hexavalent chromium requirement Articles

  • Deadly Hexavalent Chromium in Soil

    Merging technologies will change over Hexavalent Chromium in soil to Trivalent Chromium, effectively stopping Hexavalent Chromium from becoming dangerously airborne or becoming even more deadly by migrating into the water table. There are three valences of Chromium: 1) Chromium—safe to humans, 2) Trivalent Chromium—safe and an essential element in humans and 3) Hexavalent ...


    By ABCOV Companies

  • Osha issues final standard on hexavalent Chromium

    After years of trying to craft an exposure standard for hexavelant chromium that would stand up under expected court challenges, the Occupational Safety and Health Administration (OSHA) issued a final standard on February 28, 2006 which became effective on May 29, 2006. Under the standard, the Permissible Exposure Limit (PEL) for exposure to hexavalent chromium will be lowered from 52 to 5 ...


    By Atlantic Environmental, Inc.

  • Is Hexavalent Chromium (Hex Chrome; Chrome VI) a carcinogen?

    In 1990, the International Agency for Research on Cancer (IARC), an agency of the World Health Organization (WHO), published their findings on chromium and chromium compounds as carcinogens.  Chromium may be isolated in any of three volume states: Chrome 0 or metallic chromium; Chrome III called “Chrome 3” or Chrome VI called “Chrome 6,” also called hexavalent ...


    By Atlantic Environmental, Inc.

  • Characteristics and kinetics of hexavalent chromium reduction by gallic acid in aqueous solutions

    Gallic acid (GA) is a naturally occurring plant polyphenol compound. Experiments were conducted to study the kinetics and effects of pH, temperature, irradiation, and initial hexavalent chromium (Cr(VI)) concentration on Cr(VI) reduction by GA. Results indicated that Cr(VI) could be reduced to chromium oxide (Cr(III)) with GA in a wide range of pH values from 2.0 to 8.5. The reaction followed a ...


    By IWA Publishing

  • Determination of hexavalent chromium in toys by using UV/Vis Spectrometry

    Toy safety is a joint responsibility among governments, the toy industries, regulatory bodies and parents. The toy safety regulations are intended to reduce potential risks children could be exposed to when playing with toys. Enforcement of the regulations aims to identify those toys that do not comply with the legislation and remove them from the market. The toxic elements that may be present in ...


    By PerkinElmer, Inc.

  • Chromium detection in water and soil...

    What is chromium? Chromium is a metal that is widely distributed in the earth’s crust (soil and rocks), air and water. Naturally occurring chromium occurs mainly in the chromium (III) form as chromite ore, which contains oxygen, chromium (III) and other metals such as iron. Chromium (VI) compounds are produced commercially from chromite ore for a wide variety of uses. ...


    By Camlab Limited

  • Case study: How to purify Hexavalent Chrome Wastewater

    We all talk about priority pollutants, about hazardous substances and discharge to the atmosphere etc. which are dangerous for our environmental. Day by day we adopt new laws and regulations to protect our green future. So, what is that “priority pollutants”? Priority pollutants are highly toxic chemicals. The list of these chemicals is quite large and includes thousands of items but ...


    By PC GlobeCore

  • Data Requirements for Soil, Sediment, and Sludge

    Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...

  • CETCO scores a perfect 10 with RM-10 - eliminating hazardous waste disposal

    CETCO Oilfield Services’ Industrial Wastewater Treatment Division has over 30 years experience in treating industrial wastewater, helping clients meet compliance requirements and reduce costs. Additionally, CETCO Oilfield Services’ RM-10® flocculant has been successfully applied in the aerospace sector, turning a previously hazardous waste product into a delisted sludge. The aerospace facility ...


    By CETCO Energy Services

  • Monitoring heavy metals for compliance with RoHS and WEEE directives

    The rapid expansion in the quantity of used electronic and electrical appliances has created a need to safely dispose of the used equipment. The European Community has introduced regulations to enforce limits on the amount of toxic metals and organic chemicals used in the production of material. Compliance with the regulations will help prevent hazards for future generations when the equipment is ...


