Ntchito Yoteteza Madzi ku Nyanja ya Liangshan Yi Autonomous Prefecture

Malo a polojekiti:

Liangshan Yi Autonomous Prefecture, Sichuan, China

Mbiri ya polojekiti:

Dongosolo loyambirira loletsa madzi kulowa m'nyanja yokongola m'dera la malo opumulirako lalephera, zomwe zapangitsa kuti madzi a m'nyanja atuluke kwambiri ndipo zakhudza malo ozungulira chilengedwe komanso zomwe alendo akukumana nazo. Ntchitoyi ili m'dera lamapiri lomwe kuli mafuko a Yi omwe ali ndi zofunikira zoteteza chilengedwe. Ntchito yomangayo iyenera kukhala yopanda kuipitsa chilengedwe komanso yopanda kuwononga chilengedwe chozungulira. Kupatula apo, iyenera kugwirizana ndi malo achilengedwe a malo opumulirako.

Yankho la polojekiti:

Geomembrane ya Zhonglong yophatikizika (geomembrane ya HDPE + kapangidwe ka geotextile kosakhala kolukidwa)

Geomembrane yathu yophatikizika imapangidwa ndi gawo lotsika la geomembrane ya polyethylene (HDPE) yokhala ndi kuchuluka kwakukulu (makulidwe ≥1.5mm) ndi gawo lapamwamba la polyester filament non-woven geotextile. Geomembrane ya HDPE imapanga gawo lodalirika losalowa madzi ndipo gawo la geotextile limateteza zinthu za geomembrane kuti zisawonongeke ndi zinthu zobwerera m'mbuyo ndikuwonjezera mphamvu ya dongosolo lolimbana ndi kusintha kwa zinthu.

Kumanga pulojekiti:

Gulu la zomangamanga la Zhonglong nthawi zonse limatsatira njira yokhazikika yoyika geomembrane yophatikizika:

Gawo 1: Limbitsani pansi pa malo omangira, kuonetsetsa kuti palibe mchenga, miyala, zinthu zakuthwa kapena zinyalala zina zomwe zimawonekera.

Gawo 2: Malinga ndi zofunikira pakupanga geomembrane yophatikizika, yalani mipukutu motsatizana ndikusunga zida zowotcherera (onaninso ngati pamwamba pake pali posalala).

Gawo 3: Tsukani malo olumikizirana, kenako sungunulani pang'onopang'ono kudzera mu makina olumikizirana amitundu iwiri.

Gawo 4: Chitani kuzindikira kuthamanga kwa mpweya, sungani malo a chipangizocho kukhala olimba mkati mwa kuchuluka kwa kuthamanga kwa mpweya komwe kukufunika popanda kutayikira.

Gawo 5: Pa nthawi yolandira, onetsetsani kuti ntchito yonse yalembedwa dzina la wogwiritsa ntchito, tsiku ndi zina zofunika, ndipo tsimikizirani kuti ntchito yonse yomanga yatha.

Tsatanetsatane wa zomangamanga zomwe zasinthidwa kuti zigwirizane ndi momwe zinthu zilili m'deralo:

1. Pa dera la nyanja, njira yonseyi ilibe zomatira za mankhwala, zomwe zimathandiza kuti madzi aipitsidwe.
2. Kuti alendo azitha kuona bwino malo obisika, kugwiritsa ntchito njira yobisika yokonzera malo obisika—ngalande ya ngalandeyo imapewa malo owoneka ndi alendo, odzaza ndi miyala yachilengedwe komanso osakanikirana ndi malo ozungulira.
3. Pa miyezo yovomerezeka, kuchuluka kwa madzi m'nyanja kuyenera kutsika ≤1mm mkati mwa maola 24, ndipo kuwonekera bwino kwa madzi kuyenera kukhalabe ndi NTU≤5.

Mapeto a polojekiti:

Malinga ndi dongosololi, nyanjayi idzakhala ndi madzi okwanira chaka chonse ndipo kubwezeretsanso madzi pachaka kudzachepetsedwa ndi matani opitilira 100,000, zomwe zidzasintha kwambiri chilengedwe cha nyanjayi.