Department for Environmental Chemistry, GKSS Research Centre Geesthacht, Geesthacht, Germany.
Environ Pollut. 2010 May;158(5):1467-71. doi: 10.1016/j.envpol.2009.12.031. Epub 2010 Jan 6.
Polyfluoroalkyl compounds (PFCs) are widely used in industry and consumer products. These products could end up finally in landfills where their leachates are a potential source for PFCs into the aqueous environment. In this study, samples of untreated and treated leachate from 22 landfill sites in Germany were analysed for 43 PFCs. SigmaPFC concentrations ranged from 31 to 12,819 ng/L in untreated leachate and 4-8060 ng/L in treated leachate. The dominating compounds in untreated leachate were perfluorobutanoic acid (PFBA) (mean contribution 27%) and perfluorobutane sulfonate (PFBS) (24%). The discharge of PFCs into the aqueous environment depended on the cleaning treatment systems. Membrane treatments (reverse osmosis and nanofiltrations) and activated carbon released lower concentrations of PFCs into the environment than cleaning systems using wet air oxidation or only biological treatment. The mass flows of summation operatorPFCs into the aqueous environment ranged between 0.08 and 956 mg/day.
多氟烷基化合物(PFCs)广泛应用于工业和消费产品中。这些产品最终可能会进入垃圾填埋场,其沥滤液可能成为 PFCs 进入水环境的潜在来源。在这项研究中,分析了来自德国 22 个垃圾填埋场未经处理和处理过的沥滤液样本中的 43 种 PFCs。未经处理的沥滤液中 SigmaPFC 浓度范围为 31 至 12819ng/L,处理后的沥滤液中浓度为 4 至 8060ng/L。未经处理的沥滤液中主要的化合物是全氟丁烷磺酸(PFBS)(平均贡献 27%)和全氟丁烷磺酸(PFBA)(24%)。PFCs 排放到水环境中取决于清洁处理系统。膜处理(反渗透和纳滤)和活性炭向环境中释放的 PFCs 浓度低于使用湿式氧化或仅生物处理的清洁系统。PFCs 进入水环境的质量流量范围为 0.08 至 956mg/天。