Waste treatment and disposal encompasses the engineered processes and systems used to manage solid, liquid, and gaseous wastes to minimize environmental and human health impacts. It includes physical, chemical, and biological treatment methods such as sedimentation, filtration, adsorption, oxidation–reduction, incineration, composting, anaerobic digestion, and advanced thermal or physicochemical processes, often integrated with resource recovery (e.g., energy, nutrients, materials). Disposal refers to the final placement of residuals in landfills, deep-well injection, or other long-term containment systems designed with liners, leachate collection, gas management, and monitoring to control emissions, prevent groundwater contamination, and ensure regulatory compliance.
New research has found increasing levels of artificial sweeteners in wastewater treatment plants, with downstream impacts on the environment.
Environment
Jul 11, 2025
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A leading expert in the health impacts of plastic pollution and microplastics is calling on the UN to end the use of toxic chemicals in all plastics, cap and reduce plastic production and argues against a treaty focused on ...
Earth Sciences
Jul 10, 2025
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Urban water bodies—rivers, lakes and oceans—are in trouble globally. Large sewage volumes damage the open environment, and new chemicals and pharmaceutical compounds don't break down on their own. When they are released ...
Environment
Jul 7, 2025
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There is a glaring lack of tracking for global recycling. Poor waste management is deeply connected to climate change, plastic pollution and global nutrient imbalances globally.
Environment
Jul 2, 2025
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Operators have pumped water to cool the nuclear reactors at the Fukushima Daiichi Nuclear Power Plant (FDNPP) since the accident in 2011 and treated this cooling water with the Advanced Liquid Processing System (ALPS), which ...
Environment
Jul 2, 2025
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Pressures such as population growth, urbanization, and land degradation are straining the global agrifood system, the network connecting all steps of the food supply chain from growing crops in the field to waste elimination ...
Ecology
Jun 23, 2025
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Researchers from the Lawrence Berkeley National Laboratory (Berkeley Lab), UC Irvine, and the University of Illinois Urbana-Champaign (UIUC), have used biology to convert human urine into a valuable product. The team genetically ...
Cell & Microbiology
Jun 17, 2025
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On the road to "net zero," governments should use a separate target to control the ramp-up of atmospheric carbon removals, independently of emission reductions. Setting a political target for the volume of such planetary ...
Environment
Jun 12, 2025
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A study in the International Journal of Environment and Waste Management has found a direct link between Ghana's mounting urban flooding challenges and unregulated waste disposal practices. The findings have significant consequences ...
Environment
Jun 10, 2025
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Across Africa, many rural communities face a growing sanitation crisis. Wastewater treatment systems, where they exist, are often old, overloaded, or broken. In some towns, untreated sewage flows directly into rivers, contaminating ...
Environment
Jun 2, 2025
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