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 University of Cordoba has developed a biodegradable material, made with nanocellulose and photocatalytic particles, for the efficient decontamination of urban air.
Nanomaterials
Apr 19, 2023
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73
Waste containing nanomaterials—or nanowaste—is an emerging safety concern worldwide, requiring environmentally sound management and regulation that still need to be established. Researchers at the University of Fribourg ...
Nanomaterials
Mar 7, 2023
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3
Putting that soda bottle or takeout container into the recycling bin is far from a guarantee it will be turned into something new. Scientists at Rice University are trying to address this problem by making the process profitable.
Nanomaterials
Feb 16, 2023
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154
Chemists from St Petersburg University have developed a method for purifying water from organic compounds using tin oxide nanoparticle based photocatalysts. The findings of the research are published in the Journal of Alloys ...
Nanomaterials
Jan 17, 2023
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8
NUST MISIS researchers have created a reusable and environment friendly sorbent for cleaning antibiotics from wastewater. The proposed sorbent has a number of advantages compared to already known analogs—low production ...
Nanomaterials
Oct 26, 2022
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14
Once a water source is contaminated, it can be costly and difficult to remediate. Natural remedies can take hundreds of years and still may not successfully remove all the dangerous contaminants. When it comes to global public ...
Nanomaterials
Jun 22, 2022
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8
Here's another thing to do with that mountain of used plastic: make it soak up excess carbon dioxide.
Nanomaterials
Apr 5, 2022
3
390
Membrane filters don't require much energy to purify water, making them popular for wastewater treatment. To keep these materials in tip-top condition, they're commonly cleaned with large amounts of strong chemicals, but ...
Nanophysics
Mar 2, 2022
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98
The human health is suffering from effluent containing heavy metal ions (such as Cr(VI)) and organic dyes (such as rhodamine B). Among numerous strategies to remove pollutants from water, photocatalysis has attracted extensive ...
Nanomaterials
Dec 20, 2021
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6
A research team led by Professor Jyh-Ming Wu of the Department of Materials Science and Engineering at National Tsing Hua University (NTHU) in Taiwan has recently developed two composite piezoelectric materials extracted ...
Nanophysics
Jul 20, 2021
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835
