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Sewage treatment (or domestic wastewater treatment) is a type of wastewater treatment that aims to remove contaminants from sewage to produce an effluent that is suitable to discharge or reuse. Sewage treatment plants (STPs) are facilities that process sewage using various technologies and criteria.
Zero liquid discharge (ZLD) is a water treatment process that recycles and reuses wastewater from industrial facilities. Learn about the concept, technologies, and benefits of ZLD, as well as the challenges and comparisons with other brine treatment methods.
Learn about the different types of wastewater treatment plants, such as sewage, industrial, agricultural and leachate, and the processes they use to remove contaminants and produce effluent. Find out the global trends, challenges and examples of wastewater treatment and reuse.
Learn about the processes, sources, contaminants and sectors of industrial wastewater treatment. Industrial wastewater is the by-product of various industries that may contain pollutants such as heavy metals, organic matter, nutrients, toxins, radionuclides and microplastics.
Sewage sludge is the semi-solid by-product of wastewater treatment, containing organic matter, pathogens, micro-pollutants and heavy metals. Learn about the methods of sludge production, treatment and disposal, and the environmental and health impacts of sewage sludge.
Learn how human civilizations have dealt with waste throughout history, from ancient systems in Syria and Rome to modern practices in England and the US. Explore the social, environmental and technological aspects of waste management across different eras and regions.
Wastewater is water used or contaminated in various applications or processes. Learn about different kinds of wastewater, such as sewage, industrial, leachate, return flow, surface runoff, and agricultural wastewater.
Sanitation refers to public health conditions related to clean drinking water and treatment and disposal of human excreta and sewage. It aims to protect human health, environment and dignity, and is a global development priority and a human right.