The world is currently facing environmental issues caused by multiple industries such as petrochemicals, pharmaceuticals, textiles, tanneries, paper and pulp, food processing, and more. These industries generate large volumes of wastewater as well as solid waste materials which increase every year.

The reuse of wastewater and solid waste is required for a sustainable environment. Several treatment technologies, including advanced oxidation processes such as electro-oxidation, the Fenton Process, ozonation, photocatalysis, immobilized microbes/enzymatic treatment, and biological treatments, are applied to get potable water from wastewater streams. Moreover, research studies are being conducted on the conversion of solid waste into value-added products via numerous technologies. The recent attention on the synthesis and application of biologically integrated inorganic (nano) materials for waste management is promising due to its versatile activity and applicability.

The aim of this Special Issue is to cover the recent bio/inorganic/nano based catalytic systems for the removal of various organic contaminants from wastewater as well as for the recovery/conversion of by-products into value added products, resulting in environmental sustainability. This research should describe the recent catalytic processes and emphasize the environmental remediation through wastewater treatment and solid waste management. Original research and review articles are welcome.

Potential topics include but are not limited to the following:

• Environmental catalysis
• Bio-inorganic catalysts
• Bioinorganic Catalyst synthesis and characterization
• Bioinorganic/Nano based Catalytic materials
• Synthesis and characterization of Bioinorganic/nano based Catalytic materials
• Bio-Porous Materials
• Microbes/enzymes immobilized inorganic matrix