Significance and estimation of oxygen mass transfer coefficient in simulated waste stabilization pond

In this paper an effort has been made to theoretically estimation of overall oxygen mass transfer coefficient (KL) in field conditions by applying wind correction to the oxygen mass transfer coefficient (KLphy) estimated in a simulated pond in laboratory conditions using physical absorption method. The value of KLphy (8.44 × 10−6 m/s) was estimated experimentally by three well-mixed reactors of three different interfacial areas. Further, the value of KLphy was used to estimate the overall oxygen mass transfer coefficient (KL) in field conditions. The KL values in the field condition was estimated for waste stabilization ponds at sewage treatment plants of Kalyani and Bandipur in the state of West Bengal and were estimated to be 1.08 × 10−5 and 1.19 × 10−5, respectively. Study gives a handy approach of application of estimated overall oxygen mass transfer coefficient (KL) for rational design of waste stabilization ponds.