Estimation of BOD520 discharged from tra catfish cultivation in AnGiang

Abstract

Tra catfish cultivation in Mekong delta does not only bring benefits to farmers but also causes an important pollution source for surface water bodies. By experiments, the rate of BOD₅²⁰ load discharged from deposited feeds in excess and excrement of tra catfish occurred during its cultivation in An Giang was estimated. It was defined that 488.29g of BOD₅²⁰ will be emitted to produce one kilogram of tra catfish.