Pham Huu Ha Giang * , Le Gia Linh , Tran Duc Khanh , Vo Kim Ngan , Phan Thanh Ngoc Phuong , Nguyen My Phuong , Dien Thanh Binh and Ho Quoc Phong

* Corresponding author (

Main Article Content


During the rainy season, Can Tho city frequently faces severe flooding on its streets. In this study, the investigation is carried out on 30 streets and 10 canals nearby the streets in the center of Can Tho city. The results indicate that the surveyed manholes contain a lot of sludge with an average volume percent of 39.29%. In the food service areas, the average volume percent of sludge in manholes is found more than 70%. In the concentrated residential areas, the amount of sludge is less, but still at a relatively high rate (over 50%). In addition, the results show that the studied canals in the inner city are polluted due to waste directly from the drainage system. These issues have an effect on the drainage capacity of the roads. Some discussion on sand also shows that the sand shortage has reached an alarming level, which is the main factor leading to slow progress of some road projects. The sand reserves in the Mekong Delta region decrease sharply and the scarcity of sand causes sand prices to skyrocket, which is a difficult problem for this area. The development of mobile sludge treatment technology to produce a replacement material suitable for levelling and fertilizer purposes can be a potential topic for future research.

Keywords: Sludge, sand shortage, drainage system, pollution

Article Details


Ahmed, S. N., Anh, L. H., & Schneider, P. (2020). A DPSIR assessment on ecosystem services challenges in the Mekong Delta, Vietnam: Coping with the impacts of sand mining. Sustainability (Switzerland), 12(22), 1–29.

Hau Giang Department of Construction. (2023). Construction material prices 2023.

Do, T. L. (2020). Urban landscape planning adapting to flood in Can Tho city, Viet Nam. IOP Conference Series: Materials Science and Engineering, 869(2).

Ngoc, T. (2023). The highway is afraid of delays due to lack of sand. Thanh Nien News. (in Vietnamese).

Phong, H., & Hang, T. (2023). Current exploitation rate to deplete Mekong Delta sand within 10 years. Vnexpress International.

Phung, T., & Phu, Đ. (2023). The expressway project is likely to be behind schedule due to lack of sand. Tuoi Tre News.

Phuong, N. T. L., Yabar, H., & Mizunoya, T. (2021). Characterization and Analysis of Household Solid Waste Composition to Identify the Optimal Waste Management Method: A Case Study in Hanoi City, Vietnam. Earth (Switzerland), 2(4), 1046–1058.

Quan, N. V. (2019). Research on ecological lake solutions for minimizing flooding due to rain in new urban areas in the Mekong Delta. Journal of Water Resources and Environmental Engineering, 67, 46–53 (in Vietnamese).

Smith, K. M., Fowler, G. D., Pullket, S., & Graham, N. J. D. (2009). Sewage sludge-based adsorbents: A review of their production, properties and use in water treatment applications. Water Research, 43(10), 2569–2594.

Tuyen, D. (2023). Sand crisis in the Mekong Delta. Thanh Nien News. (in Vietnamese).

Werther, J., & Ogada, T. (1999). Sewage sludge combustion. Progress in Energy and Combustion Science, 25(1), 55–116.

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