Abstract
Phenolic derivatives are compounds that do not occur naturally in water. The presence of phenols in environment is due to human activity. These compounds have been detected in effluents from different industries, such as: petrochemical, pulp and paper, pharmaceutical, textile, coal mining, coke industry, etc. The Brazilian Law establishes the value of 0.5 mg/L as maximum concentration of these derivatives in water, however in some industries the concentration can reach 2000 mg/L. This manuscript reports the main techniques used for the removal of phenolic derivatives from industrial wastewater, such as: wet air oxidation, biological degradation, use of organic or inorganic adsorbents. Additionally, some aspects about the toxicity are presented.
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