Health & Safety Articles

  • A Chemical Dynamics Model for CAH Remediation with Polylactate Esters.

    ABSTRACT: The polylactate esters of sorbitol, xylitol and glycerol are a class of new chemical compounds that slowly release lactic acid into groundwater. The lactic acid is biotransformed into pyruvic acid and subsequently into acetic acid releasing hydrogen in both steps. The hydrogen is used by naturally occurring dechlorinating bacteria to reduce PCE to ethene by way of TCE, DCE and VC. A ...


    By REGENESIS

  • Principles and Practice · Quick-to-Implement Odor Reduction Techniques

    The city of close to one million has already exceeded its 50 percent recycling rate as it prepares to launch a new organics curbside collection program in 2002. SAN JOSE, California recently hit — and exceeded — its 50 percent landfill diversion goal, due in large part to the yard trimmings collection program for its 930,000 residents. The city in the heart of the digital divide has submitted a ...


    By BioCycle Magazine

  • What`s the Plan? - Designing, analyzing and updating your company`s emergency management procedures

    Emergency management is the practice of driving the risk of doing business as close to zero as possible. An emergency can strike any time, without warning. The best way to manage an emergency is to plan for it, practice response procedures and take precautions to avoid dangerous situations. When incidents occur, respond to that emergency efficiently and effectively, perform root cause analysis ...


  • Toxicity Identification Evaluation (TIE) as a Tool for Water Quality Management

    Whole effluent toxicity (WET) testing has evolved into a critical element of many National Pollutant Discharge Elimination System (NPDES) permits issued to both industrial and municipal dischargers. Over 6,500 dischargers to both fresh and salt waters are required to conduct toxicity tests to determine if their effluent might be potentially toxic to organisms in the receiving system. While ...


    By AECOM

  • Rewarding Volunteers: OSHA Issues a Final Voluntary Self-Audits Policy (PDF)

    Over the last five years or so, government agencies have offered an unprecedented number of incentives designed to encourage industrial entities to audit voluntarily their manufacturing operations, and to disclose voluntarily indiscretions they discover through these auditing activities.In July 2000, the Occupational Safety and Health Administration (OSHA) issued its final voluntary self-audit ...


    By Bergeson & Campbell, P.C.

  • Passively Enhanced In-Situ Biodegradation of Chlorinated Solvents

    Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents the results ...


    By REGENESIS

  • TSCA and the Future of Chemical Regulation (PDF)

    Congress enacted the Toxic Substances Control Act (TSCA) in 1976. 1 Despite the passage of over two decades, its core provisions have not been substantively amended. 2 Some believe change is needed, even essential. Indeed, the question of whether TSCA is fundamentally flawed or whether EPA ’ s implementation of it is lacking, has been the ...


    By Bergeson & Campbell, P.C.

  • Cover Page : Building Human Resources Instead of Landfills

     Building Human Resources Instead of Landfills THE Lane County, Oregon affiliate of St. Vincent de Paul (SVDP) — an international Catholic charity — thrives as a nonprofit that acts entrepreneurially. Under the leadership of Terry McDonald, St. Vincent capitalizes on niche market opportunities to convert more than 40 tons/day of discarded products destined to be landfilled into marketable ...


    By BioCycle Magazine

  • Bioremediation of PCB & Pesticide Contaminated Soils Utilizing Gene Expression Factors

     Abstract Historically soils contaminated by persistent organic compounds such as pesticides and PCBs were not considered good candidates for bioremediation due to the simple fact that the chemical industry designed these compounds to withstand the destructive effects of natural attenuation through weathering and microbial activity. Although the chemical industry has long appreciated the ...


  • Bus Pressure Washing Facility Wastewater Case Study

    Industrial Wastewater Treatment Success Stories Bus Washing Facility Waste Water Treatment Astounding Results of Bus Washing Jar Test The sample from ...


    By Integrated Engineers Inc.

  • Process oriented integrated quality management internet services for SMEs PROMIS

    Abstract. Small and Medium Enterprises urgently need tailored business services to support them in overcoming the challenging requirements to operate effectively and safely their ongoing business. The driving force is the need to conform fully to the complex legal and social requirements in the fields of Environment, Health, Safety and Quality (EHS-Q) and to reduce the work overload of the key ...


