Izi zikusonyeza kuti kuchuluka kwa chilala ndi kusefukira kwa madzi kudzapitirira kukwera mogwirizana ndi kutentha kwapakati, motero kuyika anthu mamiliyoni mazana ambiri pangozi chifukwa cha kusowa kwa madzi abwino.Mizinda ngati Cape Town ikumva kale mphamvu ya izi.
2018 imayenera kukhala tsiku lomwe Cape Town idazimitsa matepi ake, tsiku loyamba la Zero padziko lonse lapansi.Anthu okhala m'derali adayang'anizana ndi chiyembekezo choima pamzere kwa maola ambiri pamalopo kuti alandire chakudya chawo chochepa cha malita 25 patsiku, popeza kuti anthu saloledwa kupeza madzi chifukwa cha chilala chambiri.Mizinda ina yayikulu mizinda yambiri imadziwika kuti ikuyandikira zero m'zaka zikubwerazi
Komabe, asayansi ndi ofufuza akuyesetsa kupeza njira zosiyanasiyana zopangira madzi abwino kuchokera kumagulu ang'onoang'ono kupita kuzinthu zamalonda ndi mafakitale.Makina omwe amagwiritsidwa ntchito kwambiri pochotsa mchere m'madzi tsopano, ndi malo ochotsa mchere komanso ma membrane.Makina otentha amagwiritsa ntchito kutentha.Ngakhale makina otenthetsera moto ndi okwera mtengo kwambiri ndipo amafunikira magetsi okwera mtengo, njira iyi yasintha kwambiri padziko lonse lapansi popanga madzi abwino.Mamembrane system, kumbali ina, safuna njira zambiri zovuta.Pogwiritsira ntchito kupanikizika ndi mtundu wapadera wa nembanemba wokhala ndi pepala lodutsamo lomwe limalola madzi abwino kudutsamo.Mwanjira iyi, madzi opanda mchere amapangidwa mofulumira kwambiri.
Mizinda padziko lonse lapansi ikuvutika ndi kusowa kwa madzi.Kusintha kwanyengo kumabweretsa kutentha kwapakati komanso nyengo yowuma.Kufunika kwa zinthuzi kumawonjezeka, koma kuchedwa kapena kusakhalapo kwa mvula kumachepetsa kupezeka, motero kumabweretsa mavuto aakulu pa chuma.Kusowa kwa madzi abwino kumeneku m'mizinda kumayika pachiwopsezo chofikira Day Zero.Day Zero kwenikweni ndi nthawi yomwe tawuni kapena dera lamzinda silingathe kupereka malo okhalamo ndi madzi abwino.Kuzungulira kwa hydrologic kumagwirizana kwambiri ndi kusintha kwa kutentha kwa mumlengalenga ndi kutentha kwa ma radiation, kutanthauza kuti nyengo yotentha imapangitsa kuti madzi asamasefuke komanso kumawonjezera mpweya wamadzimadzi.
At ZOBISANA, ndife onyadira kukhala m'modzi mwa makampani otsogola omwe akuyesetsa kuthana ndi chizindikiro cha Day Zero kumadera ambiri padziko lapansi omwe ali pachiwopsezo cha kusowa kwa madzi.Gulu lathu lochita kafukufuku likuyesetsa kupanga ma membrane apamwamba kwambiri omwe amafunikira mphamvu zochepa kuti akolole madzi akumwa abwino.Timalimbikitsa dziko kuti lisunge kwambiri gwero lamtengo wapatali ndikugwirana manja ndikulimbana ndi Day Zero padziko lonse lapansi.
Nthawi yotumiza: Aug-19-2021