Research Keyword: water purification

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

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

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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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Biological approaches to mitigate heavy metal pollution from battery production effluents: advances, challenges, and perspectives

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Battery factories produce dirty water containing harmful heavy metals like lead and cadmium. Instead of using expensive chemical treatments, scientists are finding natural ways to clean this water using plants, bacteria, and other living organisms. These biological methods can remove up to 99% of the metals and are better for the environment. This review examines all these natural cleaning methods and suggests ways to make battery production cleaner and safer.

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The effect of calcium on the removal of Cd2+ in the formation of biogenic secondary iron minerals

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Acid mine drainage from mining operations contains toxic cadmium that pollutes water supplies. This research shows that naturally occurring bacteria (Acidithiobacillus ferrooxidans) can help remove cadmium by forming iron minerals. Adding calcium and potassium ions together significantly improves this process, with cadmium being trapped in mineral precipitates rather than just adsorbed to surfaces. This biological approach offers a practical and sustainable method for treating contaminated mining water.

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Biotechnological Applications of Mushrooms under the Water-Energy-Food Nexus: Crucial Aspects and Prospects from Farm to Pharmacy

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Mushrooms are emerging as a powerful solution for solving global food, water, and energy challenges. Scientists are using biotechnology to produce tiny healing particles from mushrooms, clean up polluted soil and water, create renewable energy, and extract beneficial compounds for medicine and health. This review shows how integrated mushroom farming can help achieve sustainable development goals while reducing waste and supporting human wellbeing.

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Biochar from fungiculture waste for adsorption of endocrine disruptors in water

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Researchers developed a new material called biochar from leftover mushroom growing waste that can effectively remove harmful hormones from water. By heating the mushroom waste to 600°C, they created a porous material with a large surface area that can trap and remove synthetic estrogen and progesterone from contaminated water. Testing showed this biochar removed over 95% of these hormones, making it a promising sustainable solution for cleaning water supplies.

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Light-adaptive interfacial solar steam evaporation enhanced by dynamic water gating

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Scientists developed a new type of water purifier powered by sunlight that solves a major problem with previous solar water purifiers: salt buildup. The innovation uses special light-sensitive materials that change how they interact with water depending on whether it’s sunny or dark. When salt builds up on the surface in the dark, the material becomes more water-loving and washes away the salt. When the sun shines, it becomes water-resistant again, focusing on pure water production. This smart material could help provide clean drinking water in coastal regions and reduce reliance on traditional energy-intensive desalination methods.

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