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（主要是炼油工业）产生的污水流富含有毒有机和无机污染物。因此，这些水性基质的抗氧化性质以及它们的高可变性使得处理方法是高度能量密集的，并且通常不包括碳稳定步骤。然而，在过去的几年里，人们对各种先进的生物治疗方法进行了研究，取得了不同程度的成功。这些方法中的大多数引起了对工艺复杂性的关注，需要大的表面积，具有环境限制以及污染物的低生物降解性，因此总体效率低，仅举几例。我们的创新技术通过提出一个封闭的两步系统来解决所有这些问题，该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，然后通过微藻将生成的简单有机化合物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、紧凑的低能耗解决方案，而且还提供了一种方法，可以有效利用这些工业废水的未开发潜力，提供附加值化合物，进一步降低整体实施和开发成本，同时满足严格的环境水排放要求。

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.**