Papahana DWASA no ka Paipu ʻana o CHUANGROGN ma Dhaka
Ka Moʻolelo o ka Papahana
ʻAʻole i kūlike ka hoʻomohala ʻana o nā ʻoihana kūlanakauhale ma Bangladesh me ka wikiwiki o ke kūlanakauhale. He mea paʻakikī loa ka hoʻolako ʻana i ka wai inu ma ke kapikala o Bangladesh ʻo Dhaka.
ʻO ka pahuhopu o ka Dhaka Water Supply Network Improvement Project (DWSNIP) ka hoʻomaikaʻi ʻana i ka hoʻolako ʻana i ka lako wai hoʻomau, hilinaʻi, a kūpaʻa i ke aniau ma ke kūlanakauhale ʻo Dhaka. E hoʻonui ia i nā loaʻa pono o ka pūnaewele hoʻolaha i loaʻa ma lalo o ʻelua mau papahana i kālā ʻia e ka Asian Development Bank (ADB) i ka Dhaka Water Supply and Sewerage Authority (DWASA) no ka hoʻomaikaʻi ʻana i ka hāʻawi ʻana i nā lawelawe a me ke kūkulu ʻana i ka hiki.
Nā hana kūkulu hale
ʻO nā hana kīwila ma ka papahana liʻiliʻi e pili ana i ke kau ʻana i nā paipu hoʻolako wai mai nā anawaena mai 75 mm a 400 mm.
ʻOi aku ka lōʻihi o ke ola o nā paipu HDPE, ka lōʻihi o ke ola, a me ke kūpaʻa i ka māwae koʻikoʻi a kokoke i ka pale ʻia i ka hapa nui o nā mea haumia kemika a me nā mea olaola. ʻO ke ʻano o ka paipu, ʻoi aku ka liʻiliʻi o ka mālama ʻana ma mua o nā mea paipu ʻē aʻe a me ka hōʻoia ʻana i ka hiki ke kahe nui i loko o kona ola lawelawe.
ʻO ka hopena ʻōnaehana ChuangRong i komo pū me nā paipu, nā mea hoʻohui electrofusion, nā mīkini electrofusion, ke kākoʻo ʻenekinia, nā mea hana hoʻonohonoho kūikawā, a me ke aʻo ʻana.
ʻO kēia mau hana e komo pū me ka ʻeli ʻana i nā paipu ma nā alanui, ke kau ʻana i nā paipu i loko o ka ʻauwaha, ka hui ʻana, ka hoʻāʻo ʻana i ka wai a me ka hoʻopiha hou ʻana me ka lepo i ʻeli ʻia. ʻO ke Alanui Nui ʻo Dholaikhal, ke Alanui Nui ʻo Begum Gonj Lane, ke Alanui Nui ʻo Doyagong, ke Alanui Nui ʻo Kaptan Bazar a i Gulistan, ke Alanui Nui ʻo Wari, ke alanui ʻo Bahadur shahpark, ke alanui hou ʻo Gendaria, ke Alanui ʻo Shahid Faruk a pēlā aku nā alanui nui (ākea > 4m) ma ka ʻāpana papahana liʻiliʻi. ʻO nā alanui kūloko koʻikoʻi ʻē aʻe (ākea 2-4 m).
