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.
The world is struggling to deal with ever-growing quantities of waste. A new World Bank Group report, What a Waste 3.0, shows that more than 2.6 billion tonnes of municipal solid waste (which includes rubbish from households, ...
Environment
Mar 29, 2026
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New research from a team at Trinity College Dublin has unearthed a cheap and environmentally friendly new option for removing pollutants from our water. The key? Oyster shells that would ordinarily end up in landfill sites ...
Earth Sciences
Mar 26, 2026
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Converting sugarcane waste to biofuel could become more environmentally friendly and cost-effective, thanks to a joint project at The University of Queensland and the Indian Institute of Technology Delhi. Ph.D. candidate ...
Biotechnology
Mar 26, 2026
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Billions of dirty diapers end up buried or burned every year in Japan—more from seniors than babies—but a recycling breakthrough has given them a new lease on life, one hot mess at a time.
Environment
Mar 25, 2026
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Hungry gulls do not only steal our chips and sandwiches. They learn our habits, and look for reliable sources of food. That includes waste treatment centers, landfill or anywhere food waste is concentrated. Many gull populations ...
Ecology
Mar 19, 2026
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Energy-from-waste facilities are often positioned as a cleaner alternative to landfill, transforming rubbish into electricity and reducing the UK's waste burden. But new research suggests that there may be a hidden cost to ...
Environment
Mar 17, 2026
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In areas where freshwater is scarce, farmers often turn to treated wastewater to irrigate crops. And many regulators and consumers worry about exposing food to compounds routinely found in wastewater, including many psychoactive ...
Molecular & Computational biology
Mar 12, 2026
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A Stanford Law report reveals California's inadequate monitoring of dairies and feedlots, highlighting the need for stronger regulatory enforcement to protect groundwater quality and community health.
Environment
Mar 6, 2026
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A plastic drinks bottle is one of the most "recyclable" objects in the modern waste stream. It is lightweight and collected in huge volumes. Yet even for this item, the reality of recycling is messy: labels, inks, caps, food ...
Environment
Mar 4, 2026
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People and animals create lots of waste that is usually sent to landfills, incinerated, or stored in engineered ponds such as manure lagoons. Now, researchers report a potential removal method using insects, specifically ...
Biotechnology
Mar 4, 2026
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