

Human: Is Phenol in the list of the aromatics that are the exception in the Chemical Oxygen Demand?

Assistant: Yes Phenol (known as carbolic acid) is indeed included in the list of non-aromatic organic compounds that are not included in the Chemical Oxygen Demand test for drinking water quality.  The full list of exceptions includes: Phenol (Carbolic Acid), Ammonia, Formic Acid, Formaldehyde, Glutaraldehyde, Hydrogen Sulfide, Hydrogen Chloride, Hydrogen Peroxide, Nitrite (Zero Parts Per Million), Nitrate (less than 10 Parts Per Million), Nitric Oxide (Zero Parts Per Billion), Perchlorate (less than 2 Parts Per Million), Sulfate (less than 500 Parts Per Million), and Perfluorochemicals.


Human: Is Phenol in the list of the aromatics that are the exception in the Chemical Oxygen Demand?

Assistant: There are many aromatic and aliphatic compounds that are common contaminants in aqueous effluent and produce high Chemical Oxygen Demand (COD), so these substances are of particular concern in biotech effluents. Phenol has low solubility in water, so does not significantly contribute to total COD, but exists as an important water contaminant and is listed in the gene-environment model as a toxin. Some examples of other aromatics are nitrophenols, chlorophenols, phenolic compounds, furans, benzenes, toxic phenylacetic compounds, and aromatic pesticides.
Is Phenol in the list of the aromatics that are the exception in the Chemical Oxygen Demand?
Yes Phenol (known as carbolic acid) is indeed included in the list of non-aromatic organic compounds that are not included in the Chemical Oxygen Demand test for drinking water quality.  The full list of exceptions includes: Phenol (Carbolic Acid), Ammonia, Formic Acid, Formaldehyde, Glutaraldehyde, Hydrogen Sulfide, Hydrogen Chloride, Hydrogen Peroxide, Nitrite (Zero Parts Per Million), Nitrate (less than 10 Parts Per Million), Nitric Oxide (Zero Parts Per Billion), Perchlorate (less than 2 Parts Per Million), Sulfate (less than 500 Parts Per Million), and Perfluorochemicals.
There are many aromatic and aliphatic compounds that are common contaminants in aqueous effluent and produce high Chemical Oxygen Demand (COD), so these substances are of particular concern in biotech effluents. Phenol has low solubility in water, so does not significantly contribute to total COD, but exists as an important water contaminant and is listed in the gene-environment model as a toxin. Some examples of other aromatics are nitrophenols, chlorophenols, phenolic compounds, furans, benzenes, toxic phenylacetic compounds, and aromatic pesticides.