The occurrence and ecological risk assessment of typical organic pollutants in the effluents of urban reclaimed water plants was written by Wang, Long;Xu, Xiong;Zhu, Dan;Li, Xiongyong;Zhang, Guangxin;Chen, Gang;Liu, Quanzhen;Lin, Lihua;Wang, Donghong. And the article was included in Huanjing Kexue Xuebao in 2021.Related Products of 84-61-7 This article mentions the following:
The utilization of reclaimed water has been widely concerned by the society due to its potential ecol. and health risks because of the trace amount of organic pollutants in reclaimed water. In order to explore the occurrence of the typical organic pollutants (including PAHs, PAEs and pesticides) in reclaimed water and their removal before and after upgrading and reconstruction of wastewater treatment plant, the effluents from 5 water reclamation plants in Beijing were monitored continuously for 6 mo in 2019, and their ecol. risks were assessed. The results showed that the pollutants with 100% detection rate were NaP, Flu, Phe, Ant, Flua, Pyr, BaA, Chr, BaP, DMP, DEP, DIBP, DNBP, DEHP, dichlorvos and atrazine. PAHs with two and three aromatic rings were the main components, mainly including Phe, NaP, Flu, Ant and Ace, accounting for more than 55% of the total PAHs. For PAEs, DEHP, DMP, DIBP and DNBP were the main PAEs components, accounting for more than 80% of the total PAEs. For pesticides, dichlorvos and atrazine were the main components. The monthly average concentration of PAHs, PAEs and pesticides were 53.6â?5.9, 4881.3â?050.2, and 77.7â?7.2 ng·L-1, resp. Compared with the effluents of water reclamation plants before the upgrading and reconstruction, the concentrations of these typical organic pollutants decreased significantly. The ecol. risk assessment showed that PAHs, DMP, DEHP, DEP, atrazine and chlorothalonil were at low-risk level in the effluents; but DIBP and DNBP were medium-risk or high-risk pollutants; and the dichlorvos and chlorpyrifos showed moderate risk in individual samples. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Related Products of 84-61-7).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Related Products of 84-61-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics