Research Keyword: wastewater treatment

Computer-directed rational engineering of dioxygenase TcsAB for triclosan biodegradation under cold conditions

Scientists engineered a special enzyme called TcsAB to work better at cold temperatures, enabling it to break down triclosan, a harmful antibacterial chemical that pollutes our water. By using computer simulations and strategic mutations, they created a modified enzyme that degrades triclosan 2.5 times more efficiently at 15°C. When inserted into bacteria, this engineered enzyme helps clean up triclosan pollution in natural environments without requiring energy-intensive heating.

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Impact of veterinary pharmaceuticals on environment and their mitigation through microbial bioremediation

Veterinary medicines used in livestock are contaminating our water and soil, creating serious problems like antibiotic-resistant bacteria. Scientists are discovering that natural microorganisms like bacteria and fungi can break down these pharmaceutical pollutants effectively. Advanced technologies combining microbes with electrical systems show promise for cleaning up contaminated wastewater, offering hope for a more sustainable solution to this growing environmental problem.

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Modern-Day Green Strategies for the Removal of Chromium from Wastewater

Chromium from industries like leather tanning and metal plating contaminates water and soil, causing serious health problems including cancer and organ damage. Scientists have developed eco-friendly methods using bacteria, fungi, plants, and agricultural waste to remove chromium from polluted water at low cost. These biological treatment methods are more sustainable and affordable than traditional chemical approaches, offering a promising solution for cleaning up contaminated environments.

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Application of Fungus Enzymes in Spent Mushroom Composts from Edible Mushroom Cultivation for Phthalate Removal

This research shows that leftover mushroom growing material (spent compost) can be used to clean phthalates from wastewater. Phthalates are harmful chemicals found in plastics that can damage human health. Scientists tested four types of mushroom composts and found they all worked, with the best results removing 99% of certain phthalates. This provides an affordable, eco-friendly way to treat polluted water.

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Synthesis of Biogenic Hematite Nanocubes as Recyclable Dark Fenton-like Catalysts at Neutral pH and Plant Growth Applications of Degraded Waste Water

Scientists created tiny iron oxide cubes from lemon peel waste that can remove harmful dyes from industrial wastewater at neutral pH without needing UV light. These nanoparticles work as efficient catalysts and can be recycled multiple times. The cleaned water is safe enough to use for growing plants and shows good antimicrobial properties against harmful bacteria and fungi.

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Editorial: Pharmaceutically active micropollutants – how serious is the problem and is there a microbial way out?

Medicines we take don’t fully disappear—30 to 90% are excreted unchanged and end up in water supplies. These pharmaceutical residues contaminate drinking water and harm aquatic life worldwide. Scientists are discovering that certain fungi and bacteria can break down these drug residues through natural metabolic processes. By harnessing these microbes in treatment systems and improving waste management practices, we could significantly reduce pharmaceutical pollution.

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Novel Alginate-, Cellulose- and Starch-Based Membrane Materials for the Separation of Synthetic Dyes and Metal Ions from Aqueous Solutions and Suspensions—A Review

This review examines new types of environmentally-friendly membranes made from natural plant materials like alginate and cellulose that can effectively remove harmful dyes and heavy metals from polluted water. These sustainable membranes can reject over 95% of contaminants while producing minimal waste, offering a greener alternative to traditional synthetic membrane technology. The materials are biodegradable and can be reused multiple times, making them economically and environmentally advantageous for water treatment applications.

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Bioremediation Potential of a Non-Axenic Cyanobacterium Synechococcus sp. for Municipal Wastewater Treatment in the Peruvian Amazon: Growth Kinetics, Ammonium Removal, and Biochemical Characterization Within a Circular Bioeconomy Framework

Researchers discovered that a cyanobacterium called Synechococcus sp., when grown in diluted municipal wastewater, can effectively clean polluted water by removing 95% of ammonia while simultaneously producing valuable biomass. This dual-purpose approach offers a sustainable solution for wastewater treatment in the Peruvian Amazon, where conventional treatment infrastructure is limited but sunlight and warm temperatures are abundant. The organism produces useful compounds like phycocyanin, which has applications in food coloring, cosmetics, and pharmaceuticals, turning a pollution problem into a resource opportunity.

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The Strategies Microalgae Adopt to Counteract the Toxic Effect of Heavy Metals

Microalgae can help clean water polluted with toxic heavy metals like cadmium and chromium while also producing useful biomass. The review explains how microalgae absorb and trap heavy metals, and describes ways to make them more effective, including adding certain chemicals, selecting resilient strains, and using genetic modification. Combining heavy metal removal with biomass production could make the process cost-effective for real-world applications.

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Copper biosorption by Serratia plymuthica: crucial role of tightly bound extracellular polymeric substances in planktonic and biofilm systems

Researchers discovered that a bacterium called Serratia plymuthica can effectively remove copper from contaminated water using special protective layers of polymers it produces. These polymer layers, especially the protein components, act like tiny magnets that capture copper ions from solution. The study found that when these bacteria form biofilms on porous surfaces, they become even more effective at removing copper from industrial wastewater, achieving up to 97% removal efficiency even under harsh acidic conditions.

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