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首页> 外文期刊>Journal of environmental science and health >Advanced oxidation treatment of physico-chemically pre-treated olive mill industry effluent
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Advanced oxidation treatment of physico-chemically pre-treated olive mill industry effluent

机译：物理化学预处理橄榄厂工业废水的高级氧化处理

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In this study, the applicability of physico-chemical methods was investigated for the pre-treatment of the olive mill effluents prior to the discharge into the common sewerage ending with a municipal wastewater treatment plant. The samples were taken from an olive oil industry operated as three-phase process located in Turkey. Various pre-treatment methods including acid craking, polyelectrolyte and lime additions were applied. Advanced oxidation study using Fenton's process was also investigated following pre-treatment by acid cracking and cationic polyelectrolyte. Acid cracking alone gave satisfactory treatment efficiencies and polyelectrolite additions to the acid-cracked samples enhanced treatment efficiency. Since a complete treatment plant is available at the end of the sewer system, results indicated that the effluents of the investigated industry could be discharged into the municipal sewerage in the case of total chemical oxygen demand (COD_(tot)), suspended solid (SS) and volatile suspended solid (VSS) concentrations according to the Turkish Water Pollution Control Regulation after pre-treatment with 5 ppm anionic polyelectrolyte following acid cracking. The minimum COD_(tot), SS and VSS removals were observed when raw wastewater was pre-treated with lime and the discharge standards to the municipal sewer system could not be met. Advanced oxidation with Fenton's process was applied after acid cracking and cationic polyelectrolyte treatment in order to investigate further reduction in chemical oxygen demand (COD) concentration for minimizing the influence of this industrial discharge on the existing municipal wastewater treatment plant. Results indicated that COD_(tot) removal increased up to 89% from 74% after Fenton's oxidation for the acid cracked samples in which cationic polyelectrolite (10 ppm) was added.
机译：在这项研究中，研究了物理化学方法在将橄榄磨坊废水排放到市政污水处理厂的公共污水之前的预处理方法。样品取自位于土耳其的以三相过程运行的橄榄油工业。应用了各种预处理方法，包括酸裂，聚电解质和石灰添加。通过酸裂和阳离子聚电解质进行预处理后，还研究了使用芬顿方法进行的高级氧化研究。单独的酸裂可提供令人满意的处理效率，而向裂化酸的样品中添加聚电石可提高处理效率。由于下水道系统末端有完整的污水处理厂，因此结果表明，在总化学需氧量（COD_（tot）），悬浮固体（SS）的情况下，被调查行业的废水可以排放到市政污水中。 ）和根据《土耳其水污染控制条例》规定的挥发性悬浮固体（VSS）浓度，在酸裂后用5 ppm阴离子聚电解质进行预处理。当用石灰预处理原废水时，观察到最小的COD_（tot），SS和VSS去除量，并且不能达到市政下水道系统的排放标准。为了研究进一步降低化学需氧量（COD）浓度以最大程度地减少这种工业排放对现有市政废水处理厂的影响，在酸裂化和阳离子聚电解质处理之后应用了Fenton工艺进行的高级氧化。结果表明，对于添加了阳离子聚电石（10 ppm）的酸裂样品，在Fenton氧化后，COD_（tot）的去除率从74％增至89％。

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