ABSTRACT
The pH is checked before the actual testing analysis. Table 14.1 shows the common pollutants of the textile effluents.
Table 14.2 shows the list of some organic pollutants.
Biochemical oxygen demand is the rate at which organisms use the oxygen in water while stabilising decomposable organic matter under aerobic conditions. It is used as a measure of the organic strength of wastes in water and is actually a measure of the environmental impact of chemical pollution. When organic matter (pollutants in wastewater) is plentiful, micro-organisms may grow so rapidly that they deplete the dissolved oxygen to the extent that levels can be harmfully low for fish and aquatic life.
