The plan called for major cleanup of the lower river in order to protect salmon from phosphorus, nitrogen, and carbonaceous biochemical oxygen demand.
12.
Ethylene glycol and propylene glycol are known to exert high levels of biochemical oxygen demand ( BOD ) during degradation in surface waters.
13.
Plus the water had high concentration of COD and BOD ( chemical and biochemical oxygen demand ), ammonia, phosphate, chloride, chromium, arsenic and chlorpyrifos.
14.
Biochemical oxygen demand ( BOD ) indirectly measures the amount of easily biodegradable organic matters thus very low values indicate direct waste water disposal.
15.
Plus the water had high concentration of COD and BOD ( chemical and biochemical oxygen demand ), ammonia, phosphate, chloride, chromium, arsenic and chlorpyrifos pesticide.
16.
Sewage treatment plants can treat some industrial wastes, i . e . those consisting of conventional pollutants such as biochemical oxygen demand ( BOD ).
17.
The wastewater exiting the anaerobic digestion facility will typically have elevated levels of biochemical oxygen demand ( BOD ) and chemical oxygen demand ( COD ).
18.
Dissolved organic material is most commonly measured using either the Biochemical oxygen demand ( BOD ) test or the Chemical oxygen demand ( COD ) test.
19.
Scientists assess this aspect of water quality by measuring the water's biochemical oxygen demand, or the amount of needed to restore it to a normal concentration.
20.
It was also manufacturing a manometric apparatus that measured the biochemical oxygen demand ( BOD ) of sewage and industrial wastes in lakes, rivers, and streams.
