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Aqueous film‐forming foams (AFFFs) are an important for fire extinguishing, and their key ingredient is fluorinated surfactant. In recent years, traditional long‐chain fluorinated surfactants have been banned by most countries because of their persistence, bio‐accumulation and toxicity....
This study investigated surfactant levels in the sediment of Itanhaém Estuary through colorimetric methods with methylene blue active substances (MBAS). Samples were collected with a Van Veen bottom sampler at eight sampling points during autumn, winter, and spring of 2015. The results...
In this research, benzene, a toxic compound encountered in industrial wastewater, was extracted using a mixture of saponin and sodium dodecyl sulfate (SDS) as anionic surfactants. Also, a biosensor system for assessment of toxicity and detection of extracted benzene was designed using the Luc...
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