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Umsuka nokusetshenziswa kweZeolite

I-Zeolite ngumaminerali wemvelo okhiqizwa ngumlotha wentaba-mlilo owela emthonjeni wamanzi ane-alkaline nangaphansi kwengcindezi eminyakeni eminingi edlule. Le nhlanganisela yengcindezi ibangelaI-Zeolite ukwakha i- I-3D isakhiwo se-silica-oxygen tetrahedral esinesakhiwo sezinyosi esinezimbobo. It ingenye yamaminerali angavamile anecala elibi lemvelo. Inhlanganisela yesakhiwo sezinyosi kanye nenetha elibi lenziwe lisebenzeI-Zeolite ukumunca kokubili uketshezi namakhemikhali. Inkokhiso engemihle ilinganiselwa kuma-cations afana ne-calcium, i-magnesium, i-potassium ne-sodium, futhi lezi zingxoxo zingashintshaniswa.

Cishe eminyakeni engama-250,000 eyedlule, endaweni yaseRotorua / Taupo, umsebenzi omkhulu wentaba-mlilo wakhiqiza umlotha omkhulu wentaba-mlilo. Lezi zintaba-mlilo zagezwa zacekelwa phansi zamachibi, zakha izingqimba zomhlaba ezinamamitha angama-80 ukujula. Umsebenzi olandelayo wokushisa emhlabathini uphoqa amanzi ashisayo (i-120 iziqu) phezulu phezulu ngalezi zimali ezi-stratigraphic, siguqule ubumba lube yidwala elithambile ngokulandelana kwesakhiwo kwangaphakathi, yingakho igama I-Zeolite.

Types ye I-Zeolite

Kukhona okungaba ngama-40 ahlukile I-Zeolite izinhlobo, nokubukeka kwazo kuncike ezimweni ngenkathi yenqubo yokwakheka. AbakwaNgakuruI-Zeolites etholakala endaweni yentaba-mlilo iTaupo enkabeni yeNorth Island yaseNew Zealand ikakhulukazi imordenite ne-clinoptilolite. Indawo, ubude nobukhulu bokugeleza kwamanzi ashisayo ekwakhekeni kunquma izinga lokushintsha okushisayo. Idiphozithi eseduze kwemifantu eshisayo ishintshwa ngokuphelele futhi imvamisa inamandla amakhulu womshini, kuyilapho leyo ekude ivamise ukushintshwa kabi futhi ingahle idilizwe ibe udaka.

Workumgomo we I-Zeolite 

Okokuqala, umthamo we-adsorption. Esigabeni sokuwohloka okushisayo, izinto ezi-amorphous zigezwa ngobumba, kushiye uhlaka lwe-3D lwe-aluminium ne-silica. Ngenxa yokumiswa okuyingqayizivele, banenkokhiso ephezulu ephikisayo (umthamo wokushintshaniswa kwe-cation, imvamisa mkhulu kune-100meq / 100g). Ama-cations akhokhiswa kahle kusixazululo (noma ama-molecule amiswe emoyeni) angangena kwi-crystal lattice, futhi ngokuya ngenani le-pH, ukuhlushwa kwe-cation nezici zokushaja zingakhishwa ngokuhamba kwesikhathi. Le nhlanganisela yesakhiwo sezinyosi kanye nenetha elibi lenetha livumela i-I-Zeolite ukumunca kokubili uketshezi namakhemikhali. I-Zeolite ufana nesipanji nomazibuthe. Munca iziphuzo bese ushintshanisa amakhemikhali kazibuthe, uzenze zilungele izinhloso ezahlukahlukene, kusukela ekuqedeni iphunga ekuhlanzeni izinto ezinobuthi ezichichima, ekunciphiseni i-nitrogen ne-phosphorus leachate emapulazini.

Okwesibili, umthamo wokumunca umzimba. I-Zeolite inendawo enkulu yangaphakathi nengaphandle ethile (kufika kuma-square metres ayi-145 / g), ekwazi ukumunca uketshezi oluningi. Uma somile, ezinye zazoI-Zeolite ingamunca kufika ku-70% wesisindo sayo esesimweni soketshezi. Isibonelo, otshanini bezemidlalo,I-Zeolite izomunca izakhamzimba ezincibilikayo kumanyolo owengeziwe, ukuze ikwazi ukuhlangabezana nezidingo zezitshalo ngokuzayo ukuze imunce amanzi futhi yenyuse amandla okubamba amanzi ngaphandle kokuthikameza isikhala sepore nokungena.


Isikhathi Iposi: Aug-11-2021