Numerical model for prevention of ctitical [i.e. critical] defficit [i.e. deficit] of dissolved oxygen in ponds | Numericki model prevencije kriticne kolicine rastvorenog kiseonika u sanitarnom bazenu
2008
Djordjevic, Dj.R., Gradjevinsko-arhitektonski fakultet, Nis (Serbia) | Antanasijevic, C.Lj., Gradjevinsko-arhitektonski fakultet, Nis (Serbia) | Miljojkovic, D., JP Srbija-vode, Beograd (Serbia)
One of the last stages in purification of waste water is by aquaculture pond using macro biological cells - fishes. In such outdoor ponds, oxygen depletion events can occur at anytime, but most likely to cause fish kills during summer hot weather. Aquaculture pond model can predict dissolved oxygen using small number of measurements and very simple numerical model. Alarm system can be activated urgently when the oxygen level drops below a certain concentration, depending on fish species. Such a model is realized for WWTP at Citluk coal mine, close to Sokobanja in Serbia, and explained in this paper.
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