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.
As the use of electronic devices continues to rise, the management of electronic waste (e-waste) has become a critical issue. Printed circuit board (PCB) recycling methods are generally classified into physical and chemical ...
Bio & Medicine
Sep 18, 2024
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What do firefighting foam, non-stick cookware, water-repellent textiles and pesticides all have in common? They all contain per- and polyfluoroalkyl substances, or PFAS—human-made chemicals that don't break down naturally. ...
Bio & Medicine
Sep 13, 2024
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18
Crab shells might just have another role besides fodder for the compost bin. University of Maryland researchers have engineered a seafood-waste material that removes chemical pesticides and herbicides from produce and extends ...
Nanomaterials
Jul 22, 2024
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39
Using waste to purify water may sound counterintuitive. But at TU Wien, this is exactly what has now been achieved. Researchers have developed a special nanostructure to filter a widespread class of harmful dyes from water.
Nanomaterials
Apr 24, 2024
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74
Water pollution from dyes used in textile, food, cosmetic and other manufacturing is a major ecological concern with industry and scientists seeking biocompatible and more sustainable alternatives to protect the environment.
Nanomaterials
Mar 19, 2024
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7
Nuclear power is considered one of the ways to reduce dependence on fossil fuels, but how to deal with nuclear waste products is among the issues surrounding it. Radioactive waste products can be turned into more stable elements, ...
General Physics
Feb 16, 2024
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50
Researchers from ICIQ in Spain have designed micromotors that move around on their own to purify wastewater. The process creates ammonia, which can serve as a green energy source. Now, an AI method developed at the University ...
Nanomaterials
Nov 14, 2023
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45
When Ange Nzihou, an expert in converting society's waste into valuable products, visited Princeton in 2022, he brought with him a technique to transform waste biomass into graphene, a material with many uses from batteries ...
Nanomaterials
Jul 13, 2023
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97
With the rapid development of urbanization and industrialization, environmental problems became increasingly serious. Dye wastewater is considered to be one of the biggest challenges due to its high toxicity. Organic dyes ...
Nanomaterials
May 16, 2023
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3
Membrane separation technology has been widely recognized as a more advantageous technology owing to its high treatment efficiency, low footprint, reliable effluent quality. However, its further sustainable growth has been ...
Bio & Medicine
Apr 27, 2023
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