The study of the influence operating parameters dynamic adsorption on fixed-bed column manganese oxoanions (MnO4-) in aqueous media granular activated carbon (GAC), prepared from shells palm nuts Gabon, was carried out. studied were particle size, concentration initial solution (C0) MnO4-, flow rate (D) and pH media. results obtained show that best capacities at saturation (Qsat) MnO4- ion CAG ...

Microorganisms that can transfer electrons outside their cells are useful in a range of wastewater treatment and remediation technologies. Conventional methods enriching exoelectrogens cost-prohibitive (e.g., controlled-potential electrodes) or lack specificity soluble electron acceptors). In this study low-cost simple approach to enrich from mixed microbial inoculum was investigated. After the...

Clean water, which is free from pathogens and toxic chemicals, is vital to human health. The blue planet is encountering remarkable challenges in meeting the ever-increasing demands of clean water. The intention of this research study was to develop a water filter material that is capable of removing bacterial contaminants and heavy metals from fresh water using cost effective and easily fabric...

Microbial electrolysis cells (MECs) can generate methane by fixing carbon dioxide without using expensive catalysts, but the impact of acclimation procedures on subsequent performance has not been investigated. Granular activated carbon (GAC) was used to pre-enrich electrotrophic methanogenic communities, as GAC has been shown to stimulate direct transfer of electrons between different microbia...

Biomethane production by anaerobic digestion is an efficient technology to treat organic waste and produce clean energy. A growing number of studies has attempted use carbon-based materials enhance methane performance. Granular activated carbon (GAC) commonly used due its low price high efficiency. Moreover, the conductivity GAC favors direct interspecies electron transfer (DIET) coupled with C...

Chlorine dioxide is widely used as a pre-oxidant and disinfectant but it has the disadvantage of inducing the formation of the inorganic by-products chlorites and chlorates. It is therefore of interest to decrease the chlorine dioxide demand and oxidation, and/or removal of natural organic matter (NOM). The objective of this study was to estimate the efficiency of the adsorption of oxidised and...

Granular activated carbon (GAC) was used to remove bromide (Br⁻) and bromate (BrO(3)(-)) from drinking water in both bench- and pilot-scale experiments. The present study aims to minimize BrO(3)(-) formation and eliminate BrO(3)(-) generated during the ozonation of drinking water, particularly in packaged drinking water. Results show that the Br⁻ and BrO(3)(-) levels in GAC-treated water decrea...

Soil pollution with heavy metals not only reduces crop yields, but also negatively affects human and animal health. Even such a biophilic element as Zn, when excessively supplied to living organisms, has toxic effect. The introduction of sorbents into the soil makes it possible ensure binding pollutants in situ, leading decrease their mobility biological availability. In course work, efficiency...

Methyl tert-butyl ether (MTBE) has been used as a common gasoline additive worldwide since the late twentieth century, and it has become the most frequently detected groundwater pollutant in many countries. This study aimed to synthesize a novel microbial carrier to improve its adsorptive capacity for MTBE and biofilm formation, compared to the traditional granular activated carbon (GAC). A pol...

Syntrophic degradation of propionate has been regarded as a limiting factor for methane formation in anaerobic digestion (AD) processes, due to its easier production but harder than other volatile fatty acids. In the present study, 20 g/L granular activated carbon (GAC) was introduced into an sequence batch reactor (AnSBR) and enhancement evaluated with another AnSBR without GAC control. Inocul...