Biochemical Oxygen Demand Experiment

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Laboratory Testing
Biochemical oxygen demand (BOD5). A measure of organic materials concentration in the wastewater that can be oxidized by the bacteria and normally determined on the 5th day at 20˚C through the amount of oxygen consumed. In this study, the procedure referred is APHA-5210 B.

Chemical oxygen demand (COD). This test is used to quantify the amount of oxidizable pollutants found in water, technically a measure of the water sample going through oxidation and reduction reaction. The analysis is done using Hach method.

Total suspended solids (TSS). To determine the amount of suspended and insoluble organic particles in the sample as a measure of the turbidity of the water. For this test, the procedure referred is APHA-2540 B.

Ammoniacal nitrogen (AN). A determination of ammonia
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