pH ahụ, ọnụọgụ sodium carbonate ga-adị ukwuu karịa nke sodium hydroxide.A na-echekwa mmetụta eji eme ihe ruo ogologo oge, na pH nke mmiri adịghị mfe ịdaba.
Sodium hydroxide bụ ntọala siri ike na electrolyte siri ike, sodium hydroxide iji gbanwee pH uru nke mgbanwe dị ukwuu, sodium hydroxide mgbe mgbakwunye mmiri pH dị mfe ịbawanye, mezie pH uru ngwa ngwa na ọzọ kpọmkwem, ma ọ dịkwa mfe. kwatu apụghị itinye nke ukwuu, jiri ya tụnyere sodium carbonate ịgbakwunye ukwuu obere nwere ike iru pH index chọrọ, ya bụ, ọ bụ ezie na sodium hydroxide pH uru mụbara, Otú ọ dị, ego nke sodium hydroxide kwukwara bụghị nnukwu, ya bụ, na ikike nke mmiri iji wepụ acid nke hydroxide otu adịghị abawanye, pH ga-adaba n'oge na-adịghị anya.
4.2 Mmerụ ahụ sitere na mgbakwunye oke sodium carbonate na sodium hydroxide na-abawanye uru pH maka nri mmiri ọkụ dị iche.
Ịgbakwunye sodium carbonate dị ukwuu na mmiri ọkụ iji dozie uru pH ga-eme ka nnu dị n'ime mmiri ite na conductivity;Enwere ion bicarbonate karịa n'ime mmiri ite ahụ, ion bicarbonate na-esikwa ngwa ngwa na-agbaze ka ọ bụrụ carbon dioxide mgbe ọkụ.CO2 na-abanye n'ọkụ na-ekpo ọkụ na mmiri condensate na uzuoku.Sodium carbonate ọ bụghị naanị na ọ nweghị ike ịhazigharị pH uru nke uzuoku na uzuoku na-alọghachi mmiri, ma na-ebelata pH uru nke uzuoku na condensate, na-emebi ihe na-ekpo ọkụ ọkụ na condensate pipeline.Ihe kpatara ion iron na uzuoku condensate ji eweghachi mmiri gafere agba agba odo ma ọ bụ ọbara ọbara.
Ịgbakwunye sodium hydroxide dị ukwuu na mmiri ọkụ iji dozie uru pH ga-eme ka mmiri mmiri alkali dị elu, na mmiri na soda ga-apụta.Ọnụ ọgụgụ nke sodium hydroxide adịghị mfe ịchịkwa, na oke NaOH n'efu ga-eme ka nnukwu alkalinity dị ukwuu, na embrittlement alkali ga-emekwa ka corrosion na ngwá ọrụ.Onye odee ahụ ahụla otu iko eriri eriri plastik gbasiri ike nke jupụtara na patches na saịtị onye ọrụ, nke mebiri emebi ma mebie ya n'ihi iji sodium hydroxide na-ahazi uru pH nke debrine.Sodium hydroxide enweghị ike ịgbanwe pH uru nke uzuoku na uzuoku condensation nloghachi mmiri, na ike ịchịkwa corrosion nke uzuoku na uzuoku condensation nloghachi mmiri usoro akụrụngwa na anwụrụ netwọk.
4.3 Nchekwa nke sodium carbonate na sodium hydroxide eji na mmiri ọkụ na-eri nri iji bulie uru pH dị iche.
Sodium carbonate bụ dịtụ nwayọọ, bụ nke nri ọkwa ihe, obere mkpali, nta corrosion, nkịtị nwere ike metụ aka site n'aka, ogologo oge mkpa iyi uwe.
Sodium hydroxide bụ ihe dị ize ndụ, nke na-emebi emebi, na ngwọta ya ma ọ bụ uzuzu na-efesa na akpụkpọ ahụ, karịsịa na akpụkpọ anụ mucous, nwere ike ịmepụta scabs dị nro, ma nwee ike ịbanye n'ime anụ ahụ dị omimi.Ọkụ na-ahapụ ọnya.Ịgbasa n'ime anya, ọ bụghị nanị na-emebi cornea, kamakwa na-emebi anụ ahụ miri emi nke anya.Ya mere, onye na-arụ ọrụ kwesịrị itinye ude na-anọpụ iche na hydrophobic na akpụkpọ ahụ, ọ ghaghịkwa iyi uwe ọrụ, ihe mkpuchi, iko nchebe, uwe mkpuchi roba, akwa mkpuchi roba, ogologo akpụkpọ ụkwụ roba na ihe nchebe ọrụ ndị ọzọ iji rụọ ọrụ dị mma nke nchebe onwe onye.
Enwere ojiji na ule nyocha nke na-egosi: A na-eji sodium hydroxide na sodium carbonate mee ihe ọzọ, ma ọ bụ agwakọta, akụ na ụba ya na mmetụta ya dị mma karịa iji ụfọdụ pH regulator naanị.Mgbe ahụrụ uru pH nke mmiri na-enye ọkụ ọkụ dị oke ala, enwere ike ịgbakwunye ụfọdụ sodium hydroxide n'ụzọ kwesịrị ekwesị iji bulie uru pH ngwa ngwa.Mgbe emechara sodium hydroxide kpamkpam, enwere ike ịgbakwunye ụfọdụ carbonate sodium iji bulie carbonate na mmiri.Nke a nwere ike belata mbelata nke pH uru nke mmiri nri;N'ihi na ego nke sodium carbonate nwere ike tinye n'ime ihe, ike ịnọgide na-enwe carbonates na mmiri bụ ihe, otú na-emekarị sodium carbonate nwere ike na-eji na-ejigide pH uru nke mmiri na mmiri na mmiri ite, naanị mgbe pH uru nke. mmiri ahụ dị oke ala, onye edemede na-atụ aro ka iji sodium hydroxide mee ngwa ngwa na-abawanye uru pH, nke mere na abụọ ahụ na-ejikọta ọzọ, ma akụ na ụba na mmetụta dị mma.
Oge nzipu: Mar-01-2024
