Indlela yokulinganisa ubutyuwa bamanzi amdaka ngumcimbi oxhalabisa kakhulu wonke umntu. Iyunithi ephambili esetyenziselwa ukulinganisa ubutyuwa bamanzi yi-EC/w, emele ukuhanjiswa kwamanzi. Ukumisela ukuhanjiswa kwamanzi kunokuxelela ukuba ingakanani ityuwa ekhoyo ngoku emanzini.
I-TDS (icaciswe ngo-mg/L okanye i-ppm) ibhekisa kwinani leeyoni ezikhoyo, hayi indlela yokusebenza. Nangona kunjalo, njengoko kukhankanyiwe ngaphambili, i-conductivity ihlala isetyenziselwa ukulinganisa inani leeoni ezikhoyo.
Iimitha ze-TDS zilinganisa i-conductivity kwaye ziguqule eli xabiso kufundo kwi-mg/L okanye i-ppm. I-Conductivity ikwayindlela engathanga ngqo yokulinganisa ubutyuwa. Xa ulinganisa ubutyuwa, iiyunithi zidla ngokuchazwa kwi-ppt. Ezinye izixhobo ze-conductivity ziza ziqwalaselwe kwangaphambili kunye nokukhetha ukulinganisa ubutyuwa ukuba uyafunwa.
Nangona kunokuba nzima ukuqonda, amanzi etyuwa athathwa njengomqhubi olungileyo wombane, oku kuthetha ukuba xa uzama ukugcina i-chemistry echanekileyo yendawo yangaphandle, ukufundwa kwakho kwe-EC / w kufuneka kube phezulu. Xa ezi zifundo zehla kakhulu, kusenokuba lixesha lokunyanga amanzi.
Inqaku elilandelayo liqwalasela ngakumbi ubutyuwa kunye nendlela yokulinganisa ngokuchanekileyo.
Yintoni ubutyuwa emanzini?
Ubutyuwa bubhekisa kwisixa setyuwa ethe yanyibilika ngokufanelekileyo kumzimba wamanzi. Iyunithi yokuqala esetyenziselwa ukulinganisa ubutyuwa bamanzi yi-EC/w, emele ukuhanjiswa kombane kwamanzi. Nangona kunjalo, ukulinganisa ubutyuwa bamanzi nge-conductivity sensor kuya kukunika iyunithi eyahlukileyo yokulinganisa kwi-mS / cm, inani le-millisiemens ngesentimitha yamanzi.
Imilimitha enye Siemens ngesentimitha ilingana ne-1,000 micro Siemens ngesentimitha, kwaye iyunithi yi-S/cm. Emva kokuthatha lo mlinganiso, iwaka lewaka le-micro-Siemens lilingana ne-1000 EC, i-conductivity yombane yamanzi. Umlinganiselo we-1000 EC nawo ulingana nama-640 eenxalenye kwisigidi ngasinye, eyiyunithi esetyenziselwa ukumisela ubutyuwa kumanzi edama lokuqubha. Ukufundwa kwetyuwa echibini lamanzi anetyuwa kufuneka kube yi-3,000 PPM, okuthetha ukuba i-millisiemens ngesentimitha yokufunda kufuneka ibe yi-4.6 mS/cm.
Yenziwa njani ityuwa?
Unyango lobutyuwa lunokwenziwa ngeendlela ezintathu ezibandakanya ubutyuwa obuphambili, ubutyuwa obusesekondari, kunye nobutyuwa obuphezulu.
Ityuwa esisiseko yindlela eqhelekileyo, eyenzeka ngeenkqubo zendalo, ezifana nokubunjwa kwetyuwa ngenxa yemvula ngexesha elide. Xa kune imvula, enye ityuwa emanzini iba ngumphunga ukusuka kuluhlu lwamanzi okanye emhlabeni. Ezinye iityuwa zinokudlula ngokuthe ngqo kumanzi aphantsi komhlaba okanye emhlabeni. Umlinganiselo omncinci wamanzi nawo uya kuqukuqela emilanjeni nakwimisinga kwaye ekugqibeleni aye kumalwandle namachibi.
Ngokuphathelele ubutyuwa besibini, olu hlobo lwetyuwa lwenzeka xa itafile yamanzi iphakama, ngokuqhelekileyo ngenxa yokususwa kwezityalo kwindawo ethile.
Ubutyuwa bunokufumaneka ngokuba netyuwa ekwinqanaba eliphezulu, okwenzeka xa amanzi esetyenziselwa ukulima kunye nezityalo kwimijikelo emininzi. Ngalo lonke ixesha isityalo sinkcenkceshelwa, intwana yamanzi iyaba ngumphunga, nto leyo ethetha ukwanda kwetyuwa. Ukuba amanzi aphinda asetyenziswe rhoqo, isiqulatho setyuwa kwisityalo sinokuba phezulu kakhulu.
Izilumkiso xa usebenzisa iimitha conductivity
1. Xa ulinganisa amanzi acocekileyo okanye amanzi ahlambulukileyo, ukwenzela ukuba ugweme ukukhukuliseka kwexabiso elilinganisiweyo, kucetyiswa ukuba usebenzise i-groove evaliweyo ukwenza umlinganiselo wokuhamba kwimeko evaliweyo. Ukuba ibhekile isetyenziselwa isampuli kunye nokulinganisa, iimpazamo ezinkulu ziya kwenzeka.
2. Ekubeni imbuyekezo yeqondo lokushisa ithatha i-coefficient yokushisa emiselweyo ye-2%, ukulinganiswa kwamanzi a-ultra- kunye ne-high-purity yamanzi kufuneka kuqhutywe ngaphandle kwembuyekezo yeqondo lokushisa kangangoko kunokwenzeka, kwaye itafile kufuneka ihlolwe emva kokulinganisa.
3. Isitulo seplagi ye-electrode kufuneka sikhuseleke ngokupheleleyo kumswakama, kwaye imitha kufuneka ibekwe kwindawo eyomileyo ukuphepha ukuvuza okanye iimpazamo zokulinganisa kwemitha ngenxa yokutshiza kwamathontsi amanzi okanye ukufuma.
4. I-electrode yokulinganisa iyinxalenye echanekileyo, engenakuchithwa, imilo kunye nobukhulu be-electrode ayinakuguqulwa, kwaye ayikwazi ukucocwa nge-asidi eqinile okanye i-alkali, ukwenzela ukuba ingatshintshi i-electrode rhoqo kwaye ithintele ukuchaneka kwesixhobo sokulinganisa isixhobo.
5. Ukuze kuqinisekiswe ukuchaneka kokulinganisa, i-electrode kufuneka ihlanjululwe kabini ngamanzi adibeneyo (okanye amanzi adityanisiweyo) ngaphantsi kwe-0.5uS / cm ngaphambi kokusetyenziswa (i-platinum emnyama i-electrode kufuneka ifakwe emanzini adibeneyo ngaphambi kokusetyenziswa emva kokuba yomile ixesha elithile), Emva koko hlambulula ngamanzi esampula avavanyiwe kathathu ngaphambi kokulinganisa.
Ixesha lokuposa: May-16-2023