confined space Articles

  • Mining Emissions Effectively Monitored with Micro Pulse LiDAR Technology

    Mining operations include blasting, excavating, scraping, and sifting large amounts of dirt. These activities create dust and other emissions that are transported by air currents to surrounding areas. It is easy to say that dangerous particulate matter (PM) generated by mining should be monitored and kept to a minimum; however, it is very challenging to measure the levels of contaminants in the ...

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. ...

  • OSHA - Upcoming Confined Spaces Policy

    OSHA issued the Confined Spaces in Construction final rule on May 4, 2015, but becomes effective August 3, 2015. This is a temporary enforcement policy will be in effect for 60 days. The full enforcement of the new standard will be in effect October 2, 2015. This is to give additional time to train and acquire the equipment necessary to comply with the new standard. For more ...


    By Analytics Corporation

  • Technical training school for future welders

    The Technical Training School for Future Welders is a school designed to develop up-to-date skills in Mig and Tig welding. The Problem: Limited space, the need to recirculate the air to avoid costly heat loss and equipment flexibility and efficiency were paramount requirements. Three separate work locations (stations) were required and the confined space demanded that the equipment be flexible ...


    By Plymovent Group BV

  • Human challenges in polar and space environments

    This paper reviews literature on psychosocial adaptation in isolated and confined extreme (ICE) environments, focusing on polar work groups and expedition teams, and simulation and actual space crews. Long-duration missions may involve chronic exposure to many stressors that can negatively impact behavioral health, performance and even safety. In the last decades, anecdotal evidence has been ...


    By Springer

  • Experimental Study of Suppressing PVC Fire with Water Mist using a Cone Calorimeter

    Effect of water mist on the small-scale solid fuel PVC (poly vinyl chloride) fire in a confined space has been studied experimentally using a cone calorimeter. In this study, the combustion characteristics of PVC, and the interaction between the water mists and the diffusion flame in a confined space with proper ventilation control are studied under various conditions in the cone calorimeter. The ...


    By SAGE Publications Ltd

  • Indoor Air Quality Complaint Response

    Hygieneering’s Industrial Hygiene department recently responded to Indoor Air Quality concerns by occupants in a hospital following a localized fire within their building.  The response including conducting air sampling for potential contaminants associated with the fire and an evaluation of remediation efforts.  Recommendations were provided to change air flow patterns to better ...


    By Hygieneering, Inc.

  • J555 gasless disinfection

    Detailed design, works manufacture and site installation of Sodium Hypochlorite dosing systems for conversion of 6 sites from Chlorine gas to liquid Sodium Hypochlorite Client: MWH Area: Hertfordshire WES Ltd were involved from early on in the project design stage in developing new Sodium Hypochlorite and Sodium Bisulphite dosing systems for Three Valleys ...


    By WES Limited

  • Bolderwood Campus Southampton (2) – Case Study

    Project Highlights Envirochem carried out broad spectrum radiological and chemical sampling within confined spaces to ascertain the extent of residual contamination within outlet drain sediments, constructional surfaces and nearby soils. Envirochem were able to draw together many different methods of access, sampling and analytical testing ...

  • Rescue Team Training

    In Need of Rescue Team Training? Every year a number of people are killed or injured in confined spaces, like service tunnels, underground vaults and sewers. Often such tragedies could have been prevented. High quality rescue team training is the best way to prevents such accidents, and will ensure any emergencies are dealt with using the most efficient ...


    By Civil Engineering Safety Ltd

  • Diesel Oxidation Catalyst for Marine Vessel

    Description Eight MTU 16V4000 (1800 kW) diesel engines powering two electric motors for the yacht Octopus, owned by Microsoft billionaire Paul Allen. At the time of launch in 2003 it was the largest private luxury yacht in the world, costing over US$200 million and with a permanent crew of 60. Challenge Design specifications called for the use of advanced exhaust after-treatment for ...


    By DCL International Inc.

  • Nanotechnologies dedicated to nucleation control

    This paper highlights the work of our group on the control and the observation of nucleation with techniques using nanotechnologies. This control is performed either by triggering nucleation in time with an external field or by localising it spatially in a microdroplet. Localisation in time using light irradiation induces nucleation by forming radicals; the use of electric field acts locally on ...


    By Inderscience Publishers

  • Tank cleaning in Abu Dhabi case study

    In 2008 we signed an agreement with an Abu Dhabi based industrial and utilities contractor. They wanted to increase their portfolio by offering tank cleaning services. Over a period of four months we trained a number of their operators and sourced new equipment to enable them to approach new clients. In 2009 we were awarded a contract to clean two crude oil tanks. Utilizing local labour, the new ...

  • Palm Springs, Nevada Style? Coyote Springs Nevada Implements Sustainable Wastewater Treatment and Reuse to Reduce Costs and Accelerate the Schedule

    The Coyote Springs community is being developed on the largest private landholding in Southern Nevada in a valley of the Mojave Desert about 60 miles northeast of Las Vegas. This 42,800 acre parcel is being transformed into a new city that could ultimately include up to 159,000 homes and 16 golf courses. Construction is currently underway on the first 6,881 acres of the 13,100 acres within Clark ...

  • Compact and safe: Hammer mill pellets non-ferrous metals reliably even in confined spaces

    Movable milling wall prevents downtimes... Due to rising raw material prices, ...

  • Preparation of Grouted Sand Specimens for Dynamic Testing

    Improvement of soil properties by means of chemical grouting, cement grouting, and cement/fly ash stabilization has been widely used in practical geotechnical applications. Knowledge of dynamic behavior of cemented soil is essential for seismic research and design. A laboratory testing program is conducted for determining the low-strain dynamic properties of artificially cemented soils. The major ...


    By ASTM International

  • Spray-applied gas membrane system instrumental in methane mitigation at Playa Vista

    The Playa Vista development, located near Marina Del Rey, California, has drawn political opposition over land-use issues and building safety concerns dating back to the 1990’s, which continued through the project’s inception in 2001. At the heart of the public safety concern was naturally occurring methane gas, which is known to be explosive if allowed to accumulate in confined ...


    By CETCO

  • Bulk tank cleaning case study

    We were contacted by a West Midlands based chemical manufacturer that required a large number of their tanks to be cleaned and decommissioned prior to demolition. The cleaning required a combination of non-man entry and man entry tank cleaning techniques an area that Progressive excel in. After several site visits and an audit of Progressive’s Health, Safety & Environmental procedures ...

  • Case study - Mazzei implements a reliable and efficient back-up effluent oxygenation system for The Butler County Ohio LeSourdsville WWTP

    Post-treatment Aeration Maintains Dissolved Oxygen in Effluent High-Solids Wastewater Prior to River Discharge. Butler County, OH The Problem: The LeSourdsville WWTP in Butler County, Ohio, was required to meet their NPDES permit requirement of 6 mg/l dissolved oxygen at the plants Miami River outfall. During normal operation the dissolved oxygen increase is accomplished in a cascade ...

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