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Treatment of olive mill wastewater by combined advanced oxidation and biodegradation

机译：先进氧化与生物降解相结合处理橄榄磨坊废水

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In the present study, olive mill wastewater (OMW) treatment is investigated experimentally in various stage processes of advanced oxidation with ozone (O3), photodegradation by UV radiation, and an aerobic biodegradation. The effects of these treatment processes on the removal of chemical oxygen demand (COD) of OMW are monitored. For both single-stage treatment of O3 and two-stage treatment of O3/UV, the chemical oxygen demand remains quite high. In contrast, a combination of biological and UV/O3 process for the OMW treatment seems to be a serious alternative in the reduction of the COD. In particular, biodegradation of UV/O3 pretreated OMW found to have the highest removal levels; the percent of COD removal reaches about 91 %. On the other hand, the kinetic study shows that the decay of chemical oxygen demand follows a first-order and pseudo first-order models for advanced oxidation and biodegradation processes; respectively.
机译：在本研究中，对橄榄磨废水（OMW）的处理在臭氧（O3）的高级氧化，紫外线辐射的光降解和好氧生物降解的各个阶段进行了实验研究。监测这些处理过程对去除OMW的化学需氧量（COD）的影响。对于O3的单阶段处理和O3 / UV的两阶段处理，化学需氧量仍然很高。相比之下，将生物工艺与UV / O3工艺相结合进行OMW处理似乎是减少COD的重要替代方法。特别是，经UV / O3预处理的OMW的生物降解具有最高去除水平; COD去除率达到约91％。另一方面，动力学研究表明化学需氧量的衰减遵循高级氧化和生物降解过程的一阶和伪一阶模型。分别。

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