activated carbons sorbent Articles

  • Producing carbon sorbents at solid-fuel CHPS as an element in environmental protection strategies for power engineering

    Prospects are considered for the general use of carbon sorbents for treating water in power engineering, and a demonstration is given of the desirability of making them in a specialised part of the production cycle at CHPS.Keywords: Carbon sorbents, thermal coal processing pyrolysis unit, semicoke, solid-fuel power plant, brown coal semicoke ASBC (ABM), FBCC (BKM), ACBC (ABD), activation, ...


    By Inderscience Publishers

  • Positioning activated carbon amendment technologies in a novel framework for sediment management

    Contaminated sediments can pose serious threats to human health and the environment by acting as a source of toxic chemicals. The amendment of contaminated sediments with strong sorbents like activated carbon (AC) is a rapidly developing strategy to manage contaminated sediments. To date, a great deal of attention has been paid to the technical and ecological features and implications of ...


    By John Wiley & Sons, Ltd.

  • Sorption of DOM and hydrophobic organic compounds onto sewage-based activated carbon

    Treatment of stormwater via sorption has the potential to remove both colloidal and dissolved pollutants. Previous research shows that activated carbon produced from sewage sludge is very efficient in sorbing hydrophobic organic compounds (HOCs), frequently detected in stormwater. The aim of this research was to determine whether the presence of dissolved organic matter (DOM) has a negative ...


    By IWA Publishing

  • In Situ Sediment Treatment Using Activated Carbon: A Demonstrated Sediment Cleanup Technology

    This paper reviews general approaches for applying activated carbon (AC) amendments as an in situ sediment treatment remedy. In situ sediment treatment involves targeted placement of amendments using installation options that fall under two general approaches: 1) direct application of a thin layer of amendments (which potentially incorporate weighting and/or binding materials) to surface ...


    By John Wiley & Sons, Ltd.

  • Adsorption of four perfluorinated acids on non ion exchange polymer sorbents

    Perfluorinated compounds (PFCs) have attracted global concern due to their ubiquitous distribution and properties of persistence, bio accumulation and toxicity. The process of adsorption has been identified as an effective technique to remove PFCs in water. Different non ion-exchange polymeric adsorbents were tested with regard to their sorption kinetics and isotherms at low PFCs concentrations. ...


    By IWA Publishing

  • Comparative performance of cement kiln dust and activated carbon in removal of cadmium from aqueous solutions

    This study compared the performance of cement kiln dust (CKD) as industrial byproduct and commercially activated carbon (AC) as adsorbent derived from agricultural waste for the removal of cadmium (Cd2+) from aqueous solutions. CKD and AC were characterized by Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) and surface areas demonstrate the differences of ...


    By IWA Publishing

  • Modeling of heavy metals removal from aqueous solution using activated carbon produced from cotton stalk

    Activated carbon produced from cotton stalks was examined for the removal of heavy metal contaminants. Adsorption studies in completely mixed batch reactors were used to generate equilibrium pH adsorption edges. Continuous flow experiments using the activated carbon in fixed beds were conducted to determine heavy metal breakthrough versus bed volumes treated. At given pH value in the range ...


    By IWA Publishing

  • Observations of limited secondary effects to benthic invertebrates and macrophytes with activated carbon amendment in river sediments

    Amendment of activated carbon to sediments has been shown to effectively reduce the bioavailability of hydrophobic organic contaminants, but concerns have been raised about the potential toxicological impacts of administering a strong sorbent into sediments. The present study provides a summary of several investigations carried out as part of a pilot‐scale study in a river to understand the ...


    By John Wiley & Sons, Ltd.

  • Organic pollution removal from coke plant wastewater using coking coal

    Coke plant wastewater (CPW) is an intractable chemical wastewater, and it contains many toxic pollutants. This article presents the results of research on a semi-industrial adsorption method of coking wastewater treatment. As a sorbent, the coking coal (CC) was a dozen times less expensive than active carbon. The treatment was conducted within two scenarios, as follows: (1) adsorption after ...


