Kev kho dej khib nyiabfeem ntau yuav tshem tawm cov hlau hnyav thiab / lossis cov organic sib txuas los ntawm cov dej ntws tawm. Kev tswj hwm pH los ntawm kev sib ntxiv ntawm cov tshuaj acid / alkaline yog ib feem tseem ceeb ntawm txhua qhov kev kho dej khib nyiab, vim nws tso cai rau cov khib nyiab pov tseg kom sib cais ntawm cov dej thaum lub sijhawm kho.
Cov dej muaj cov khoom zoo hydrogen ions thiab tsis zoo hydroxide ions. Hauv cov dej acidic (pH <7), qhov siab ntawm qhov zoo hydrogen ions tam sim no, thaum nyob rau hauv dej nruab nrab, cov concentration ntawm hydrogen thiab hydroxide ions yog sib npaug. Alkaline (pH> 7) dej muaj ntau tshaj ntawm cov hydroxide ions tsis zoo.
PH kev cai nyob rau hauvKev kho dej khib nyiab
Los ntawm kev kho cov pH, peb tuaj yeem tshem tawm cov hlau hnyav thiab lwm yam hlau toxicity los ntawm dej. Nyob rau hauv feem ntau cov dej ntws los yog dej pov tseg, hlau thiab lwm yam kuab paug dissolves thiab tsis tawm. Yog tias peb nce pH, lossis qhov tsis zoo hydroxide ions, cov hlau ions zoo yuav tsim cov ntawv cog lus nrog cov tsis zoo hydroxide ions. Qhov no tsim cov tuab, insoluble hlau particle uas tuaj yeem ua rau dej nag tawm ntawm cov dej khib nyiab lossis lim rau kev siv lub lim xovxwm.
High pH thiab qis pH dej kho
Nyob rau hauv acidic pH tej yam kev mob, ntau zoo hydrogen thiab hlau ions tsis muaj ib daim ntawv cog lus, ntab nyob rau hauv dej, yuav tsis precipitate. Ntawm nruab nrab pH, hydrogen ions ua ke nrog hydroxide ions tsim dej, thaum hlau ions tseem tsis hloov. Ntawm alkaline pH, ntau tshaj hydroxide ions ua ke nrog hlau ions los ua hlau hydroxide, uas tuaj yeem raug tshem tawm los ntawm kev pom lossis nag lossis daus.
Vim li cas thiaj tswj pH hauv dej khib nyiab?
Ntxiv nrog rau cov kev kho mob saum toj no, pH ntawm cov dej kuj tuaj yeem siv los tua cov kab mob hauv cov dej khib nyiab. Feem ntau cov organic teeb meem thiab cov kab mob uas peb paub txog thiab tuaj rau hauv kev sib cuag nrog txhua hnub yog qhov zoo tshaj plaws rau nruab nrab lossis me ntsis alkaline ib puag ncig. Ntawm acidic pH, ntau tshaj hydrogen ions pib tsim cov ntawv cog lus nrog cov hlwb thiab rhuav tshem lawv, ua rau lawv txoj kev loj hlob qeeb lossis tua lawv tag nrho. Tom qab lub voj voog kho dej khib nyiab, pH yuav tsum tau rov qab los rau nruab nrab los ntawm kev siv tshuaj ntxiv, txwv tsis pub nws yuav ua rau txhua lub hlwb uas nws kov.
Post lub sij hawm: Feb-24-2023