Sewage sludge can find a second life on farm fields. Here's how it's made
What goes down your toilet can end up on farm fields across the United States.
Environment
Mar 26, 2025
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Page 17: Research news on waste treatment and disposal
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.
How our perception of waste shapes our reality
Recently, a leaflet was delivered to my home from Nuclear Waste Services, the company that is overseeing the final disposal of some of the most dangerous waste that exists. It reminded me that the small village where I live ...
Environment
Mar 25, 2025
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Making food from our organic waste may not be as good an idea as first thought
Waste-to-nutrition technologies aim to transform residual organic waste (such as forestry and agricultural residues, manure, green residues and food waste) into ingredients for human or animal consumption. They are often ...
Environment
Mar 19, 2025
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Plant-based plastics could help reduce the millions of tons of medical waste hospitals generate each year
Hospitals around the world generate millions of tons of plastic waste annually. Much of this waste comes from single-use items such as face masks, surgical gloves, syringes, IV tubes and sterile packaging materials.
Environment
Mar 13, 2025
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Community composting programs show promise in reducing household food waste
A study published in the Journal of Agriculture, Food Systems, and Community Development reveals the positive impact of community composting programs on reducing household food waste. The article, by Associate Professor Nevin ...
Environment
Mar 12, 2025
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Battery waste and kitchen foil create nanocatalyst for CO₂ to methane fuel conversion
Battery waste is a serious environmental problem: It contains substances that pose a threat to both human health and ecosystems. At the same time, however, batteries also contain valuable materials such as nickel, which we ...
Nanomaterials
Mar 4, 2025
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Discarded silk yarn can clean up polluted waterways—researchers develop hollow sphere silk particles to test adsorption
Cornell researchers have developed an elegant and sustainable way to clean up waterways: reusing one waste product to remove another.
Nanomaterials
Nov 14, 2024
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A trash compactor is going to the space station
Astronauts on the International Space Station generate their share of garbage, filling up cargo ships that then deorbit and burn up in the atmosphere. Now Sierra Space has won a contract to build a trash compactor for the ...
Space Exploration
Nov 11, 2024
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Upcycling e-waste into heterogeneous CuₓO nano skeletons for high-performance glucose sensing
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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New method to break down forever chemicals uses nanoparticles and ultrasound
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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