  • Regulatory Developments - ALJ Decision Imposing Large Fine for TSCA Section 8(e) Penalty May Provide New Guidance on What Constitutes Corroborative Information under Section 8(e)

    On November 12, 2013, the United States Environmental Protection Agency (EPA) released an Administrative Law Judge (ALJ) decision ordering Respondent Elementis Chromium Inc., f/k/a Elementis Chromium, LP (Elementis or Company), to pay a $2,571,800 civil penalty for violating Section 8(e) and Section 15(3)(B) of the Toxic Substances Control Act (TSCA). The decision is available ...


    By Bergeson & Campbell, P.C.

  • Metals Stabilization Using Geochemical Fixation

    Introduction To Chemical Fixation There are several approaches to treatment of chromium and other toxic metals such as lead arsenic, and cadmium in soil and groundwater, including isolation, immobilization, toxicity reduction, physical separation, and extraction (U.S. EPA. 2002). Brief Overview Of Metals Remediation Methods: Conventional ...


    By Graus Chemicals, LLC

  • Characteristic of wastewater and their analysis

    Wastewater containing chromium and other heavy metals, is highly toxic effluents which require high-quality and efficient purification. Such effluents formed during electroplating, other types of chemical, electrochemical surface treatment of metal products such as chromium-plating, nickel-plating, copper-plating, zinc-plating, cadmium-plating and also during some technological ...


    By GlobeCore GmbH

  • Metal finishing - Columbia manufacturing company - case study

    Application Columbia Manufacturing Company of Westfield, Massachusetts began producing bicycles in 1877. The company, while still producing bicycles, transitioned its core product line to institutional furniture with chrome plated bases made from tubular steel. Large amounts of potable water were required for the old plating system. The company was using 180,000 gallons of potable water a ...


  • Welding fume hazards

    Welding is tough work.  Not many who begin as welders retire as welders.  Eventually practically every welder develops cataracts.  Neck and back problems are also a foregone conclusion. There is also a long list of possible health problems depending on the type of welding.  Recently, the Occupational Health and Safety Administration (OSHA) identified hexavalent chromium as a ...

  • Biosorption of cr (vi) by resting cells of aspergillus sp.

    Hexavalent chromium (Cr (VI)) is one of the major pollutants in the environment and is frequently present in wastewaters from industries such as dyes, electroplating, metal cleaning, leather industries, plating, photography, tanneries etc. The conventional treatment techniques used for removal of Cr (VI) ions from wastewaters are expensive and result in the production of harmful by-products and ...


    By University of Tehran

  • February 2006 - Regulatory Update

    The Onyx Environmental Services - Environmental, Health, Safety, and Transportation department is pleased to present the Monthly Regulatory Update. The update contains a brief summary of the proposed and final rules from EPA, OSHA, and DOT published in the Federal Register in the past calendar month. If you have any questions, comments, or suggestions regarding the Monthly Regulatory Updates, ...

  • Product stewardship grows globally

    Product stewardship can be expressed in many ways, and there’s no single best definition. According to the U. S. Environmental Protection Agency (EPA), “[p]roduct stewardship is a product-centered approach to environmental protection. Also known as extended product responsibility (EPR), product stewardship calls on those in the product life cycle -- manufacturers, retailers, users and disposers ...


    By Bergeson & Campbell, P.C.

  • Wastewater sterilization (purification): completely new method “vortex layer machine”

    The purification and safe disposal (neutralization) of industrial waste water effluents represent a very important ecological problem. The principal problem or requirement involves reducing the concentration of harmful impurities to concentration levels below their maximum allowable concentration limits. In fulfilling this requirement the amount of fresh water consumption needed to maintain the ...


    By GlobeCore GmbH

  • Legal Lookout: RoHS, WEEE and Related EU Directives

    Product stewardship is becoming increasingly important as international regulatory requirements involving product lifecycles become more prevalent. In Europe, several directives are likely to influence global product stewardship. Background Environmental regulation traditionally has focused on regulating manufacturing facilities by limiting or preventing environmental releases and related ...


    By Bergeson & Campbell, P.C.

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