REMOVAL OF BPA FROM LANDFILL LEACHATES USING FENTON-ADSORPTION PROCESS

The objective of this investigation was to identify and quantify the presence of Bisphenol-A (BPA) in raw and treated leachates with the Fenton-adsorption process. BPA is used as a monomer to produce epoxy resins and it is a compound classified as endocrine disruptor. For this reason, it is important to quantify its presence in effluents that will be disposed to the environment to avoid damage to human health and other organisms. The Fenton-adsorption process consisted in the implementation of an advanced oxidation using H2O2 and FeSO4 applied to the raw leachate and subsequently the application of the adsorption process through a column packed with activated carbon. The quantification of BPA was carried out by gas chromatography coupled to mass spectrometry, using liquid-liquid and liquid-solid extraction methods. A recovery percentage study was carried out to validate the extraction methods. Finally, it was found that the leached evaluated contained >12 mg L-1 and at the end of the treatment its concentration was

本研究的目标为识别并定量分析芬顿-吸附工艺处理前后的原始渗滤液与处理后渗滤液中双酚A（Bisphenol-A，BPA）的含量。双酚A作为单体用于制备环氧树脂，属于被归类为内分泌干扰物的化合物。因此，对拟排放至环境的废水进行其含量定量分析至关重要，以避免对人体健康及其他生物体造成损害。本研究采用的芬顿-吸附工艺，为先使用过氧化氢（H₂O₂）与硫酸亚铁（FeSO₄）对原始渗滤液进行高级氧化处理，随后通过装填活性炭的吸附柱完成吸附工序。双酚A的定量分析采用气相色谱-质谱联用法，并辅以液液萃取与液固萃取两种提取方法。本研究开展了回收率百分比研究以验证上述提取方法的有效性。最终研究发现，所评估的原始渗滤液中双酚A浓度大于12 mg·L⁻¹，经处理后其浓度为