Search on: COD 
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Descriptor English:   Chemical Oxygen Demand 
Descriptor Spanish:   Demanda Química de Oxígeno 
Descriptor Portuguese:   Demanda Química de Oxigênio 
Synonyms English:   COD  
Tree Number:   SP4.016.152.678.159
SP4.016.172.928
SP4.026.247.458.009
Definition English:   Index of the oxygen comsumption capacity of the inorganic and organic matter that is present in water and wastewater. It is expressed as the amount of oxygen that a chemical oxidant consume in a specific test. It makes no difference between the instable or stable organic matter so it does not necessarily interfere the biochemical oxygen demand. 
See Related English:   Aeration
Dissolved Oxygen
Oxygen Consumption
Oxygen Level
Water Analysis
Water Chemical Characteristics
Water Pollution
 
Allowable Qualifiers English:  
AE adverse effects AN analysis
CL classification EC economics
ES ethics EH ethnology
HI history LJ legislation & jurisprudence
MT methods PL policies
PC prevention & control SN statistics & numerical data
Record Number:   25137 

Occurrence in VHL:
 

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