liquid level switch Articles

  • Installation of Radar Level Instruments in Anaerobic Digesters

    ABSTRACTThere are numerous well-proven options available for level determination instrumentation. Instrumenting treatment processes present some unique challenges. Some of these include the ability for wastewater or residuals to clog and blind instruments. Level determination in an anaerobic digester presents these problems as well as others including foaming, surface agitation, and operation in ...

  • Texas Instruments - A Novel Separation Technique for the Analysis of Trace Levels of Atmospheric Contaminants in Inert Semiconductor Process Gases

    A NOVEL SEPARATION TECHNIQUE FOR THE ANALYSIS OF TRACELEVELS OF ATMOSPHERIC CONTAMINANTS IN INERTSEMICONDUCTOR PROCESS GASES J. Scott McWilliams, Alan Johnson, Charlene Long, Jeremiah D. Hogan*Texas Instruments, Inc.Dallas, TX 75265 Low ppb detection limits for contamination in cylinder gases have been achieved with gas chromatography using a modified gas ...


    By Environics, Inc.

  • Household energy consumption and its demand elasticity in Thailand

    This study concentrates on the analysis of energy consumption, expenditure on oil and LPG use in cars and aims to examine the elasticity effect of various types of oil consumption. By using the Deaton's analysis framework, the cross–sectional data of Thai households economic survey 2009 were used. By defining energy goods in the scope of automobile fuel, the results reflect the low importance of ...


    By Inderscience Publishers

  • Efficiencies of advanced formulation Manganese - Case Study

    With manganese being the most commonly deficient trace element in UK soils and potentially impacting on the development, health, quality and yield of arable and vegetable crops, countering deficiencies is a necessity for many farms. John Bird from F D Bird & Sons, tells us how switching to a lower volume product has brought efficiencies in both time and cost.  Treatment of manganese ...


    By Ilex EnviroSciences Limited

  • Monitoring flammable gas in boiler houses

    The most common fuels in use for space and water heating are Oil, Natural Gas and Liquid Petroleum Gas (LPG). By far the most popular, clean and cost effective solutions are utilising Natural Gas or LPG. The traditional safety measure derived from the time of oil fired boiler houses is the use of a fusible link placed above the each boiler. The fusible link is intended to melt if it becomes ...

  • Common Treatment Technologies for Nonhalogenated VOCs in Ground Water, Surface Water and Leachate

    It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. Treatability studies to characterize the biodegradability may be needed for any biodegradation technology. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would be ...

  • Common Treatment Technologies for Halogenated VOCs in Ground Water, Surface Water and Leachate

    It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. Treatability studies to characterize the biodegradability may be needed for any biodegradation technologies. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would ...

  • Class I, Division 1 Industrial Lights for THC Extraction Labs

    The cannabis industry is growing at a rapid rate. According to a report published by Marijuana Business Daily, the emerging sector is forecasted to overtake craft beer and organic food products. With legalization gaining momentum, it could reach $44 billion by 2020. The study also pointed out that for every dollar spent on weed, the local economy gains three dollars. A recent trend in marijuana ...


    By Larson Electronics LLC

  • Common Treatment Technologies for Fuels in Ground Water, Surface Water, and Leachate

    It may be necessary to know other subsurface information to remediate fuels in ground water. Treatability testing to characterize contaminant biodegradability and nutrient content may be needed for any biodegradation technology. A subsurface geologic characterization would be particularly important to characterize the migration of NAPLs. Recovery tests are usually necessary to design a ...

  • ClorTec™ On-site Disinfection Helps Ensure Safety at British Columbia Water Treatment Facility

    Constructed in 1997, the District of Chetwynd Water Treatment Plant (British Columbia, Canada) treats nearly 2,500 cubic meters of water per day using gas chlorination as its primary form of drinking water disinfection. With recent concerns about the safety of chlorine gas, including potential eye, skin and respiratory irritation and the risk of death with high exposure, the district elected ...

  • PureAire O2 Monitor for Food Manufacturing Tunnel/Freezers with N2 and CO2: Using a 10 Year No Calibration Sensor

    For flash freezing nothing beats a liquid nitrogen or carbon dioxide immersion or tunnel style freezer for efficiency, overall performance, and cost savings. If you haven't yet switched to an immersion freezer, doing so now could position you to better compete in your market segment and save money over time. Learn more about why these freezers are a must for frozen food manufacturers. ...

  • Impact of CO2 Emission Trading Schemes on Residual Waste Management

    ABSTRACT The EU-Emission trading scheme (ETS) in its current design hardly affects residual waste management directly: methane from landfill-sites is not included although it is one of the “Green-House-Gases” (GHG) of the Kyoto Protocol, CO2-emissions from waste incineration plants are generally exempted from the regulation of the directive and emissions from combustion of landfill-site gas can ...


    By ORBIT e.V.

  • Project profile - Orchard Highlands USEPA arsenic treatment demonstration Goffstown, New Hampshire

    Background In 2004 AdEdge Technologies Inc. (AdEdge) was selected to implement six fullscale arsenic treatment demonstration projects as part of the USEPA Office of Research and Development arsenic research program (Round 2). These six sites were in addition to three USEPA Round 1 demonstration sites awarded to AdEdge in 2003. The purpose of the research effort is to provide information ...

  • Fire and Smoke Detection System - A must have Component in Aircrafts

    Summary: Fire and Smoke detector system is one of the must have components of aircrafts of any kind. They ensure safety of the passengers by giving indications of any kind of fire burst. Here you find a brief on the significances and the types of life securing fire and smoke detection systems. What are the Significances of Fire Detection Systems? One of ...


  • The benefits of monitoring compressed air

    Compressed air is used in many manufacturing processes for many different reasons, from the actuation and control of pneumatic valves and cylinders to the operation of process machinery and tooling. It can also be used as a transport medium for bulk materials or as a purge gas. For all its uses it is nonetheless expensive. This is why, through detailed monitoring, a business can enjoy the ...


    By Contrec Europe Limited

  • The benefits of monitoring compressed air

    Compressed air is used in many manufacturing processes for many different reasons, from the actuation and control of pneumatic valves and cylinders to the operation of process machinery and tooling. It can also be used as a transport medium for bulk materials or as a purge gas. For all its uses it is nonetheless expensive. This is why, through detailed monitoring, a business can enjoy the ...


    By Contrec Europe Limited

  • Common Treatment Technologies for Nonhalogenated VOCs

    Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with nonhalogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific ...

  • Case study - QED pumps are the pumps of choice at North America’s largest landfill

    The Puente Hills Landfill in Los Angeles County, California, is the largest operating landfill in North America based on daily tonnage received.  Located in an unincorporated area of Los Angeles County near Whittier, California, it is owned and operated by the Sanitation Districts of Los Angeles County.  It has received approximately 118 million tons of solid waste as of April 2008, ...


    By Geotech

  • Rugged Pumps Survive at Puente Hills Landfill - Case Study

    QED Pumps are the Pumps of Choice at North America's Largest Landfill The Puente Hills Landfill in Los Angeles County, California, is the largest operating landfill in North America based on daily tonnage received. Located in an unincorporated area of Los Angeles County near Whittier, California, it is owned and operated by the Sanitation Districts of Los Angeles County. It has received ...


    By QED Environmental Systems

  • World War II Memorial, DC - Case Study

    In 2003, AdEdge Water Technologies began working closely with EarthTech, the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...

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