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61,005 resultsShowing papers similar to Efektivitas Tepung Cangkang Telur Ayam Sebagai Adsorben Dengan Variasi Ketebalan Media Untuk Menurunkan Kadar Kadmium Pada Larutan Pupuk
ClearTeksti̇l Atiksularindaki̇ Boyarmaddeni̇n Adsorpsi̇yon Yöntemi̇ İle Gi̇deri̇mi̇
Researchers investigated adsorption of indigo dye from textile wastewater using walnut shell as a low-cost adsorbent, testing performance across varying concentrations to remove dyes that resist biological treatment. The study demonstrates walnut shell as an economical and effective alternative adsorbent for color removal from textile industry effluents.
A review on adsorption characteristics and influencing mechanism of heavy metals in farmland soil
Researchers reviewed the characteristics and mechanisms of heavy metal adsorption in farmland soil, examining factors including soil heterogeneity, physical and chemical properties, competitive adsorption, and external influences. The study highlights that soil adsorption reduces crop uptake of pollutants like lead and cadmium, providing a natural self-purification capacity for contaminated agricultural land.
Kualitas fisik telur ayam ras yang direndam dalam larutan teh hijau (Camellia Sinensis) komersial
Soaking chicken eggs in a 40% commercial green tea solution was found to best preserve physical quality during storage, with the treatment significantly reducing egg weight loss and maintaining a higher protein index compared to higher concentrations or no treatment.
Adsorptive Removal of Malachite Green Dye onto Coal-Associated Soil and Conditions Optimization
Researchers investigated the adsorptive removal of malachite green dye from water using coal-associated soil as an adsorbent, characterising the material by SEM and FTIR and optimising batch parameters including adsorbent dose, pH, temperature, and contact time to achieve maximum dye removal.
Adsorption characteristics of cadmium onto microplastics from aqueous solutions
Laboratory adsorption experiments characterized how cadmium is taken up by microplastics of different polymer types from aqueous solutions, finding adsorption capacity varied significantly with polymer chemistry, particle size, and solution conditions. The results help predict how microplastics in contaminated waterways accumulate and transport cadmium, a highly toxic heavy metal.
Porous Material Synthesis and Chromium (VI) Applications
Researchers synthesized a carbonaceous porous material from sunflower shells using chemical activation and investigated its effectiveness for chromium(VI) removal from aqueous solutions. The study optimized activation parameters and evaluated adsorption performance, demonstrating the potential of agricultural waste-derived carbon for heavy metal remediation.
Effective removal of heavy metal ions (Pb, Cu, and Cd) from contaminated water by limestone mine wastes
Researchers tested limestone mining waste and its heat-treated derivative as low-cost materials for removing lead, copper, and cadmium from contaminated water, finding that calcined (heat-treated) limestone could absorb far higher concentrations of these heavy metals than raw limestone. The results suggest that industrial waste from limestone quarries could be repurposed as an affordable water treatment solution for heavy metal pollution.
Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex
Researchers synthesized a new cobalt-diphenylamine complex and tested it for removing heavy metals like cadmium, lead, and chromium from wastewater. The material showed strong adsorption capacity, with removal efficiency influenced by factors such as pH, dosage, and initial metal concentration. The study suggests this type of metal-organic complex could be an effective tool for treating industrial wastewater contaminated with heavy metals.
Preparation of a cellulose acetate membrane using cigarette butt recycling and investigation of its efficiency in removing heavy metals from aqueous solution
Researchers recycled cigarette butts into cellulose acetate membranes and tested their ability to remove chromium, cadmium, and lead from water using forward osmosis. Both freshly-smoked and unsmoked filter membranes showed effective heavy metal removal, offering a potential dual-benefit approach to cigarette butt waste.
Insights on Immobilization of Cd Contamination in Soil: Synergic Impacts of Water Management and Bauxite Residue
Researchers tested whether combining flooding with bauxite residue or lime could reduce the availability of toxic cadmium in contaminated soil. Both combined treatments raised soil pH and increased the proportion of cadmium locked into stable, residual forms while decreasing the easily exchangeable fraction. The bauxite residue treatment proved slightly more effective at immobilizing cadmium, offering a potential soil remediation strategy for heavy metal-contaminated agricultural land.
Adsorption of Pyrethroids in Water by Calcined Shell Powder: Preparation, Characterization, and Mechanistic Analysis
Researchers developed calcined mussel shell powder as an adsorbent for pyrethroid pesticides in water, optimizing calcination temperature, time, and particle size via Box-Behnken design and characterizing the product using SEM, XRD, FTIR, and BET measurements. The optimized adsorbent — composed primarily of calcium oxide with a loose porous structure — achieved adsorption capacities of 1.05 and 1.79 mg/g with removal efficiencies exceeding 40% and 70% for two tested pyrethroids.
A New Sight of Influencing Effects of Major Factors on Cd Transfer from Soil to Wheat (Triticum aestivum L.): Based on Threshold Regression Model
Researchers applied threshold regression models to investigate how major soil factors including pH, organic matter, and clay content influence cadmium transfer from soil to wheat grain (Triticum aestivum L.), identifying threshold effects that conventional linear models cannot capture. The study found that the influence of pH and other soil variables on cadmium bioaccumulation was non-linear, with critical threshold values above or below which transfer dynamics changed markedly.
Waste materials composited into an adsorbent for landfill leachate treatment
Researchers tested a composite adsorbent made from waste materials for removing heavy metals (Pb, Zn, Cu, Fe), ammonia-nitrogen, and COD from landfill leachate, achieving removal efficiencies up to 96.4% for Pb and optimizing contact time and dosage conditions through batch sorption experiments with Langmuir and Freundlich isotherm modelling.
Effect of Microplastics on the Adsorption and Desorption Properties of Cadmium in Soil
Polyethylene and polypropylene microplastics were found to reduce soil's capacity to adsorb cadmium, a toxic heavy metal, raising concerns that microplastic contamination in farmland soils could increase the mobility and risk of heavy metal pollutants.
Adsorption mechanism of cadmium on microplastics and their desorption behavior in sediment and gut environments: The roles of water pH, lead ions, natural organic matter and phenanthrene
Researchers compared how cadmium adsorbs onto five different microplastic types and then desorbs in simulated sediment and gut environments, finding that pH, competing ions, natural organic matter, and co-pollutants like phenanthrene all significantly alter how much cadmium is released.
Optimising the adsorption characteristics of spent coffee grounds by thermal and chemical activation
Researchers optimized the adsorption properties of spent coffee grounds by testing thermal activation and phosphoric acid treatment, finding that heating at 600°C increased specific surface area by 72% while acid treatment provided further improvements. The study identified conditions for maximum methylene blue dye adsorption, suggesting spent coffee grounds as a potential low-cost water treatment adsorbent.
The Adsorption of Copper, Lead Metal Ions, and Methylene Blue Dye from Aqueous Solution by Pure and Treated Fennel Seeds
Researchers found that pure and acid-treated fennel seeds effectively adsorb copper and lead metal ions and methylene blue dye from aqueous solution, with acid-treated seeds showing enhanced porous surface structure and improved removal efficiency.
PENGARUH LAMA PERENDAMAN DALAM GEL LIDAH BUAYA (Aloe vera) TERHADAP KUALITAS TELUR AYAM RAS
Soaking chicken eggs in aloe vera gel extended their storage life up to 30 days, with significant improvements in egg white index, yolk index, and Haugh unit compared to untreated eggs, though egg weight was not significantly affected by the treatment.