Editorial overview: Electrochemical technologies for wastewater treatment with a bright future in the forthcoming years to benefit of our society

Climate change and growth of population are forecast to cause severe shortage of resources such as energy, food and water, although this is expected to be dissimilar throughout the world (Misra) having a higher impact in developing countries. Therefore, there is a critical need to design and develop affordable solutions that ensure the access to critical resources by understanding the nexus sectors. In the case of water security, this concept compresses interrelated tasks and highlights water's centrality for achieving a sense of security, development, sustainability and human well-being, at all levels (Mishra). In this sense, the development of technologies and smart water solutions will play a key role in achieving the Sustainable Development Goal 6 (SDG6), since it represents a substantial opportunity if its implementation is carried out in order to guarantee sustainability and increase competence in water management (to treat and distribute water for human use) (Van der Bruggen and Kumar). To do that, the integration of the technologies developed until now in the water sector will represent a clear benefit for our society, offering a coherent vision for the future. This integration must arise from a consensus through a collaborative multidisciplinary process in the different water security