    By IWA Publishing

  • Mercury Control Demonstrations

    C1.1 | Halogens and Sulfur in Coals and their Influence on Co-benefit Mercury Capture Bernhard Vosteen | President, Vosteen Consulting Gmbh Not only the range of the coal mercury content itself, but also the range of the native halogen and sulfur contents in coal are of great influence on co-benefit mercury capture, wet and dry. The ...

  • Polyparameter linear free energy relationship for wood char‐water sorption coefficients of organic sorbates

    Black carbons (BCs), including soots, chars, activated carbons, and engineered nanocarbons, have different surface properties, but we do not know to what extent these affect their sorbent properties. To evaluate this for an environmentally ubiquitous form of BC, biomass char, we probed the surface of a well‐studied wood char using 14 sorbates exhibiting diverse functional groups and then fit ...


    By John Wiley & Sons, Ltd.

  • Retention of 2,4,6-trinitrotoluene and heavy metals from industrial waste water by using the low cost adsorbent pine bark in a batch experiment

    Pine bark is a low cost sorbent originating from the forest industry. In recent years, it has been found to show promise as an adsorbent for metals and organic substances in contaminated water, especially landfill leachates and storm water. This study aims to investigate if pine bark can replace commercial adsorbents such as active carbon. An industrial effluent, collected from a treatment plant ...


    By IWA Publishing

  • Difficult Complex Decisions For Coal-fired Power Plant Operators

    Changing fuel prices, government regulations and technology all combine to make decision making difficult for operators and developers of coal-fired power generation facilities around the world. Power plant designers in developing countries face new local environmental regulations plus additional requirements stipulated by lenders such as the World Bank. In the developed world, the regulations ...


    By The McIlvaine Company

  • TVOC measurement for LEED/green building evaluation

    Total Volatile Organic Compounds (TVOC) may be evaluated when building designers/managers are pursuing the Leadership in Energy and Environmental Design Green Building Rating System for New Construction (LEED-NC) EQ Credit 3.2. The latest LEED-NC guidance document specifies that the maximum allowed concentration of TVOC measured in a building (post construction, pre-occupancy) is 500 µg/m3; the ...


  • Luminant Oak Grove Power Station - Case Study

    Powering Texas Luminant, a subsidiary of Energy Future Holdings Corp. (EFH) -which owns competitive and regulated energy subsidiaries in Texas -is the largest electricity generator in Texas. Unit two of the Oak Grove Power plant near Franklin in Robertson County, TX went online in the middle of 2010. Fluor, the project’s EPC company, completed the plant in 35 months and used ...

  • Air Monitoring for the Gulf Oil Spill

    Ambient air monitoring is a priority in the ongoing efforts to contain and manage the oil spill from the Deepwater Horizon in the Gulf of Mexico. The following provides information about the kinds of airborne contaminants that are currently being monitored in the Gulf, how they are collected and how they are analyzed. For a given project, a suitable sampling plan – developed by ...


  • EPA Proposed “Franken-MACT” for Utilities

    EPA published the highly anticipated proposed Maximum Available Control Technology (MACT) Standard for the utility sector (40 CFR 63 Subpart UUUUU). When considered together with the growing list of proposed and final rules impacting the utility sector (Transport Rule/Cross-State Rule, Coal Combustion Byproducts Rule, Cooling Water Intake Rule, Regional Haze Rule, revised National Ambient Air ...


    By Trinity Consultants

  • Fact sheet: EPA mercury rules and power reliability

    New rules from the U.S. Environmental Protection Agency to reduce mercury and other toxic air emissions will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will EPA mercury rules influence the ...

  • EPA proposes updates to CISWI rules

    On June 4, 2010, the U.S. EPA proposed updates to the Standards of Performance for New Stationary Sources (NSPS) for Commercial and Industrial Solid Waste Incineration (CISWI) Units (NSPS Subpart CCCC) and Emission Guidelines (EG) for Existing CISWI Units (EG Subpart DDDD), collectively referred to as the "CISWI Rules." In order to describe the proposed updates to the CISWI Rules, it is necessary ...


    By Trinity Consultants

  • EPA mercury rules: Keeping the lights on while removing toxics from our air

    Next week the U.S. Environmental Protection Agency is expected to finalize new rules to reduce mercury and other toxic air emissions that will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will new EPA ...

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