Arsenic is of concern in water treatment because of its health effects. This research focused on incorporating hydrous ferric oxide (HFO) into granular activated carbon (GAC) for the purpose of arsenic removal. Iron was incorporated into GAC via incipient wetness impregnation and cured at temperatures ranging from 60 to 90 degrees C. X-ray diffractions and arsenic sorption as a function of pH w...

Biological desulfurization processes of landfill gas yield an enormous amount biologically produced S (BPS) as a byproduct. Capability BPS to remove Cd2+ from aqueous solutions was tested and its removal efficiency compared that granular activated carbon (GAC). Kinetics by two-stage process with initial rapid adsorption showing 45% removed within 5 min, followed slower adsorption. Cadmium onto ...

Abstract Novel cost-effective catalyst granular activated carbon (GAC)-based zinc ferro nanocomposites for the heterogeneous Fenton's oxidation of dye were synthesized using bioleached laterite iron (BLFe) as a precursor and Psidium gujava leaf extract. Synthesized characterized SEM, EDS, XRD BET surface area analysis. The degradation Rhodamine was carried out with adsorption–Fenton's process. ...

Current water treatment technologies are inefficient at treating water contaminated with metaldehyde, an 8-member cyclic tetramer of acetaldehyde widely used as a molluscicide in large-scale agriculture and in gardens, and which has been frequently observed to breach European regulatory limits in the UK due to its high solubility and frequent use. Here, we examine the controls on metaldehyde ad...

ranular activated carbon (GAC) adsorption has been identified by the Safe Drinking Water Act amendments of 1986 as the best available technology for removing synthetic organic contaminants (SOCs) from drinking water supplies.1 GAC is particularly suited for treating water because it effectively removes a wide range of organic compounds and can protect water supplies from such transient occurren...

Due to its high oil content, the discharge of bilge water from ships is one most important pollutants in marine ecosystem. In this research, we investigated treatment for Haydarpasa Waste Collection Plant by Fenton oxidation followed granular activated carbon (GAC) adsorption. We applied following optimum operational conditions oxidation: [Fe2+]: 6 mM; [H2O2]: 30 and ratio [Fe2+]/[H2O2]: 1/5. A...

Granular activated carbon-based, iron-containing adsorbents (As-GAC) were developed for effective removal of arsenic from drinking water. Granular activated carbon (GAC) was used primarily as a supporting medium for ferric iron that was impregnated by ferrous chloride (FeCl2) treatment, followed by chemical oxidation. Sodium hypochlorite (NaClO) was the most effective oxidant, and carbons produ...

Adsorption process is widely used for the removal of wastewater contaminants. Classic adsorption units are fixed beds and membrane filtration systems. In this work a novel configuration bench scale spinning adsorber submerged filter proposed. Different prototypes cylindric, truncated cone or prismatic adsorbers were studied using activated carbon different particle sizes GAC (1.5 mm, Granulated...

Municipal water recycling may expose humans and the environment to trace organic contaminants. We assessed biological activated carbon (BAC) filtration for removal of organic micropollutants (MPs). Adsorption experiments were carried out in batch reactors containing secondary effluent and new granular activated carbon (GAC) and preloaded BAC media. Results show that BAC has good potential for r...