Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in sewage sludge from wastewater treatment plants of Kunming City

Abstract

Abstract-In this study, the concentrations, distribution and sources of 16 polycyclic aromatic hydrocarbons (PAHs) and 28 polychlorinated biphenyls (PCBs) insewage sludge samples from wastewater treatment plants of Kunming citywere investigated. The total PAHs concentration (ƩPAHs) varied from 1941 to3635ng/g, and the totalPCBs concentration (ƩPCBs) ranged from 7.55 to 21.66 ng/g. The results of sources identification suggested that PAHs in sewage sludge were mostlyproduced from biomass and petroleum combustion. PCBs compositionand congener ratios indicated that the less chlorinated were the dominant source.

A review of polycyclic aromatic hydrocarbons and their substitutions in full‐scale wastewater treatment plants

“…PAHs concentration in WWTPs in sludge at different regions of (a) Asia, (b) Europe, and (c) America and Middle East. The data were collected from: Asia: Beijing, China (Dai, Xu, Chen, Yang, & Ke, 2007), Guangdong, China (Zeng et al., 2010), Taian, China (Tian et al., 2012), Tianjin, China (Qi et al., 2011), Qingdao, China (Zhai, Tian, & Liu, 2011), Nakdong, Korea (Ju, Lee, Sim, Eun, & Oh, 2009), Bursa, Turkey (Salihoglu et al., 2010), Kuwait (Helaleh, Al‐Omair, Nisar, & Gevao, 2005), Hong Kong, China (Cai, Mo, Wu, Zeng, & Katsoyiannis, 2007), Yunnan, China (Xiaoming et al., 2013), and Zhejiang, China (Hua, Wu, Liu, Tientchen, & Chen, 2008). Europe: Catalonia, Spain (Pérez et al., 2001), Madrid, Spain (Sánchez‐Brunete, Miguel, & Tadeo, 2007), Italy (Suciu, Lamastra, & Trevisan, 2015), Venice, Italy (Busetti et al., 2006), Finland (Kapanen, Vikman, Rajasärkkä, Virta, & Itävaara, 2013), Paris, France (Blanchard, Teil, Ollivon, Legenti, & Chevreuil, 2004), Poland (Oleszczuk, 2009), Switzerland (Brändli et al., 2007), UK (Stevens, Northcott, Stern, Tomy, & Jones, 2003), and Germany (Schnaak et al., 1997).…”