activated carbon water Articles

  • The Many Uses of Activated Carbon

    Activated carbon is processed to have small, low-volume pores that increase the surface area available for adsorption. It has applications in the medical, environmental and energy realms, among others. Since 1962, ASTM Committee D28 on Activated Carbon has developed standards that play a pre-eminent role in how activated carbon is used. A D28 ...


    By ASTM International

  • What is Activated Carbon?

    Adsorption with activated carbon can apply. The more awareness people have of the Earth, the more applications activated carbons will have. is thus a commonly seen process in applications such as gas masks, space capsules, nuclear plants and so forth, in which the removal of gases is highly needed. ...


    By Cocarb

  • Fundamentals of Catalytic Activated Carbons

    Untitled Document Summary: Catalysts in water treatment speed chemical reactions so equipment can be scaled down or contact times shortened. Because the speed of a reaction ...

  • Top 3 Uses of Activated Carbon

    Activated carbon is an effective purifier. It is used to remove organic pollutants from different gaseous, liquid and solid substances. By removing the undesirable organic compounds, activated carbon can successfully remove the odour and taste of these compounds from a wide range of things.  Unlike other purification agents that react with organic compounds and change their nature, activated ...


    By Nichem Co.

  • Activated Carbon: What it is, how it works

    Untitled Document Summary: In the last decade public awareness and concern over the quality of drinking water has resulted in more and more consumers turning to point-of-use ...


    By Calgon Carbon Corporation

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Activated Carbons from lignocellulosic waste materials for water treatment: a review

    Activated Carbon (AC) adsorbents are commonly used to remove pollutants from water because of their excellent sorption ability. However, commercially available ACs are expensive. In developing countries where economy plays a very big role, it is better to find low-cost locally available precursors, which are renewable resources for the preparation of ACs. This review focuses on ACs prepared from ...


    By Inderscience Publishers

  • Development of efficient characterization parameters for activated carbon used in drinking water treatment

    In many drinking water treatment facilities with an activated carbon (AC) purification step, polar and hydrophilic molecules are substances of concern. Many of the current test methods for AC do not really reflect AC's adsorption capacity for these substances. To develop a fast and economically reasonable parameter that characterizes AC's ability to remove these compounds, three ...


    By IWA Publishing

  • Investigation of surfactant-modified activated carbon for recycled water disinfection

    This study investigated the effectiveness of surfactant-loaded granular activated carbon (GAC) to deactivate total coliform, E. coli, and enterococci found in tertiary effluent under various experimental conditions, i.e. varying surfactant dose, GAC dose, and contact time. The results indicate that GAC loaded with 100 mg/g of hexadecyltrimethylammonium bromide (CTAB) and didodecyldimethylammonium ...


    By IWA Publishing

  • Role of membranes and activated carbon in the removal of endocrine disruptors

    As part of an American Water Works Association Research Foundation (AwwaRF) research project to evaluate conventional and advanced treatment processes for the removal of endocrine disruptors and pharmaceuticals (Project #2758), several experiments were conducted using membranes and activated carbon. A series of dynamic flow-through membrane experiments were performed at pilot- and full-scale to ...


    By Toray Chemical Korea

  • Odor removal by powdered activated carbon (PAC) in low turbidity drinking water

    The potential of powdered activated carbon (PAC) adsorption for odor removal in low turbidity drinking water was investigated. The batch experiments were conducted under various conditions including PAC species, dosage, contact time and dosing point. The effects of pre-chlorination and PAC dosage on turbidity were also studied. Results showed that adsorption was quite vulnerable to initial ...


    By IWA Publishing

  • Removal of bromide and bromate from drinking water using granular activated carbon

    Granular activated carbon (GAC) was used to remove bromide (Br−) and bromate (BrO3−) from drinking water in both bench- and pilot-scale experiments. The present study aims to minimize BrO3− formation and eliminate BrO3− generated during the ozonation of drinking water, particularly in packaged drinking ...


    By IWA Publishing

  • Activated Carbon Applications Excel at PCB Removal

    TIGG’s GAC adsorption equipment is used to remove PCBs from groundwater. For more than 50 years, polychlorinated biphenyls (PCBs) were commonly used in industrial materials including, caulking, cutting oils, inks, paints and as dielectric fluids in electrical equipment such as transformers and capacitors. Concerns over health effects led to a North American ban of ...


    By TIGG, LLC

  • Comparison between activated carbon and multiwall carbon nanotubes in the removal of cadmium(II) and chromium(VI) from water solutions

    This paper evaluates the aqueous cadmium(II) and chromium(VI) adsorption efficiency on multiwall carbon nanotubes and activated carbon (AC). The effects of pH, initial metal ion concentrations, and adsorbent dosage on the adsorption of heavy metal by carbon adsorbents were also evaluated. In addition, this study used the Langmuir and Freundlich isotherms to describe behavior of equilibrium ...


    By IWA Publishing

  • Removal of bromate and natural organic matter by using biologically activated carbon

    The removal of bromate and Natural Organic Matter (NOM) during the transition from fresh GAC to BAC was investigated by using two GAC filters with different type of GAC. The removal of bromate, nitrate, NOM in GAC filter apparently decreased during the transition. Although high level of anions and NOM, and high pH value may greatly affect bromate reduction in GAC filter, in initial period one GAC ...


    By Inderscience Publishers

  • Distribution of iron in activated carbon composites: assessment of arsenic removal behavior

    The main objectives of this study were to evaluate the effectiveness of using iron impregnated granular activated carbon (AC) to remove arsenic from water and to assess the partitioning behavior of arsenic under a variety of conditions. Iron impregnated granular activated carbon (AC-Fe) composites were prepared with different ferric (Fe+3) concentrations, ranging from 0.09 to 3.0 M. These ...


    By IWA Publishing

  • RO brine treatment and recovery by biological activated carbon and capacitive deionization process

    The generation of brine solutions from dense membrane (reverse osmosis, RO or nanofiltration, NF) water reclamation systems has been increasing worldwide, and the lack of cost effective disposal options is becoming a critical water resources management issue. In Singapore, NEWater is the product of a multiple barrier water reclamation process from secondary treated domestic effluent using ...


    By IWA Publishing

  • Phenol adsorption by activated carbon produced from spent coffee grounds

    The present work highlights the preparation of activated carbons (ACs) using spent coffee grounds, an agricultural residue, as carbon precursor and two different activating agents: water vapor (ACW) and K2CO3 (ACK). These ACs presented the microporous nature and high surface area (620–950 m2 g−1). The carbons, as well as a commercial activated carbon (CAC) used as reference, were evaluated as ...


    By IWA Publishing

  • Quantitative structure property relationships for the adsorption of pharmaceuticals onto activated carbon

    Isotherms were determined for the adsorption of five pharmaceutical residues, primidone, carbamazepine, ibuprofen, naproxen and diclofenac, to Calgon Filtrasorb 300 powdered activated carbon (PAC). The sorption behavior was examined in ultra-pure and wastewater effluent organic matter (EfOM) matrices, where more sorption was observed in the ultra-pure water for PAC doses greater than 10 mg/L ...


    By IWA Publishing

  • Ozonation and Granular Activated Carbon Filtration the Solution to Many Problems

    This paper explains how ozone is used in the purification of surface water to potable water both as the first treatment stage and as an intermediary stage for the reduction of organics and as a disinfectant. Taste and odour of the water are improved by the oxidation of both organic and inorganic impurities by ozone. Products resulting from algae metabolisms are shown to be easily oxidised by ...

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