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.
Mangroves, typical of tropical and subtropical latitudes, have become veritable natural traps for land- and sea-based waste. The roots of these trees, known as mangroves, have a great capacity to trap litter—from both land ...
Environment
Jan 22, 2026
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If there's one material that defines modern life more than any other, it's plastic: present from the moment we're born in newborn stool, in product packaging, in the soil beneath our feet and the air we breathe.
Environment
Jan 22, 2026
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Researchers at the University of Oulu, Finland, have developed a pine-bark–based water-treatment medium that efficiently removes antibiotics as well as residues of blood-pressure and antidepressant medicines from wastewater ...
Environment
Jan 21, 2026
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Excavated soil from construction sites usually ends up in landfills, but it has great potential. Researchers at the Technical University of Munich (TUM) show how excavated soil can be enriched with organic waste so that it ...
Environment
Jan 13, 2026
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With an estimated 30–40% of the United States' food supply ending up as waste, according to the U.S. Food and Drug Administration, food science and horticulture experts teamed up to study if it could lay the foundation for ...
Biotechnology
Jan 9, 2026
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Like much of the Western world, Canada is facing a crisis in waste disposal as landfills reach their capacity. In Ontario, a live countdown gives municipal landfills just eight more years before they are full. We urgently ...
Environment
Dec 25, 2025
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UC Riverside scientists have created a small-scale system that transforms food waste into high-protein animal feed and fertilizer using black soldier flies, offering a sustainable solution to a major environmental problem.
Biotechnology
Dec 23, 2025
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64
The rapid accumulation of plastic waste is currently posing significant risks for both human health and the environment on Earth. A possible solution to this problem would be to recycle plastic waste, breaking it into smaller ...
Every year, millions of tons of food end up in South Africa's landfills. This is a wasted resource that deepens environmental damage, worsens food insecurity and costs the economy billions. But there are opportunities to ...
Environment
Dec 10, 2025
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19
A new study from the University of Maryland's Jerin Tasnim reveals that Virginia's current approach to managing septic system failures misses a critical factor: the time-varying relationship between hydrological stressors ...
Environment
Dec 8, 2025
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