Ukucocwa kwamanzi amdakangokuqhelekileyo kubandakanya ukususwa kwesinyithi esinzima kunye / okanye iikhompawundi eziphilayo kumanzi amdaka.Ukulawula i-pH ngokongezwa kweekhemikhali ze-asidi / ze-alkaline yinxalenye ebalulekileyo kuyo nayiphi na inkqubo yokucoca amanzi amdaka, njengoko ivumela inkunkuma echithwe ukuba ihlulwe emanzini ngexesha lokunyanga.
Amanzi aqulethe ii-ion zehydrogen ezichajiwe kakuhle kunye nee-ion zehydroxide ezichajiwe kakubi.Kwi-acidic (pH <7) yamanzi, i-concentrations ephezulu ye-hydrogen ions e-positive ikhona, ngelixa kumanzi angathathi hlangothi, ukuxinwa kwe-hydrogen kunye ne-hydroxide ion kulinganiswe.Amanzi ealkaline (pH>7) aqulathe ukugqithiswa kwee-ion ze-hydroxide engalunganga.
PH umgaqo kwiukucocwa kwamanzi amdaka
Ngokuhlengahlengisa ngokwekhemikhali i-pH, sinokususa isinyithi esinzima kunye nezinye iintsimbi ezinetyhefu emanzini.Kwiindawo ezininzi ezibalekayo okanye amanzi amdaka, isinyithi kunye nezinye izinto ezingcolisayo ziyanyibilika kwaye azihlali ngaphandle.Ukuba siphakamisa i-pH, okanye isixa see-ion ze-negative hydroxide, ii-ion zetsimbi ezihlawulwe kakuhle ziya kwenza iibhondi kunye ne-ioni ye-hydroxide echajiwe kakubi.Oku kudala intsimbi eshinyeneyo, enganyibilikiyo enokuthi ikhutshwe emanzini amdaka ngexesha elithile okanye ihluzwe ngaphandle kusetyenziswa isihluzo sokucoca.
I-pH ephezulu kunye nonyango lwamanzi oluphantsi lwe-pH
Kwiimeko ze-acidic pH, i-hydrogen engaphezulu kunye ne-ion zetsimbi ayinayo nayiphi na ibhondi, idada emanzini, ayiyi kudlula.Kwi-pH engathathi hlangothi, i-hydrogen ions idibanisa kunye ne-hydroxide ions ukwenza amanzi, ngelixa i-ion zetsimbi zihlala zingatshintshi.Kwi-alkaline pH, ii-ion ze-hydroxide ezingaphezulu zidibanisa kunye ne-ion zetsimbi ukwenza i-metal hydroxide, enokususwa ngokucoca okanye imvula.
Kutheni ulawula i-pH kumanzi amdaka?
Ukongeza kolu nyango lungentla, i-pH yamanzi isenokusetyenziswa ukubulala iintsholongwane kumanzi amdaka.Uninzi lwezinto eziphilayo kunye neebhaktheriya esiziqhelileyo kwaye sidibana nazo yonke imihla zifaneleke kakhulu kwiindawo ezingathathi hlangothi okanye ezine-alkaline kancinane.Kwi-acidic pH, ii-ion ze-hydrogen ezingaphezulu ziqala ukwenza amakhonkco kunye neeseli kwaye ziwaphule, zicotha ukukhula kwazo okanye zibulawe ngokupheleleyo.Emva komjikelezo wokucoca kwamanzi amdaka, i-pH kufuneka ibuyiselwe ekungathathi hlangothi ngokusebenzisa iikhemikhali ezongezelelweyo, ngaphandle koko iya kuqhubeka nokulimaza naziphi na iiseli eziphilayo ezizichukumisayo.
Ixesha lokuposa: Feb-24-2023