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Treatment of Hard-to-degrade Wastewater
Hard-to-degrade wastewater often contains a variety of complex organic and inorganic compounds, such as aromatic compounds, heterocyclic compounds, and heavy metal ions. Some organic compounds, like phenols and anilines, are highly toxic. These characteristics result in poor biodegradability, meaning that traditional biological treatment methods struggle to effectively degrade the contaminants.
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The organic compounds in such wastewater have stable structures that are resistant to microbial breakdown. For example, wastewater containing halogenated organic compounds has increased chemical stability due to the presence of halogen atoms, making these compounds even more challenging to biologically degrade. This resistance necessitates the use of advanced treatment technologies beyond conventional biological methods to address the complexity and toxicity of the pollutants.
