Sustainable Urban Wastewater Management

Dear Colleagues,

In September 2015, at the United Nations Sustainable Development Summit, its Member States formally adopted the 2030 Agenda for Sustainable Development with the aim of building a better world. One of these 17 Sustainable Development Goals established is: “Ensure availability and sustainable management of water and sanitation for all.”

Wastewater management, including wastewater collection, transportation, treatment, and associated sludge management, is a most critical feature in modern societies, as it provides essential human health and environment protection. Although substantial progress has been made in urban wastewater management, achieving sustainable urban wastewater management is still facing certain challenges. The existing urban wastewater management relies heavily on sewer systems and centralised wastewater treatment plants. Sewer systems are largely concrete constructions and are under serious threat of corrosion and blockage, which costs billions of dollars annually. In addition, the current wastewater treatment is resource-intensive. The conventional biological nutrient removal process is organic-carbon- and energy-demanding. A large amount of sludge is generated from the wastewater treatment process which needs to be disposed of. The wastewater treatment process also emits a significant amount of greenhouse gas, i.e., nitrous oxide and methane. More recently, increasingly more persistent emerging contaminants have been detected and have posed challenges to wastewater treatment processes.

This Special Issue aims to compile the most recent and important advancements with regard to sustainable urban water management in the context of increasing the sustainability of the sewer system and wastewater treatment processes. We will thus welcome research works such as energy- and carbon-efficient wastewater treatment technologies; sewer corrosion and odour management; resource recovery from wastewater; greenhouse gas emissions from wastewater systems; critical analysis on sustainable urban water management; digital water technologies to improve wastewater management; socioeconomic aspects associated with sustainable urban water management; and any other topics that improve the sustainability of urban wastewater management.

Dr. Haoran Duan
Guest Editor

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• sewage
• sustainability
• sewer
• wastewater
• management
• energy
• resource
• carbon footprint
• greenhouse gas
• emerging contaminants