Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, Henan, China.
Henan Province Environmental Monitoring Center, Zhengzhou, 450001, Henan, China.
Arch Environ Contam Toxicol. 2019 Oct;77(3):461-470. doi: 10.1007/s00244-019-00663-4. Epub 2019 Aug 17.
Land application is suggested to be the most economical sludge disposal method but is also a potential source of bisphenol analogs (BPs) to the environment. In this study, BP concentrations in sewage sludge from Henan province ranged from 15.1 to 2237 ng g dw. BPA was dominant with mean concentration of 140 ng g dw, followed by BPS (mean 43.4 ng g dw), BPF (mean 7.98 ng g dw), BPAF (mean 1.04 ng g dw), BPAP (mean 0.88 ng g dw), BPB (mean 0.38 ng g dw), and BPZ (mean 0.33 ng g dw). Apart from BPB, no significant correlations were found between BPs and wastewater treatment plants characteristics, probably because adsorption does not play a major role in the removal of BPs. The estimated total emission flux of BPs from sludge-amended soils are approximately 62.7 kg year. BPA is the largest contributor with emission flux of 45.3 kg year. Hazard quotient values for BPs in sludge-amended soils are 3-6 orders of magnitude lower than 1 with total 17β-estradiol equivalents ranging from 0.33 to 26.8 pg g EEQ dw. Overall, although being partially replaced by other analogs, BPA is still widely used in Henan province.
土地施用被认为是最经济的污泥处置方法，但也是双酚类似物（BPs）向环境释放的潜在来源。在本研究中，河南省污水污泥中的 BP 浓度范围为 15.1 至 2237ng g dw。BPA 是最主要的存在形式，平均浓度为 140ng g dw，其次是 BPS（平均浓度 43.4ng g dw）、BPF（平均浓度 7.98ng g dw）、BPAF（平均浓度 1.04ng g dw）、BPAP（平均浓度 0.88ng g dw）、BPB（平均浓度 0.38ng g dw）和 BPZ（平均浓度 0.33ng g dw）。除了 BPB 之外，BPs 与污水处理厂特征之间没有发现显著相关性，这可能是因为吸附在 BPs 的去除过程中不起主要作用。从添加污泥的土壤中估算的 BPs 总排放通量约为 62.7kg 年。BPA 是最大的贡献者，排放通量为 45.3kg 年。添加污泥的土壤中 BPs 的危害商值比 1 低 3-6 个数量级，总 17β-雌二醇当量范围为 0.33 至 26.8pg g EEQ dw。总体而言，尽管被其他类似物部分取代，但 BPA 在河南省仍被广泛使用。
