Environmental remediation – Page 7

Effect of mining activities on the rhizosphere soil bacteria of seven plants in the iron ore area

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Iron ore mining damages soil and contaminates it with heavy metals, disrupting the beneficial bacteria that live around plant roots. This study examined seven plants growing in a mining area and found that each plant attracted different types of bacteria to survive the harsh conditions. Some bacteria help plants resist metal toxicity through various mechanisms. Understanding which bacteria naturally thrive in contaminated soils could help restore degraded mining areas.

Enhancing Phenanthrene Degradation by Burkholderia sp. FM-2 with Rhamnolipid: Mechanistic Insights from Cell Surface Properties and Transcriptomic Analysis

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Scientists studied how a natural soap-like substance called rhamnolipid can help bacteria degrade phenanthrene, a dangerous pollution compound found in oil-contaminated soil. They found that the right amount of this substance makes the bacteria better at breaking down the pollutant by changing the bacteria’s surface properties and activating specific genes. The research shows promise for developing better methods to clean up contaminated environments.

Microbial communities in petroleum refinery effluents and their complex functions

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Oil refineries produce large amounts of wastewater containing harmful petroleum products and heavy metals. Instead of using toxic chemical treatments, scientists are discovering that microorganisms naturally found in this wastewater—including bacteria, fungi, algae, and yeast—can break down these pollutants safely and effectively. These microbes can degrade oil hydrocarbons, remove heavy metals, and produce natural surfactants that help in the cleanup process, offering an environmentally friendly and cost-effective solution to refinery pollution.

Biochar Composite with Enhanced Performance Prepared Through Microbial Modification for Water Pollutant Removal

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Scientists created a special type of charcoal (biochar) by using fungi to break down agricultural waste before processing it. This fungal-treated biochar is much better at removing pollutants like dyes, antibiotics, and heavy metals from water compared to regular biochar. The material can be reused many times, making it practical and cost-effective for cleaning contaminated water.

Enhanced biodegradation of fluorinated pharmaceutical by Aspergillus flavus and Cunninghamella elegans biofilms: kinetics and mechanisms

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This research shows that two types of fungi—Aspergillus flavus and Cunninghamella elegans—can effectively break down commonly prescribed medications found in wastewater through biofilm formation on foam carriers. The fungi degrade these drugs through enzymatic action rather than absorption, removing 85-99% of the pharmaceuticals within days. This discovery offers a promising, cost-effective biological treatment for cleaning wastewater from hospitals and pharmaceutical factories, potentially protecting aquatic environments from drug pollution.

Nicotine Degradation by Trametes versicolor: Insights from Diverse Environmental Stressors and Wastewater Medium

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Scientists tested whether a type of fungus called Trametes versicolor could break down nicotine pollution in wastewater. They found that the fungus successfully removed 80-99% of nicotine, especially when grown at comfortable temperatures (25°C) and neutral pH levels in wastewater-like solutions. This research suggests fungi could offer an affordable, environmentally-friendly way to clean up nicotine contamination in water systems, which is important since traditional wastewater treatments don’t completely remove nicotine.

Harnessing pycnidia-forming fungi for eco-friendly nanoparticle production, applications, and limitations

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Certain types of fungi can produce tiny metal particles called nanoparticles that have useful properties. These fungi-made nanoparticles can kill bacteria, fight cancer cells, clean pollutants from water and soil, and be used in medicines and agriculture. Unlike traditional chemical methods for making nanoparticles, using fungi is cleaner and safer for the environment, though scientists still need to understand more about how they work and ensure they are safe to use widely.

Exploring metal bioaccumulation ability of boreal white-rot fungi on fiberbank material

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This study examined how different types of fungi can absorb toxic metals from polluted sediments in the Baltic Sea caused by old paper mills. Researchers tested 26 native Swedish fungi species and found that Phlebia tremellosa was especially effective at absorbing various toxic metals like zinc, cadmium, and copper. These findings suggest that fungi could be used as a natural way to clean up contaminated waterways, offering a sustainable solution to an environmental problem affecting Nordic countries.

Electricity generation and oxidoreductase potential during dye discoloration by laccase-producing Ganoderma gibbosum in fungal fuel cell

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Scientists used a special fungus called Ganoderma gibbosum to clean contaminated water and generate electricity at the same time. The fungus produces an enzyme called laccase that breaks down textile dyes while the fuel cell converts the chemical energy into electrical power. This eco-friendly technology could help industries treat wastewater while producing clean energy, offering a sustainable alternative to traditional chemical treatment methods.

Pb immobilization by phosphate-solubilizing fungi and fluorapatite under different Mn2+ concentrations

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Researchers studied how two types of beneficial fungi (Aspergillus niger and Penicillium chrysogenum) can remove dangerous lead contamination from environments. By adding the mineral fluorapatite and controlling the level of manganese in the growth medium, they found that Aspergillus niger was much more effective at capturing and permanently locking up lead particles, preventing them from leaching back into the environment. The optimal amount of manganese (7.5 mg/L) significantly boosted the fungi’s production of organic acids that capture lead, making this an environmentally friendly solution for cleaning polluted sites.

Research Keyword: Environmental remediation