E. Determination method
Dissolve Oxygen (DO) was determined with Azide
modification of Iodometric method using a BOD bottles and
Manganese Sulfate and Alkali-iodide-azide [14]. Biological
Oxygen Demand (BOD) was determined by Dilution method.
[15]. Chemical Oxygen Demand (COD) was determined by
spectrophotometric method [16]