Usuku: 9 Januwari 2025
Indawo: Lima, ePeru —Njengoba isidingo sokufuywa kwezinhlanzi okusimeme sikhula emhlabeni jikelele, ukwethulwa kwezinzwa ze-chlorine ezihlala zicindezelwa njalo kushintsha imikhuba embonini. Lezi zinhlelo zokuqapha ezithuthukisiwe, eziqinisekisa ikhwalithi ephezulu yamanzi ezindaweni zokufuywa kwezinhlanzi, ziyathandwa ePeru, e-United States nakwamanye amazwe, okubonisa ushintsho olukhulu endleleni izinhlanzi nezinhlanzi zasolwandle ezifuywa ngayo.
I-chlorine ivame ukusetshenziswa ekukhuliseni izilwane zasemanzini ukubulala amagciwane emanzini, ukuvimbela ukusabalala kwezifo ezibangelwa amagciwane nokuqinisekisa impilo yezinhlobo zasemanzini. Kodwa-ke, inselele ibilokhu iwukugcina amazinga afanele e-chlorine ngaphandle kokufaka ubuthi ezinhlanzini engozini. Yilapho izinzwa ze-chlorine ezihlala zicindezelwa ziqala khona ukusebenza. Ngokungafani nezinhlelo zokuqapha zendabuko, ezinikeza ukufundwa ngezikhathi ezithile kuphela, lezi zinzwa zinikeza idatha eqhubekayo, yesikhathi sangempela ngamazinga e-chlorine, okuvumela abalimi ukuthi benze izinguquko ngokushesha njengoba kudingeka.
EPeru, lapho ukufuywa kwezinhlanzi sekuyingxenye ebalulekile yomnotho, ukwamukelwa kwalezi zinzwa kubonakala kuzuzisa kakhulu. Amapulazi amaningi ezinhlanzi asePeru, ikakhulukazi lawo agxile kuma-shrimp kanye ne-tilapia, abike ukwanda kwamazinga okusinda kanye nekhwalithi yomkhiqizo selokhu kwahlanganiswa izinzwa ze-chlorine ezihlala zicindezelekile. “Sibone ukwehla okufika ku-30% kwamazinga okufa kwezinhlanzi selokhu kwafakwa lezi zinzwa,” kusho u-Eduardo Morales, umnikazi wepulazi lama-shrimp ePiura. “Impendulo yesikhathi sangempela isenza sikwazi ukusabela ngokushesha ezinguqukweni zekhwalithi yamanzi, okuyinto ebalulekile.”
Izinzuzo zalezi zinzwa ezithuthukisiwe azigcini ePeru. E-United States, imisebenzi yokufuya izinhlanzi ogwini nayo isebenzisa lobu buchwepheshe. UMichael Johnson, isazi sezinto eziphilayo zasolwandle kanye nomeluleki wezokufuya izinhlanzi oseFlorida, uchaze wathi, “Ngokuqapha njalo, amapulazi angenza ngcono ukusetshenziswa kwawo kwe-chlorine, anciphise izindleko futhi anciphise umthelela emvelweni. Lokhu kubalulekile njengoba abathengi beqhubeka befuna ukucaca kanye nokusimama ekukhiqizweni kokudla kwasolwandle.”
Ngaphezu kwalokho, amazwe aseNingizimu-mpumalanga ye-Asia naseYurophu nawo abona izinzuzo zalezi zinzwa. EVietnam, lapho imboni yezimfanzi ichuma khona, abalimi basebenzisa ubuchwepheshe obuvumela ukuphathwa okungcono kwamazinga e-chlorine, okuholela ekuthuthukisweni kokuphepha komkhiqizo kanye nokunciphisa imfucuza. Okwamanje, izinkampani zaseYurophu ezifuywayo zasemanzini zisebenzisa ubuchwepheshe obufanayo ukubhekana nemithetho ye-EU mayelana nezinsalela zamakhemikhali emikhiqizweni yokudla kwasolwandle.
Naphezu kokwamukelwa okuhle, ochwepheshe baphawula ukuthi ukwamukelwa kabanzi kuzodinga imfundo kanye nokutshalwa kwezimali ekuqeqeshweni kwabasebenzi bezolimo zasemanzini. “Ubuchwepheshe ngokwabo buqondile, kodwa ukuqonda ukuthi bangahumusha kanjani futhi benze kanjani ngemininingwane enikezwayo kungaba yinselele kwabanye abalimi,” kusho uDkt. Sara Tello, umcwaningi wezolimo zasemanzini eNyuvesi yaseFlorida. “Ama-workshop kanye nemiboniso kuzobaluleka ekusizeni abalimi kuzo zonke izifunda ezahlukene ukuthi basebenzise lobu buchwepheshe.”
Ukuhlanganiswa kwezinzwa ze-chlorine ezihlala zicindezelekile kuvula ithuba lokuthuthuka okuqhubekayo ekuqapheni ikhwalithi yamanzi. Amaqembu ocwaningo asevele ehlola amathuba okuhlanganisa lezi zinzwa namanye amathuluzi okuqapha ezemvelo, njenge-pH, izinga lokushisa, kanye nezinzwa ze-ammonia, ukuze kudalwe izinhlelo zokuqapha ikhwalithi yamanzi eziphelele.
Njengoba imboni yezolimo zasemanzini ifuna ukulinganisela ukusebenza kahle kokukhiqiza nomthelela wezemvelo, ubuchwepheshe obufana nezinzwa ze-chlorine ezihlala zicindezelekile buqala ukuba yinto ebaluleke kakhulu. Ukubambisana phakathi kwabalimi, abacwaningi, kanye nabahlinzeki bezobuchwepheshe kuzoba yinto ebalulekile ekwakheni ikusasa lemikhuba yokufuya yasemanzini esimeme emhlabeni jikelele.
Emazweni afana nePeru ne-United States, lolu shintsho aluyona nje indaba yokuthuthukisa umkhiqizo kodwa futhi luwukuqinisekisa indlela yokuphila yezigidi zabantu abathembele ekulimeni kwezinhlanzi, ukuqinisekisa ukuthi bangachuma emakethe yomhlaba wonke ehlala ifuna njalo.
Ukuze uthole inzwa yekhwalithi yamanzi eyengeziweulwazi,
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Isikhathi sokuthunyelwe: Jan-09-2025