Characterization and Innovative Process of Oily Wastewater from Substations

Abstract The increasing demand for electrical power has led to a surge in the construction of substations worldwide. In the context of today's carbon emission reduction, more and more people are be-ginning to pay attention to the treatment of oily wastewater generated from substations. The specific traits such as the complicated components and rapid change in the raw wastewater quality make it rather hard to be degraded thoroughly and economically. In response to this challenge, we introduce a novel solution that combines pre-treatment, dissolved air flotation, and fine multi-stage filtration techniques to efficiently remove oil and suspended solids from oily wastewater discharge. This study comprehensively summarizes the characteristics of oil-containing wastewater in substations and invents a novel process for treating oil-containing wastewater from substations. It exhibits notable advantages in terms of energy efficiency and cost-effectiveness compared to conventional treatment methods. This research not only promotes the technical advances in the field of wastewater treatment but also provides a practical and sustainable solution for industries grappling with the conundrum of oily wastewater manage-ment. The findings presented here can be supposed to serve as a stepping stone towards the development of more efficient and environmentally friendly wastewater treatment strategies.