The characteristics of wastewater vary depending on the source. The composition of wastewater wastewater treatment pdf free download widely. Both the BOD and COD tests are a measure of the relative oxygen-depletion effect of a waste contaminant. COD test measures the oxygen demand of oxidizable pollutants.
The result is that the oxygen content of the water will be decreased. There are numerous processes that can be used to clean up wastewaters depending on the type and extent of contamination. 20 percent of the homes in the U. Industrial wastewater effluent with neutralized pH from tailing runoff in Peru. There are several technologies used to treat wastewater for reuse.