Lake restoration
As part of the permitting design for the new Cuervo Reservoir (13,149 ha) in Patagonia, Polyplan performed water quality forecasting calculations. To predict the influence of the over-vegetated areas on future development, a 3-dimensional fluid model (@sea) was used to record the total future basin volume of 11.5 billion m³, as well as inflows from the discharging rivers, hypodermic inflows, and discharge.
The model was used to model flow velocities, particle transport, oxygen development, and concentration development of phosphorus (P), nitrogen (N) and carbon (C) in various case studies. Based on the N/P/C ratio within the elements, the corresponding expected concentrations were calculated. Based on the results, the water management necessary for safe operation was developed and implemented in the model. The water management system consists of hypolimnic aeration systems and destratification systems with periodic implementation of flocculating agents. The facilities are controlled via an online measuring system, for which the parameters and positions for the online measuring points were defined. The online measurement system represents the central function of future water management.
