Simulation on emergent water pollution accident in the water intake of Zhujiang Delta Water Resources Allocation Engineering

Many environmental risk factors exist around the water intake of Zhujiang Delta Water Resources Allocation Engineering. To effectively respond to sudden incidents of water pollution, EFDC model was used to simulate and analyze movement of main water quality elements of water intake. Hydrodynamic model of EFDC, NH₃-N model and oil spill model were constructed. Six incident scenarios of sudden water pollution were set up according to risk source around the water intake, simulated by NH₃-N model and oil spill model. Simulation revealed that sudden water environment incidents on the right bank of West River upstream of the water intake will not affect water intake, but sudden water environment incident on the left bank will have a major impact on water intake.