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.
A new wastewater treatment system developed by RMIT University researchers could help prevent fatbergs—solid masses of fat, oil and grease (FOG) that clog sewers and cost water utilities globally billions to remove each ...
Environment
Aug 20, 2025
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When you throw out food waste, even though it's organic material, it doesn't just harmlessly decompose at the landfill. This process releases methane. In a 20-year period, methane is 80–85 times more potent as a greenhouse ...
Environment
Aug 20, 2025
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When I began my research on electronic waste in Pakistan, I quickly realized how deeply it touches both our environment and our daily lives. We live in an age where technology evolves faster than ever—phones, laptops, and ...
Farmers across Washington already spread thousands of tons of fertilizer from human waste on their crops each year, but there's a major blind spot when it comes to potential contaminants.
Environment
Aug 20, 2025
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Human waste usually gets flushed away, but instead of going down the toilet, it can help the planet and solve global fertilizer shortages, according to a new study published in the journal Proceedings of the National Academy ...
With conventional waste management systems falling short, many scientists are turning to nature for innovative solutions to the issue of plastic waste. One promising avenue is microbial degradation: harnessing the natural ...
Environment
Aug 12, 2025
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Today, approximately 1,800,000 acres of land in the United States is used for landfill waste disposal. In terms of volume, the U.S alone generated more than 290 million tons of solid waste in 2018, an amount equivalent to ...
Nanomaterials
Aug 6, 2025
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Just 9% of plastic worldwide is recycled. Due to waste mismanagement, nearly three-quarters of it ends up in landfills or the environment.
Environment
Jul 18, 2025
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Scientists are working with microbes found in Australia's unique ecosystem to create bioplastics which break down in land, soil and water. The research aims to tackle one of the most pressing global issues—single-use plastic ...
Environment
Jul 18, 2025
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According to the U.S. Department of Agriculture, 30% to 40% of the nation's food supply ends up being wasted. That adds up to billions of pounds every year rotting in landfills and emitting greenhouse gases like methane and ...
Biotechnology
Jul 15, 2025
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