ISEIT/Viseu, Instituto Piaget, Estrada do Alto do Gaio, Galifonge, 3515-776 Lordosa, Viseu, Portugal.
J Hazard Mater. 2009 Dec 30;172(2-3):1560-72. doi: 10.1016/j.jhazmat.2009.08.028. Epub 2009 Aug 13.
Olive oil mill wastewater (OOMW) is responsible for serious environmental problems. In this study, the efficiency of two treatments involving fungi and photo-Fenton oxidation, sequentially applied to OOMW was analyzed for organic compounds degradation and toxicity mitigation. The treatment with fungi (especially Pleurotus sajor caju) of diluted OOMW samples promoted a reduction of their acute toxicity to Daphnia longispina. Although this fungi species have not induced significant color reduction it was responsible for 72,91 and 77% reductions in chemical oxygen demand (COD), total phenolic and organic compound contents. After biological treatment, photo-Fenton oxidation seemed to be an interesting solution, especially for color reduction. However, the OOMWs remained highly toxic after photo-Fenton oxidation. Considering the second sequence of treatments, namely photo-Fenton oxidation followed by biological treatment, the former revealed, once more, a great potential because it can be applied to non-diluted OOMW, with significant reductions in COD (53-76%), total phenolic content (81-92%) and organic compounds content (100%). Despite fungal species still have demonstrated a high capacity for bioaccumulation of organic compounds, resulting from photo-Fenton oxidation, the biological treatment did not cause substantial benefits in terms of COD, total phenolic content and toxicity reduction.
橄榄油厂废水（OOMW）是造成严重环境问题的元凶。在这项研究中，我们分析了两种处理方法的效率，这两种方法涉及真菌和光芬顿氧化，依次应用于 OOMW 以降解有机化合物和减轻毒性。用真菌（尤其是糙皮侧耳）处理稀释的 OOMW 样品可降低其对大型蚤的急性毒性。虽然这种真菌种类并没有显著降低颜色，但它对化学需氧量（COD）、总酚和有机化合物含量的降低分别达到了 72%、91%和 77%。经过生物处理后，光芬顿氧化似乎是一种很有前途的解决方案，特别是在降低颜色方面。然而，OOMW 在光芬顿氧化后仍然具有很高的毒性。考虑到第二种处理序列，即光芬顿氧化后进行生物处理，前者再次显示出巨大的潜力，因为它可以应用于未经稀释的 OOMW，COD（53-76%）、总酚含量（81-92%）和有机化合物含量（100%）有显著降低。尽管真菌种类仍然表现出对光芬顿氧化产生的有机化合物的高生物累积能力，但生物处理在 COD、总酚含量和毒性降低方面并没有带来实质性的好处。
