Seasonal concentration variation and potential influencing factors of organophosphorus flame retardants in a wastewater treatment plant

2021 ◽  
pp. 111318
Author(s):  
Shenghong Li ◽  
Fenfen Zhu ◽  
Dongrui Zhang ◽  
Chenghui Li ◽  
Yiping Xu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Influencing Factors ◽  
Wastewater Treatment Plant ◽  
Flame Retardants ◽  
Treatment Plant ◽  
Concentration Variation ◽  
Organophosphorus Flame Retardants

scholarly journals Identification and Toxicity Prediction of Biotransformation Molecules of Organophosphate Flame Retardants by Microbial Reactions in a Wastewater Treatment Plant

2021 ◽  
Vol 22 (10) ◽  
pp. 5376
Author(s):  
Yeowool Choi ◽  
Sang Don Kim
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Flame Retardants ◽  
Manufacturing Industry ◽  
High Resolution Mass Spectrometry ◽  
Removal Rate ◽  
Parent Compound ◽  
Treatment Plant ◽  
Biological Reaction ◽  
Biotransformation Products

Organophosphate flame retardants (OPFRs) are substances added to plastics, textiles, and furniture, and are used as alternatives to brominated flame retardants. As the use of OPFRs increases in the manufacturing industry, the concentration in the aquatic environment is also increasing. In this study, OPFRs introduced into a wastewater treatment plant (WWTP) were identified, and the toxicity of biotransformation molecules generated by the biological reaction was predicted. Tris(2-butoxyethyl) phosphate, tris(2-butoxyethyl) phosphate, and triphenyl phosphate were selected as research analytes. Chemicals were analyzed using high-resolution mass spectrometry, and toxicity was predicted according to the structure. As a result, tris(1-chloro-2-propyl) phosphate showed the highest concentration, and the removal rate of OPFRs in the WWTP was 0–57%. A total of 15 biotransformation products were produced by microorganisms in the WWTP. Most of the biotransformation products were predicted to be less toxic than the parent compound, but some were highly toxic. These biotransformation products, as well as OPFRs, could flow into the water from the WWTP and affect the aquatic ecosystem.

The influence of an upgrade on the reduction of organophosphate flame retardants in a wastewater treatment plant

Chemosphere ◽  
2020 ◽  
Vol 256 ◽  
pp. 126895 ◽  
Author(s):  
Dongrui Zhang ◽  
Shenghong Li ◽  
Fenfen Zhu ◽  
Chenghui Li ◽  
Yiping Xu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Flame Retardants ◽  
Treatment Plant
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