There are currently a number of industries all over the world which consume a large amount of water and raw materials and produce highly polluted wastewaters. Such effluents may be considered as a main source of environmental pollution and can bring severe toxic effects to living organisms. Various techniques have so far been developed in this regard to deal with such a problem which can be simply divided into physicochemical and biological technologies. However, a limited number of lab-scale developed technologies have been transferred to real and full-scale applications. The lack of the information on the sustainability aspects (i.e., technical, environmental, economic, and social) of the so far developed methods can be considered as a main reason for such low transferring rates. This can cause difficulties for decision makers to choose the best options among the existing alternatives. This Special Issue calls for reviews and original research papers which bring novel contributions in the development and application of sustainable water and wastewater treatment technologies.
Keywords: Sustainability, water and wastewater; Treatment technologies; Environmental pollution; Environmental toxicity.