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Updated: Feb 22, 2026

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Patrones de respuesta asociados a la longitud de cadena de las parafinas cloradas en sistemas de lodos activados

Xiangfeng Kong¹, Yuxiong He², Jun Guo¹

¹Department of Environmental Science & Engineering, Fudan University, Shanghai 200238, China.

Journal of hazardous materials

|February 20, 2026

Resumen

Las parafinas cloradas (CPs) impactan el tratamiento de aguas residuales. Las CPs de cadena corta y media mejoraron la eliminación de fósforo y las funciones microbianas, mientras que las de cadena larga redujeron la eliminación de nitrógeno, lo que indica efectos dependientes de la longitud de la cadena.

Sus antecedentes:

Las parafinas cloradas (CPs) son contaminantes emergentes en las plantas de tratamiento de aguas residuales.
Sus efectos sobre los sistemas de lodos activados y la ecología microbiana no se comprenden bien.

Conclusiones:

Las CPs exhiben impactos dependientes de la longitud de la cadena en los procesos de tratamiento de aguas residuales y las comunidades microbianas.
La exposición a SCCP desencadenó un programa coordinado de respuesta al estrés que involucra bombas de eflujo, reparación de ADN y formación de biopelículas.
Los hallazgos informan la evaluación de riesgos y las estrategias de mitigación para las CPs en el tratamiento biológico de aguas residuales.

Palabras clave:

lodos activados longitud de cadena parafinas cloradas comunidad microbiana

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