Abstract
The hazardous and endocrine disturbing compounds (EDCs), present in the wastewaters, notably impair reproduction efficacy of fish and amphibians. Disruption of hormonal homeostasis in humans is also postulated. For this reason, development of an efficient method for purification of wastewaters from these compounds is of the highest environmental concern. Therefore, we employed cold atmospheric pressure plasmas (CAPPs), operated in high-throughput mode, for removal of hazardous and EDCs from liquid disposals. It was found that the studied CAPPs led to effective degradation of all the analyzed EDCs, including Bisphenol A (BPA), Bisphenol S (BPS), 17-alpha-ethinylestradiol (EE2), Dexamethasone (DXM), Benzophenone (BPH), Dapsone (DPS), and 2-Nitrophenol (2-NIP), as assessed by high-performance liquid chromatography with diode array detection (HPLC-DAD). Degradation products of the studied EDCs were identified by applying ultra performance liquid chromatography – tandem mass spectrometry (UPLC-MS/MS). To reveal the CAPP-liquid interactions, the concentrations of total organic carbon (TOC) and total nitrogen (TN) in the analyzed EDCs samples were estimated. Then, an attenuated total reflectance Furrier transform – infrared (ATR FT-IR) spectroscopy and UV/Vis absorption spectrophotometry were employed to decipher the contribution of the studied CAPPs to decomposition of EDCs. The collected results suggest that the analysed CAPPs might be applied in the future in wastewater treatment plants.
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