Koili y'icyuma ya PPGIni icyuma gikozwe mu cyuma gitwikiriwe n'urutonde rw'ibicuruzwa bya organic, kubera ubushobozi bwacyo bwiza bwo kurwanya ingese, kwihanganira ikirere n'isura nziza, gikoreshwa cyane mu bwubatsi, ibikoresho byo mu rugo, imodoka n'izindi nganda. Amateka y'imizingo itwikiriwe n'amabara yatangiye mu ntangiriro z'ikinyejana cya 20 kandi yari yaragenewe gukemura ikibazo cy'ingese cy'ibyuma bitwikiriwe n'amabati mu bidukikije bitose. Kubera ko ikoranabuhanga ryo gukoresha galvanizing rimaze gukura, icyuma gitwikiriwe n'amabati cyakoreshejwe cyane ku isoko.
Mu myaka ya za 1960, igitekerezo cyaimizingo ipfutse amabarabyatangiye kugaragara, kandi abakora ibikoresho bakoresheje ikoranabuhanga ryo gusiga kugira ngo bongere amabara n'uburyo bwo kurinda ibyuma bya galvanised, bihaza ibyifuzo bibiri by'isoko ku bwiza no kuramba. Muri iki gihe, irangi ry'ingenzi rikoreshwa ahanini ni irangi rishingiye kuri peteroli, nubwo rifite inyungu zimwe na zimwe mu mikorere, ariko kurengera ibidukikije n'umutekano biracyakeneye kunozwa.
Mu myaka ya 1970 na 1980, bitewe n’iterambere ry’ikoranabuhanga rya sintetike n’iry’isukari, uburyo bwo gukora PPGI bwakomeje kunozwa, uburyo bwo gufatana, kurwanya ingese no kurwanya ikirere byarushijeho kwiyongera, kandi amabara n’imiterere bitandukanye by’isukari byagaragaye ku isoko kugira ngo bihuze n’ibyo abakiriya batandukanye bakeneye. Muri icyo gihe, PPGI yatangiye gukoreshwa cyane murikubaka ibisenge n'inkuta, ikaba igice cy'ingenzi cy'ubwubatsi bwa none.
Nyuma yo kwinjira mu kinyejana cya 21, guteza imbere ubukangurambaga ku bidukikije ku isi byatumye inganda zikora amarangi zitera imbere mu rwego rwo kurengera icyatsi n'ibidukikije. Inganda nyinshi zirimo gutangira gukoresha irangi rishingiye ku mazi n'irangi ridafite umwimerere kugira ngo zigabanye ingaruka zaryo ku bidukikije. Iyi mpinduka ntiyongera gusa umutekano wa PPGI, ahubwo inatuma irushaho gupiganwa ku isoko. Muri iki gihe, urwego rwo gukoresha PPGI rwarushijeho kwaguka kugira ngo rugere ku nganda nyinshi nk'ibikoresho byo mu rugo n'imbere mu modoka, bigaragaza ko ari nziza mu gutandukanya no guhuza ibintu.
Bitewe n’iterambere rikomeje mu bumenyi n’ikoranabuhanga, amahirwe y’iterambere ry’ejo hazaza rya PPGI ni manini. Kwinjizwa kw’ibikoresho bishya n’ikoranabuhanga bizatuma PPGI igera ku musaruro mwiza no ku iterambere ritangiza ibidukikije. Bitewe n’uko hakomeje gushyirwa imbaraga mu nyubako zirambye no gushushanya ibidukikije, PPGI byitezwe ko izagira uruhare runini muri izi nzego.
Muri make,Imizingo ipfutse amabara ya PPGIByabaye ibikoresho by'ingenzi mu nganda za none kubera imiterere yabyo myiza n'isura nziza. Bitewe n'iterambere rihoraho ry'ikoranabuhanga n'impinduka mu gukenerwa kw'isoko, ikoreshwa rya PPGI rizakomeza kwaguka, rizana amahirwe menshi mu nzego zose z'ubuzima.
ITSINDA RY'UBUFARANSA
Aderesi
Agace k'inganda ziteza imbere Kangsheng,
Intara ya Wuqing, umujyi wa Tianjin, Ubushinwa.
Amasaha
Kuwa mbere-Ku cyumweru: Serivisi y'amasaha 24
Igihe cyo kohereza: Ukwakira-12-2024