In this study, manganese (Mn II) was determined in aqueous media by an electrochemical method, and its removal was evaluated using the aeration-filtration process (AFP). An electrochemical sensor based on carbon paste (EPC) modified with the ligand 5-Br-PADAP was used to measure Mn (II) in aqueous media. Through the optimization of analytical parameters in cathodic stripping voltammetry (CSV), real boreholes and well water samples could be analyzed for manganese content. The optimum parameters such as pre-concentration potential: 1100 mV, pre-concentration time: 240s, 5-Br-PADAP ligand

In this work, activated carbon (AC) derived from powder of date palm fibers (DPF) was examined as an adsorbent for removing polypropylene nanoplastics (PPNPs) from aqueous solutions. The adsorbent was characterized using XRD, FT-IR, and SEM analyses. Affecting parameters on removal efficiency in a batch reactor, such as contact time, concentration of PPNPs and amount of adsorbent, were evaluated and optimized. Equilibrium and kinetic studies are performed to understand adsorption mechanisms. In the batch system, 30 mL of polypropylene suspension (5-40 mgL^-1) was added to

In this research, according to the high amount of sludge in a petrochemical company, an iron package type of drying sludge bed was made/designed with carbon steel. Then, the drying sludge pond was filled with layers of sand with different mesh sizes. The excess sludge from the sedimentation pond was passed over this bed, and the amount of sludge removed by the bed was obtained at %96. The values of heavy metal and microbial forms were determined using the proposed method based on activated sludge after wastewater treatment. The heavy metal was analyzed using polarography and atomic

Carbon monoxide is one of the main air pollutants, mainly produced from the incomplete combustion of fossil fuels.  This study aims to oxidize carbon monoxide by copper oxide nanoparticles immobilized on zeolite13X substrate.The present study was conducted to determine the effect of carbon monoxide concentration parameters (in the range of 200-1400 ppm) and reaction temperature (in the range of 100-500 °C) on the efficiency of carbon monoxide conversion by CuO/Zeolite 13X nanocatalyst. The design of the experiment and the determination of the number of experiments

A simple and sensitive procedure has been established for analyzing mercury (II) ions spectrophotometrically in the presence of micellar medium using three azo-thiazoles complexing reagents: 2-amino-6-(thiazole-2-yldiazenyl)-3-pyridinol (C₈H₇N₅OS), 8-hydroxy-7-(thiazole-2-yldiazenyl) quinoline-5-sulfonic acid (C₁₂H₈N₄O₄S₂), and 1-hydroxy-4-(thiazole-2-yldiazenyl)-2-naphthoic acid (C₁₄H₉N₃O₃S). H1 NMR spectra validated the three azo thiazoles synthesized

The effect of surface coating against RO membrane over TiO₂-NPs incorporated with chitosan (TiO₂-NPs/chitosan) membrane was evaluated to obtain a simple method to fabricate RO membrane for enhanced performance on seawater desalination. The impact of surface coating on the chitosan membrane performance in seawater reverse osmosis (SWRO) was investigated by altering the mass of TiO₂-NPs (0.25 g and 0.5 g) used for the surface coating RO membrane. TiO₂-NPs were applied to the membranes using a surface coating technique and dried to create a sturdy

In this study, manganese (Mn II) was determined in aqueous media by an electrochemical method, and its removal was evaluated using the aeration-filtration process (AFP). An electrochemical sensor based on carbon paste (EPC) modified with the ligand 5-Br-PADAP was used to measure Mn (II) in aqueous media. Through the optimization of analytical parameters in cathodic stripping voltammetry (CSV), real boreholes and well water samples could be analyzed for manganese content. The optimum parameters such as pre-concentration potential: 1100 mV, pre-concentration time: 240s, 5-Br-PADAP ligand

In this work, activated carbon (AC) derived from powder of date palm fibers (DPF) was examined as an adsorbent for removing polypropylene nanoplastics (PPNPs) from aqueous solutions. The adsorbent was characterized using XRD, FT-IR, and SEM analyses. Affecting parameters on removal efficiency in a batch reactor, such as contact time, concentration of PPNPs and amount of adsorbent, were evaluated and optimized. Equilibrium and kinetic studies are performed to understand adsorption mechanisms. In the batch system, 30 mL of polypropylene suspension (5-40 mgL^-1) was added to

In this research, according to the high amount of sludge in a petrochemical company, an iron package type of drying sludge bed was made/designed with carbon steel. Then, the drying sludge pond was filled with layers of sand with different mesh sizes. The excess sludge from the sedimentation pond was passed over this bed, and the amount of sludge removed by the bed was obtained at %96. The values of heavy metal and microbial forms were determined using the proposed method based on activated sludge after wastewater treatment. The heavy metal was analyzed using polarography and atomic

Carbon monoxide is one of the main air pollutants, mainly produced from the incomplete combustion of fossil fuels.  This study aims to oxidize carbon monoxide by copper oxide nanoparticles immobilized on zeolite13X substrate.The present study was conducted to determine the effect of carbon monoxide concentration parameters (in the range of 200-1400 ppm) and reaction temperature (in the range of 100-500 °C) on the efficiency of carbon monoxide conversion by CuO/Zeolite 13X nanocatalyst. The design of the experiment and the determination of the number of experiments

A simple and sensitive procedure has been established for analyzing mercury (II) ions spectrophotometrically in the presence of micellar medium using three azo-thiazoles complexing reagents: 2-amino-6-(thiazole-2-yldiazenyl)-3-pyridinol (C₈H₇N₅OS), 8-hydroxy-7-(thiazole-2-yldiazenyl) quinoline-5-sulfonic acid (C₁₂H₈N₄O₄S₂), and 1-hydroxy-4-(thiazole-2-yldiazenyl)-2-naphthoic acid (C₁₄H₉N₃O₃S). H1 NMR spectra validated the three azo thiazoles synthesized

The effect of surface coating against RO membrane over TiO₂-NPs incorporated with chitosan (TiO₂-NPs/chitosan) membrane was evaluated to obtain a simple method to fabricate RO membrane for enhanced performance on seawater desalination. The impact of surface coating on the chitosan membrane performance in seawater reverse osmosis (SWRO) was investigated by altering the mass of TiO₂-NPs (0.25 g and 0.5 g) used for the surface coating RO membrane. TiO₂-NPs were applied to the membranes using a surface coating technique and dried to create a sturdy