Understanding Saltwater Origins and Mechanisms in the Coastal Aquifers of Da Nang Area (Central Vietnam)

• Autorzy: Nguyen Thao Bach , Duc Nhan Dang , Dao Bang Duc

Identyfikatory

DOI

10.29227/IM-2023-02-42

Warianty tytułu

PL

Zrozumienie mechanizmów pochodzenia słonej wody w przybrzeżnych warstwach wodonośnych obszaru Da Nang (środkowy Wietnam)

• Konferencja: POL-VIET 2023 — the 7th International Conference POL-VIET
• Języki publikacji: EN

Abstrakty

EN

Saltwater intrusion in the rapidly developing city of Da Nang in central Vietnam is currently causing various water-related challenges, including inadequate water supply and water pollution. An integrated SWAT-MODFLOW numerical model was used to investigate the origin and mechanism of saltwater in Holocene and Pleistocene aquifers. Geophysical and isotopic approaches were used to validate the SEAWAT model applied for simulating saltwater intrusion. The results suggest that the ebb and flow of tides, as well as water levels in rivers primarily impact coastal aquifers. However, effective water resource planning and management, along with maintaining the natural recharge of fresh water from local rain during the rainy season, could enable the rational and efficient utilization of groundwater, reducing saltwater intrusion in many areas. During the dry season, groundwater is recharged from higher altitude areas. The current saltwater intrusion mainly occurs along the rivers up to the hydraulic dam. Simulated models, using scenarios of stop abstracting groundwater, but changing to the use of surface water for drinking water, show that the area of saline water shrinks quickly after 30 years, reducing from 59.6 km2 to 39.5 km2 and from 40.2 km2 to 28.6 km2 in the Holocene and Pleistocene, respectively.

Słowa kluczowe

EN

saltwater intrusion; groundwater modeling; sustainable groundwater development; coastal aquifers; surface water interaction,; water resource management

PL

wody podziemne; zarządzanie; Wietnam

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2023
• Tom: no. 2, vol. 1
• Strony: 281--288
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Nguyen Thao Bach

• Hanoi University of Mining and Geology (HUMG), 18 Vien str,. Bac Tu Liem, Hanoi, Vietna
• Research and Advanced Technology Applications in Environmental, Material and Earth Sciences Research Team, Hanoi University of Mining and Geology, Vietnam

autor

Duc Nhan Dang

• Institute for Nuclear Sciences and Technology, 179 Hoang Quoc Viet St., Ha Noi, Vietnam

autor

Dao Bang Duc

• Hanoi University of Mining and Geology (HUMG), 18 Vien str,. Bac Tu Liem, Hanoi, Vietnam

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu „Społeczna odpowiedzialność nauki” - moduł: Popularyzacja nauki i promocja sportu (2022-2023)