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.
Pharmaceutical products are essential for health, and they play and will continue to play a key role in disease prevention and treatment. However, they are exerting a major impact on the environment by affecting ecosystems ...
Environment
Feb 5, 2026
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The world is looking for more clean water. Intense storms and warmer weather have worsened droughts and reduced the amount of clean water underground and in rivers and lakes on the surface.
Environment
Feb 4, 2026
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Plastic pollution is causing severe problems worldwide. However, negotiations at the United Nations in Geneva last August did not result in the expected global plastics treaty. On 7 February 2026, the Intergovernmental Negotiating ...
Environment
Feb 3, 2026
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Kristen Hanneman made a small decision in 2022 that would upend life for her entire town.
Environment
Feb 2, 2026
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100
With insect farming projected to produce millions of tons of insects in the coming years, Arkansas Agricultural Experiment Station researchers offer evidence that the insect farming byproduct called "frass" can improve soil ...
Ecology
Jan 30, 2026
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53
No matter where you live in the United States, you have likely seen headlines about PFAS being detected in everything from drinking water to fish to milk to human bodies.
Environment
Jan 29, 2026
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Switching to biodegradable plastics could slash toxic pollution by more than a third and dramatically reduce global waste by mid-century, but only if cities and companies invest in the right disposal systems, a Yale School ...
Environment
Jan 28, 2026
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The adverse health impacts associated with emissions across the full life cycle of plastics could double by 2040 unless immediate action is taken, new research suggests. The study identified health harms at every stage of ...
Environment
Jan 27, 2026
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59
In lush South Florida, trees and bushes grow all year round. And that means yard waste and dead trees never stop piling up. But leaving them in a landfill is a climate-warming issue. Two South Florida governments think they ...
Earth Sciences
Jan 26, 2026
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25
Plastic pollution is everywhere—including where you would least expect it, especially when it's in tiny particle form. Today, scientists are working to measure the consequences of this contamination. There's the pollution ...
Environment
Jan 23, 2026
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