2.7 Analysis of Samples
2.7.1 Temperature
Temperature was measured from both untreated inlet and treated outlet sampling points by
simple thermometer.
2.7.2 pH
pH of effluent was determined by using pH meter by glass electrode method.
2.7.3 Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD)
BOD and COD were measured by standard methods.
2.8 Statistical analysis
The physical and chemical parameters measured for the inlet and outlet points were
compared statistically using paired t test.