pcb water reagent Articles

  • Analysis of PCB in water using the Dtech test system

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: Color Card: 100 ppb (as aroclor 1254), DTECHTOR meter: 50 ppb (as aroclor 1254) BACKGROUND: This application describes a field screening method for determining PCB concentrations in water. A 1:2 dilution of the sample in methanol is made to minimize adsorptive losses. A ...


  • Analysis of PCB in water using the envirogard test system

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: Aroclor 1248: 1 ppm Aroclor 1260: 2 ppm Aroclor 1242: 2 ppm Aroclor 1254: 1.1 ppm BACKGROUND: This application describes a field screening method for determining PCB concentrations in water. A chemical reaction is induced that causes a color change ...


  • Dehalogenation

    Introduction: Contaminated soil is screened, processed with a crusher and pug mill, and mixed with reagents. The mixture is heated in a reactor. The dehalogenation process is achieved by either the replacement of the halogen molecules or the decomposition and partial volatilization of the contaminants. Base-catalyzed Decomposition (BCD) Base-catalyzed ...

  • A Citizen`s Guide to Chemical Dehalogenation

    What is chemical dehalogenation? Chemical dehalogenation is a chemical process to remove halogens (usually chlorine) from a chemical contaminant, rendering it less hazardous. Halogens are a class of chemical elements that include chlorine, bromine, iodine, and fluorine. Polychlorinated biphenyls are halogenated compounds that once were used in high voltage electrical transformers because they ...

  • Modern treatment methods of strong chelates in surface technology

    In the metal finishing industries strongly bonded chelatants have a long tradition. The superior electrochemical properties of chemicals such as EDTA, NTA, cyanide, polyamines and others, have made these compounds invaluable during the production of plastics and metals. However, some of these compounds can seriously inhibit the ability of a wastewater treatment plant to meet the desired discharge ...


  • In Situ Solidification/Stabilization

    Introduction Solidification/stabilization (S/S) reduces the mobility of hazardous substances and contaminants in the environment through both physical and chemical means. Unlike other remedial technologies, S/S seeks to trap or immobilize contaminants within their 'host' medium (i.e., the soil, sand, and/or building materials that contain them), instead of removing them through chemical or ...

  • Assessment of the Environmental Impact of Military Activities During the Yugoslavia Conflict

    1. Executive Summary Assessment Method:The study was carried out over a period of ten days by a team of expert staff from the Regional Environment Center for Central and Eastern Europe (REC) and other contracted country experts. A framework was prepared by REC headquarters and the REC's country offices in the five selected countries gathered information and data. Additional ...

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