Japan, pamusoro pekuve nyika inomiririrwa nesainzi yemazuva ano, inyika ine zvinodiwa zvakanyanya zvehunyanzvi mumunda wehupenyu hwepamba. Tichitora munda wemvura yekunwa wezuva nezuva semuenzaniso, Japan yakatanga kushandisamapaipi esimbi isina ngurasemapaipi emvura emumaguta muna 1982. Nhasi uno, huwandu hwemapaipi emvura esimbi isina ngura anoshandiswa muTokyo, Japan hwakwira kusvika pa95%.
Sei Japan ichishandisa mapaipi esimbi isingatsvi zvakanyanya mukufambisa mvura yekunwa?
Pamberi pa1955, mapaipi emagetsi aishandiswa zvakanyanya mumapaipi emvura yepombi muTokyo, Japan. Kubva muna 1955 kusvika 1980, mapaipi epurasitiki nemapaipi esimbi-purasitiki aishandiswa zvakanyanya. Kunyangwe matambudziko emhando yemvura nematambudziko ekubuda kwemvura mumapaipi emagetsi akagadziriswa zvishoma, kubuda kwemvura muTokyo kuchiri kwakakomba, nekubuda kwemvura kwakasvika 40%-45% isingagamuchirwi muma1970.
Tokyo Water Supply Bureau yave ichiita tsvakiridzo yakakura pamusoro pematambudziko ekubuda kwemvura kwemakore anopfuura gumi. Sekureva kweongororo, 60.2% yekubuda kwemvura kunokonzerwa nekusasimba kwakakwana kwezvinhu zvepaipi yemvura uye simba rekunze, uye 24.5% yekubuda kwemvura kunokonzerwa nekugadzirwa kusina musoro kwemajoini epaipi. 8.0% yekubuda kwemvura kunokonzerwa nekugadzirwa kwenzira yepaipi zvisina musoro nekuda kwekuwedzera kwakanyanya kwemapurasitiki.
Nechinangwa ichi, Japan Waterworks Association inokurudzira kuvandudza zvinhu zvemapombi emvura uye nzira dzekubatanidza. Kubva muna Chivabvu 1980, mapaipi ese emvura ane dhayamita isingasviki 50 mm kubva pamutsetse mukuru wemvura unobatsira kusvika pamita yemvura anoshandisa mapaipi emvura esimbi isina ngura, majoini emapaipi, magokora nemapombi.
Zvichienderana nehuwandu hweTokyo Water Supply Department, sezvo huwandu hwekushandiswa kwesimbi isina ngura hwakawedzera kubva pa11% muna 1982 kusvika pa90% muna 2000, huwandu hwemvura inodonhedza hukadzikirawo kubva pa50,000 pagore mukupera kwema1970 kusvika pa2-3 muna 2000. , yakagadzirisa dambudziko remapombi emvura yekunwa anodonhedza vagari.
Nhasi uno muTokyo, Japan, mapaipi emvura esimbi isina ngura akaiswa munzvimbo dzese dzekugara, izvo zvakavandudza zvikuru kunaka kwemvura uye zvakawedzera kudzivirira kudengenyeka kwenyika. Kubva pakushandiswa kwemapaipi emvura esimbi isina ngura muJapan, tinogona kuona kuti zvakanakira mapaipi emvura esimbi isina ngura maererano nekuchengetedzwa kwezvakatipoteredza, kuchengetedza zviwanikwa, uye hutano nehutsanana hazvipokanwe.
Munyika medu, mapaipi esimbi isina ngura ainyanya kushandiswa muindasitiri yemauto. Mushure memakore anoda kusvika makumi matatu ekuvandudzwa, tekinoroji yezvigadzirwa yakavandudzika zvikuru, uye yakapinda zvishoma nezvishoma mubasa rekutakura mvura yekunwa, uye yave ichikurudzirwa zvikuru nehurumende. Musi wa15 Chivabvu 2017, Ministry of Housing and Urban-Rural Development yeChina yakaburitsa "Direct Drinking Water Pipeline for Buildings and Residential Areas" System Technical Regulations", iyo inotaura kuti mapaipi anofanira kugadzirwa nemapaipi esimbi isina ngura emhando yepamusoro. Pasi pechimiro ichi, China yakabereka boka revamiriri vemakambani ehurumende nemakambani akazvimirira ane hunyanzvi hwepamusoro hwetekinoroji.
Nguva yekutumira: Kurume-21-2024