A new technology to treat aqueous industrial wastewater using an oxidative pretreatment followed by a microalgea-based phytoremediation process

通过各种工业过程产生的废气，主要是炼油业，含有丰富的有毒有机和无机污染物。因此，这些含水基质的顽固性，加上它们的高变异性，使得处理过程非常耗能，通常不包括碳价态步骤。然而，在过去的几年里，人们正在研究各种先进的生物处理尝试，并取得了不同程度的成功。这些方法中的大多数都引起了对工艺复杂性的担忧，需要较大的表面积，具有环境限制以及污染物的生物降解性低，因此总体效率较低，仅举几例。我们的创新技术解决了所有这些问题，提出了一个封闭的两步系统，允许通过先进的氧化过程几乎完全和快速地降解污染物，然后将生成的简单有机化合物微藻转化为各种生物商品。因此，我们的技术不仅提供了一种高效、简单、紧凑、能源需求低的解决方案，还提供了一种评估这些工业废流未开发潜力的方法，提供了附加值化合物，在满足严格的环境水排放要求的同时，进一步降低了整体实施和开发成本。**

Waste-streams generated through various industrial processes, mostly oil refinery industries, are rich in toxic organic and inorganic pollutants. Hence, the recalcitrant nature of these aqueous substrates, together with their high variability, makes the treatment process highly energy-extensive and generally does not include a carbon valorization step. There were, however, various advanced biological treatment attempts being investigated in the last years, with various degrees of success. Most of these approaches raised concerns regarding the process complexity, required large surface areas, had environmental constrains as well as low biodegradability of pollutants, and thus low overall efficiencies, just to name a few. Our innovative technology addresses all these issues by proposing an enclosed two-step system which allows for an almost complete and fast degradation of pollutants through an advanced oxidative process followed by microalgal conversion of the generated simple organic compounds to various biocommodities. Therefore, our technology not only provides a high-efficiency simple and compact solution with low energy requirements, but also provides a way to valorize the untapped potential of these industrial waste-streams, providing added value compounds which further reduce the overall implementation and exploitation costs while answering the strict environmental water discharge requirements.**