STUDY ON CARRYING CAPACITY OF THE TRUONG GIANG RIVER, QUANG NAM PROVINCE

  • Mai Trong Hoang, Tran Van Thuy, Nguyen Dang Giap, Nguyen Le Tuan
Từ khóa: Carrying capacity, pollutants, Truong Giang River, Quang Nam province.

Tóm tắt

The paper presents the study on environmental carrying capacity of Truong Giang River, Quang Nam province for BOD and NH4+, in the dry season (from April to June) and rainy season (from October to December) in 2017. The study used MIKE 21 model to simulate water quality and assess the carrying capacity of Truong Giang River by three different scenarios. Results show that, for the Scenario 1, all 4 river-sections of Truong Giang River were no longer able to withstand the load of BOD and NH4+. In particular, the section I had the best carrying capacity, followed by the section IV and section III, and the lowest one was the section II. For the Scenario 2, all 4 river-sections were still capable of receiving pollutants, except for BOD in section II and III in the rainy season. For the Scenario 3 with a warning meaning, in order to meet the minimum requirements of water quality to ensure the functions of the water source, it is necessary to limit the amount of pollution load discharged into the river by 1.94 times of BOD and 2.45 times of NH4+ compared to its of the year 2017. This result lays the foundation for further research on solutions to increase self-purification ability and improve water quality in the Truong Giang 

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Phát hành ngày
2021-05-25