    By PROMIS@Service Sarl

  • Halliburton Case Study - Halliburton overcomes mission critical hazardous document distribution challenges

    Halliburton, one on the world’s largest providers of products and services to the petroleum and energy industries relies heavily on effective hazardous communications to process approximately 50,000 service orders a day in more than 100 countries. Global access to Material Safety Data Sheets (MSDSs) is mission critical to Halliburton’s operations. Each service vehicle, before leaving for a work ...


    By UL The WERCS

  • Cocomposting at Pearl Harbor

    Cocomposting at Pearl Harbor When the Hawaii Department of Health tightened its restrictions on landfilling biosolids by requiring the lining of sludge drying beds, the U.S. Navy Public Works Center (PWC) at Pearl Harbor decided to look for a less expensive alternative to landfilling. Biosolids composting became the Navy’s answer. A pilot project was started in July, 1997, and the full-scale ...


    By BioCycle Magazine

  • Multifunctional Well Implemented for In Situ Remediation of Hydrocarbon Contaminations in Soil and Groundwater

    Abstract A recently developed Multifunctional Well has been implemented for the remediation of subsurface contamination caused by hydrocarbon spills. Four different remediation processes can be operated within the same well. At optimal efficiency of each remediation process, successive treatment of the capillary fringes, the vadose zone, and the aquifer can be accomplished. Each treatment ...


  • Product comparisons grasspave2 and gravelpave2 vs geoweb

    Presto Products manufactures “Geoblock” and “Geoweb” and have continuously tried to overturn projects specified with our Grasspave2 product since they became licensed to sell a geocell product developed by the US Army Corps of Engineers several years ago. Presto has done this because both of their “Geoblock” grass reinforcement paving products are more ...


    By Invisible Structures, Inc.

  • Engineered approaches to in situ bioremediation of chlorinated solvents: Fundamentals and field applications

    Halogenated volatile organic compounds, including chlorinated solvents, are the most frequently- occurring type of soil and groundwater contaminant at Superfund and other hazardous waste sites in the United States. The U.S. Environmental Protection Agency (EPA) estimates that, over the next several decades, site owners will spend billions of dollars to clean up these sites. New technologies that ...


    By RNAS Remediation Products

  • `Testing VOC Evaporation Losses from Floating Roof Tank Turnover,` published in Oil and Gas Journal, December 10, 2001

    Abstract Air emissions from floating roof tanks have been well characterized and documented by the U.S. Environmental Protection Agency (EPA). The estimation methods have been revised and updated throughout the years. However, an unusual aspect of air emissions from tanks with a floating roof during a tank turnover has not been addressed.  Petroleum storage tank floating roofs are ...


    By Trinity Consultants

  • Estimation of HAP Emissions from Oil and Gas E&P Operation Wastes

    Wastes generated from oil and gas Exploration and Production (E&P) operations contain chemicals that are considered as toxic air pollutants for the purpose of toxic release inventories (TRI) reports or hazardous air pollutants (HAP) under Title III of the 1990 Clean Air Act Amendments. A study was conducted to estimate HAP emissions from E&P waste management operations on a per-event basis. The ...


    By Trinity Consultants

  • `Estimation of HAP Emissions from Oil and Gas E & P Operation Wastes,` presented at AWMA 2000 Conference & Exhibition

    Abstract Wastes generated from oil and gas Exploration and Production (E&P) operations contain chemicals that are considered as toxic air pollutants for the purpose of toxic release inventories (TRI) reports or hazardous air pollutants (HAP) under Title III of the 1990 Clean Air Act Amendments.  A study was conducted to estimate HAP emissions from E&P waste management ...


    By Trinity Consultants

  • High VOC Loadings in Biofilters - Petroleum and Industrial Applications

    ABSTRACTMore cost effective alternate technologies are needed to meet the demands of existing and upcoming Federal air regulations. Bio-Reaction Industries, Inc. (BRI) has developed a patented, modular, high-rate, vapor-phase biofilter that has provided such a solution for a major oil company for the past four years. This compact system has adsorbed and digested high VOC surge concentrations ...


Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you