This study examines a water-based system, coupling an adsorber and a photoreactor, for regeneration of granular activated carbon (GAC) saturated with acetone and isopropyl alcohol (IPA). Through water recirculation the regeneration reaction was operated in both intermittent and continuous ultraviolet illumination modes. With a periodic dosage of hydrogen peroxide not only was regeneration effic...

This study investigated the effect of oxides on removal As when present in simple mixtures with granular activated carbon (GAC) particles. The performance these was compared other reported GAC-based adsorbents. A standard curve for ultraviolet adsorption vs. concentration obtained using silver diethyldithiocarbamate (SDDC) method to evaluate various samples. preliminary carried out find optimal...

Micropollutants have been increasingly detected at low concentrations in surface waters and may harmful effects on humans, organisms, the environment. As wastewater treatment plants are one of main sources micropollutants, conventional methods (mainly to three cleaning stages) must be improved through an advanced (fourth) stage. The optimal fourth stage should determined based not only removal ...

Wastewater treatment plants (WWTPs) have been identified as important point sources of micropollutants and microplastics into the environment. Existing fourth cleaning steps are designed to remove dissolved micropollutants, however do not target dispersed solids such microplastics. Therefore, ability an Advanced Oxidation Process (AOP) Granular Activated Carbon (GAC) in parallel serial connecti...

The Rietvlei Water Treatment Plant was extended with a granular activated carbon (GAC) filtration system after an exhaustive series of tests, which were started in 1994. Upon commissioning towards the middle of 1999, a year of close monitoring followed to measure the GAC performance at full-scale. After verification that the GAC does indeed ensure a high quality product under all conditions, th...

This work aims to shed light on the scale-up a combined electrokinetic soil flushing process (EKSF) with permeable reactive barriers (PRB) for treatment of spiked clopyralid. To do this, remediation tests at lab (3.45 L), bench (175 L) and pilot (1400 scales have been carried out. The PRB selected was made merged particles zero valent iron (ZVI) granular activated carbon (GAC). Results show tha...

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...