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CALCULATE

CALCULATE

**Dissolved oxygen deficit calculator** - formula & step by step calculation to measure how dissolved oxygen decreases in a stream or river due to degradation of biochemical oxygen demand (BOD), based on Streeter-Phelps water quality modelling equation. D = {(k_{1}L_{0}/k_{2} - k_{1}) [exp^{-k1t} - exp^{-k2t}] + D_{0} exp^{-k2t}}. Deoxygenation rate constant k_{1} in base e days_{-1}, initial BOD ultimate in mixing zone L_{0} in mg/L, reaeration rate k_{2} in base e days_{-1}, time t in days & initial dissolved oxygen deficit in mixing zone D_{0} in mg/L are the key elements of this calculation.

Formula for Dissolved Oxygen Deficit

In environmental engineering, the below equation is used to measure dissolved oxygen decreases in a stream or river due to degradation of biochemical oxygen demand (BOD). This calculator provides step by step calculation for each set of inputs let users to understand how to perform such stream or water quality modelling calculations manually for environmental impact analysis

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