4.2 Article

Water quality assessment of Loktak Lake, Northeast India using 2-D hydrodynamic modelling

期刊

SN APPLIED SCIENCES
卷 3, 期 4, 页码 -

出版社

SPRINGER INT PUBL AG
DOI: 10.1007/s42452-021-04440-8

关键词

Hydrodynamic model; Ecological model; MIKE 21; Loktak Lake; Northeast India

资金

  1. Loktak Development Authority, Government of Manipur (GoM)
  2. State Forest Department, GoM
  3. State Pollution Control board, GoM

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This paper applies a physically based 2D hydrodynamic model to simulate the transport phenomena and water quality of Loktak Lake, revealing deterioration primarily caused by pollutants from sub-catchments. The study successfully simulated dissolved oxygen and biochemical oxygen demand in the lake using MIKE 21 ECO Lab.
The paper comprises of an application of a multi-faceted physically based two-dimensional (2D) hydrodynamic model to simulate the transport phenomena of Loktak Lake, including the water quality of Loktak Lake, for which there is consensus that it is deteriorating due to river discharge from sub-catchments carrying sewage loads, soil sediments and agricultural fertilizers, and therefore, has emerged as a serious environmental concern. Accordingly, the study attempts to understand the overall environmental quality of the Loktak system and in particular simulate Loktak Lake water quality (state) variables by coupling through MIKE 21 ECO Lab. The model simulated dissolved oxygen and biochemical oxygen demand throughout the lake.

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