Impamvu Imijyi yo ku nkombe ihitamo imiyoboro y'amazi ikoreshwa mu byuma bicukurwa

Mu mijyi yo ku nkombe z'inyanja no mu turere dufite ubushuhe bwinshi, kuramba kw'imiyoboro y'amazi bifitanye isano itaziguye n'amafaranga y'umutekano n'imikorere n'imicungire y'ibikorwa remezo by'imijyi. Imijyi isanzwe yo ku nkombe z'inyanja nka Hong Kong na Singapuru ihura n'isuri iterwa n'umwuka mwinshi w'umunyu n'ikirere gishyushye umwaka wose. Imiyoboro gakondo y'amazi ikoreshwa mu byuma ikunze kumena amazi no kwangirika bitewe n'ingese, ndetse ikanatera umwanda w'ibidukikije n'akaga gahishe mu nyubako. Mu rwego rwo guhangana n'iki kibazo,DINSENyatangije umusaruro w’impinduramatwara - imiyoboro y’amazi ikoreshwa mu byuma bikozwe mu buryo bwa zinc, ivugurura ibisubizo by’inganda hakoreshejwe uburyo bushya n’imikorere myiza.

Ibidukikije byo ku nkombe byangiza cyane imiyoboro y'icyuma kurusha uturere two mu gihugu imbere. Iyoni za kloride ziri mu ifuro ry'umunyu zihurira n'ubushuhe buri mu kirere kugira ngo zihutishe ogisijeni y'icyuma, bigatuma urwego rwa zinc ruri ku buso bw'imiyoboro gakondo ya galvanize rugwa vuba, amaherezo bigatera kwangirika k'umubiri w'imiyoboro. Byongeye kandi, impinduka zikunze kubaho z'ubushyuhe n'imirasire ya ultraviolet nabyo byongera gusaza kw'igitambaro. Ikoranabuhanga gakondo ryo kurwanya kwangirika (nk'imashini isanzwe yo gusiga galvani cyangwa gusiga amarangi) biragoye kubungabunga ingaruka z'igihe kirekire zo kurinda mu kirere kigoye. Gusimbuza imiyoboro kenshi ntibyongera ibiciro gusa, ahubwo binagira ingaruka ku mikorere isanzwe y'umujyi.

Igihe cyo kurwanya ingese cya zinc ishyushye kiri hejuru y’inshuro 4-10 ugereranyije n’icyuma kitavuwe.Itandukaniro ryihariye riterwa n'urwego rw'ibidukikije n'amahame ngenderwaho y'imikorere. Mu miterere isanzwe y'ubwubatsi, zinc ishyushye ishobora gutanga uburinzi bw'igihe kirekire mu gihe kirenga imyaka 20, mu gihe icyuma kitavuwe gishobora kumara imyaka 3-5 gusa munsi y'ibidukikije bimwe. Ishusho ikurikira ni igereranya ry'imiyoboro y'icyuma ivanze na zinc n'itavanze na zinc. Uruhande rw'ibumoso ni umuyoboro w'icyuma uvanze na zinc (DN50 EN877:2021 A1 Z), naho uruhande rw'iburyo ni umuyoboro usanzwe w'icyuma.

Imikorere yo kurwanya ingese muri ubu buryo yatsinze ibizamini bikomeye by’urwego rwa EN877 (harimoikizamini cyo gusukura umunyu, ikizamini cyo kwangirika kw'ingufu, nibindi).EN877 ni igipimo cyemewe cyo kwemeza imiyoboro y'amazi ikoreshwa mu byuma bishongeshejwe mu Burayi, gishyiraho ibisabwa ku miterere ya mekanike, gufunga no kurwanya ingese by'imiyoboro.Imiyoboro y'icyuma ya DINSEN ifashishijwe zinki ikwiriye inyubako ndende, inzira z'imiyoboro yo munsi y'ubutaka n'ahandi hantu hagoye kubaka kenshi.Bubahiriza byimazeyo amahame ya EN877 kandi bakunzwe n'abakiriya bo ku rwego rwo hejuru kubera ibyiza byabo byo kurwanya ingese.

Muri iki gihe, iki gicuruzwa cyakoreshejwe neza mu nyubako nyinshi z’ingenzi muri Hong Kong (nk’inyubako z’ubucuruzi n’imishinga yo kwagura ibibuga by’indege), kandi cyagiye gishyirwa mu bikorwa buhoro buhoro mu turere two ku nkombe nko muri Aziya y’Amajyepfo y’Uburasirazuba no mu Burasirazuba bwo Hagati. Agaciro kacyo ntikagaragarira gusa mu mikorere yacyo ya tekiniki, ahubwo kanagaragarira no mu mikorere yacyo ya tekiniki.ikundwa n'abakiriya binyuze mu nyungu zayo zose ku giciro - nubwo ishoramari rya mbere riri hejuru gato ugereranyije n'iry'imiyoboro isanzwe, imiterere yayo y'igihe kirekire idakoreshwa mu kubungabunga ishobora kugabanya ikiguzi rusange ho hejuru ya 30%.

Mu gihe cy’ingufu ebyiri z’izamuka ry’imijyi n’imihindagurikire y’ikirere, “umurongo utagaragara w’uburinzi” bw’ibikorwa remezo ugomba kuvugururwa byihutirwa. Hamwe n’ikoranabuhanga rishya rirwanya ingese hamwe n’icyemezo cyo ku rwego rwo hejuru, imiyoboro ya DINSEN iterwa na zinc itanga ibisubizo byizewe kandi birambye ku mijyi yo ku nkombe z’inyanja. Mu gihe kizaza, uko ibyifuzo by’imijyi ikomeye ku isi bikomeza kwiyongera, iri koranabuhanga rishobora kongera gusobanura ibipimo ngenderwaho by’inganda no guteza imbere ihinduka ry’imiyoboro y’icyuma iva ku “bice bikora” ikajya ku “bice by’agaciro”.

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