Dong, Yue; Sui, Mingrui; Jiang, Yiying; Wu, Jianyu; Wang, Xin published the artcile< Dibutyl phthalate weakens the role of electroactive biofilm as an efficient wastewater handler and related mechanism>, Reference of 492-62-6, the main research area is dibutyl phthalate electroactive biofilm wastewater handler related mechanism; Bacterial activity; Dibutyl phthalate exposure; Electroactive biofilm; Electron exchange capacity; Pollutant degradation.
Plasticizer plays an imperceptible role in interfering with the structure and function of wastewater biofilms, but the inherent influence mechanism still remains unknown. Here, the responses in electrochem., structural, microbial properties of electroactive biofilm (EAB) to plasticizer (di-Bu phthalate, DBP) were comprehensively elucidated, especially for the property variation of extracellular polymeric substances (EPS). The biofilm-0 in DBP-absent environment contributed to 22.9% and 63.9% higher current, compared to those in 1 mg/L and 10 mg/L DBP environment (biofilm-1 and biofilm-10). Chronic exposure to high-concentration DBP significantly boosted the content and distribution width of polysaccharide in EPS, but the electron exchange capacity of EPS decreased 76.6% to 0.146μmol e-/mg EPS for biofilm-10. The bacteria were subjected to metabolic function loss, in terms of esterase activity and membrane integrity, by using flow cytometry. The DBP exposure also imposed selective pressure on enrich EPS-secretion-related bacteria, while the Geobacter species decreased from 71.2% (biofilm-0) to 55.8% (biofilm-10). Consequently, the DBP exposure suppressed the pollutant degradation rate, which provided new insights into the EAB role as a promising core for wastewater treatment in plasticizer-existing environments.
Science of the Total Environment published new progress about Acinetobacter. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Reference of 492-62-6.
Referemce:
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Alcohols – Chemistry LibreTexts