Ubusazi, ukuba amanzi enza ukuya kuthi ga kwi-75% yobunzima bomzimba womntu. Ilahleko ye-4% yamanzi apheleleyo emzimbeni ikhokelela ekuphelelweni kwamanzi, kwaye ilahleko ye-15% inokubulala. Ngokunjalo, umntu unokuphila inyanga yonke engatyanga kodwa ebengayi kuphila iintsuku ezi-3 ngaphandle kwamanzi. Oku kuxhomekeka kubalulekileyo emanzini kulawula ngokubanzi zonke iintlobo zobomi. Ngokucacileyo, amanzi abalulekile ukuze umntu aphile, kodwa yintoni eyenza abe yimfuneko?
Ayikho enye iamolekyuli efana namanzi xa kufikwa kwizinto ezizodwa ezixhasa ubomi. Okuvuyisayo kukuba, abaphandi bayaqhubeka nokuseka iindlela ezintsha zokucoca amanzi ngokuxhomekeke kumgangatho wamanzi acocwayo, iindleko zenkqubo yokucocwa, kunye nemigangatho yomgangatho olindelekileyo kumanzi acociweyo.
Injongo kukuvelisa amanzi alungele iinjongo ezithile. Amanzi amaninzi ayacocwa kwaye abulawe iintsholongwane ukuze asetyenziswe ngabantu (amanzi okusela), kodwa ukucocwa kwamanzi kunokwenziwa ngeenjongo ezahlukeneyo, ezibandakanya ezonyango, ezamachiza, imichiza, kunye nosetyenziso lwemizi-mveliso. Iyamangalisa indlela imolekyuli elula ebaluleke ngayo kwihlabathi liphela kwizinto eziphilayo ezineemfuno ezahlukeneyo.
Uvavanyo lokuqala lokuhluza amanzi lubuyela kwinkulungwane ye-17. UMhlekazi uFrancis Bacon wazama ukukhupha ityuwa kumanzi olwandle edlula kwisihluzo sesanti. Nangona ulingo lwakhe lungazange luphumelele, lwaphawula ukuqala komdla omtsha kwintsimi. Ootata be-microscope, u-Antonie van Leeuwenhoek noRobert Hooke, basebenzisa imakroskopu esanda kuyilwa ukuze bajonge okokuqala amasuntswana ezinto eziphathekayo ajingayo emanzini, bebeka isiseko sokuqonda kwixa elizayo iintsholongwane ezifumaneka emanzini.
Namhlanje abaphandi baqhubeka begqibezela iindlela kunye nobuchwephesha banamhlanje, ukucocwa kwamanzi kuye kwaphucula ngokumangalisayo. Ezinye iindlela zokucoca amanzi ezinje, Izihluzi zeMembrane ngoku zisetyenziselwa ukuhluza zombini amanzi okusela, kwizicelo zorhwebo nezoshishino. Kumanzi okusela, izihluzi ze-membrane zinokususa phantse onke amasuntswana amakhulu kune-0.2 μm-kubandakanya i-giardia kunye ne-cryptosporidium. Izihluzi zeMembrane ziyindlela esebenzayo yonyango lwenqanaba lesithathu xa kunqweneleka ukuphinda kusetyenziswe amanzi kushishino, ngeenjongo ezilinganiselweyo zasekhaya, okanye phambi kokukhuphela amanzi kumlambo osetyenziswa ziidolophu ezisezantsi komlambo. Zisetyenziswa kakhulu kwishishini, ngakumbi ukulungiselela isiselo (kubandakanywa namanzi asebhotileni). Ukosulela, umva inkqubo ye-osmosis membrane yenye yeendlela ezisetyenziswa kakhulu namhlanje.
I-Reverse osmosis inokususa iintlobo ezininzi zeekhemikhali ezinyityilisiweyo nezinqunyanyisiweyo kunye nezo zebhayoloji (ingakumbi ibhaktheriya) emanzini, kwaye isetyenziswa kuzo zombini iinkqubo zoshishino kunye nokuveliswa kwamanzi okusela. Silandele endleleni, njengoko sabelana ngolwazi oluvela kubaphandi beengcali ze-HID kwi-reverse osmosis membrane kunye nokuveliswa kwenkqubo. Wamkelekile ngemibuzo kwaye ikuvumela ukuba wabelane ngolwazi lwakho kwi-ajenda, ukunceda uluntu lokucoca amanzi lufumane ulwazi oluninzi okufumana amanzi angcono, akhuselekileyo, kunye nasemgangathweni.
Ngaphandle kokuqonda ngokubanzi ixabiso lokwenyani, lamanzi amaninzi, asiyi kuba nakho ukuwukhusela lo mthombo ubalulekileyo ukuze kuxhamle wonke umntu.
Ixesha lokuposa: Oct-15-2021