One-step process for debromination and aerobic mineralization of tetrabromobisphenol-A by a novel Ochrobactrum sp. T isolated from an e-waste recycling site

Kinetics of tetrabromobisphenol A (TBBPA) reactions with H2SO4, HNO3 and HCl: Implication for hydrometallurgy of electronic wastes

“…Product 5 was tentatively identified as 4-(2-hydroxyisopropyl)-2,6-dibromophenol due to lack of authentic standards. Product 6 was tentatively identified as tribromobisphenol A, because it had a similar mass spectrum with that of silylated tribromobisphenol A reported by An et al [23] (Fig. S3).…”

Emission patterns and risk assessment of polybrominated diphenyl ethers and bromophenols in water and sediments from the Beijiang River, South China

“…This might be one reason for low levels of TBBPA generally detected in the environment in comparison with PBDEs, which are additive flame retardants and blended with polymers. The degradation of TBBPA to other metabolites, such as 2,4-DBP, TBP and BPA, under aerobic or anaerobic conditions may be another possible factor affecting their concentrations (An et al, 2011b;Liu et al, 2013). The effluents of sewage treatment plants, municipal incinerators and factory flues of this surveyed region are also possible sources of TBBPA.…”

“…Ion fragments m/z 329.7 and 331.8 were monitored for TBP, m/z 335.7 and 337.8 for 13 C-TBP, m/z 607 and 609 for TBBPA, and m/z 619 and 621 for 13 C-TBBPA. The analysis of the derivatized BPA was performed according to our previous study (An et al, 2011b). Ion fragments m/z 357.2 and 372.2 were monitored for BPA, and m/z 369.2 and 384.2 for 13 C-BPA.…”

“…Therefore, the concentrations of BPA in water were slightly higher than those of TBBPA. In addition, the degradation of TBBPA by microbes may be another possible source of BPA (An et al, 2011b;Liu et al, 2013), and BPA may also be adsorbed onto sediments (K oc 314 to 1524) (Staples et al, 1998). Besides these two reasons, BPA is also widely used as an intermediate in the production of polycarbonate and epoxy resins, flame retardants, and other specialty products, and wastes created during the use of these products release considerable BPA, which may also be an important source of BPA.…”

“…TBP may also be formed as a byproduct of TBBPA, either in its photo-oxidation, chemical oxidation and biodegradation in water and sediments (An et al, 2011b;Wang et al, 2015b) or from the decomposition of plastics (Polo et al, 2006). In contrast to PBDEs, TBBPA is used primarily as a reactive flame retardant which is covalently bound to polymers and thus less easily released into the environment (de Wit et al, 2010).…”