bottom sampling Articles

  • Landfill Liners Vary by Application

    It was in 1991 that the Environmental Protection Agency promulgated its Criteria for Municipal Waste Landfills that set location restrictions, design and operating standards, groundwater monitoring requirements, corrective actions, closure requirements, and more for landfills. It was these rules that mandated that landfills be lined on the sides and bottom before waste is deposited and capped on ...


    By Agru America, Inc.

  • Potable Water Storage Tanks Need Mixing

    There are more than 50,000 municipal water systems in the United States and most of these systems rely on water towers, above-ground, and below-ground tanks to store their treated potable water. Many operators rely on mixing via normal cycling of water in and out of the tank to limit water age and deterioration of disinfectant chemicals. This reliance on "passive mixing" is not enough in most ...


    By Medora Corporation

  • GTI Covers Tackle Troublesome Algae at Clarksville Water Treatment Plant

    The Utility: The Clarksville Water System consists of a water treatment plant and a distribution system that serves approximately 160,000 people, making it one of the largest in Tennessee. The Clarksville Water Treatment Plant is situated on an 11 acre (4.5 hectare) site beside the Cumberland River, the city’s source of water, and has an estimated capacity of 28 MGD with peak rates ...

  • Case study - Identifying low-frequency tonal noise in windy and noisy conditions

    Problem A large LNG gas facility (approximately 300m x 150m) producing 300 000 tons of LNG annually is situated in a terminal area with the nearest populated area at a distance of around 1 km. Within the gas production facility, a low-frequency tonal noise at around 500 Hz is generated causing complaints from nearby neighbours. The tone imposes a more stringent noise requirement on the ...


    By Norsonic AS

  • Real Time Measurments of Acetylene in Ethylene Manufacturing Process

    Keywords Tunable Diode Laser, Wavelength Modulation Spectroscopy, Analyzer, Acetylene, Ethylene, Acetylene Converter Abstract The analyzer, based on near infrared Tunable Diode Laser Absorption Spectroscopy (TDLAS), was developed for the measurement of acetylene in process streams. Measurements of acetylene were made as under laboratory conditions and in ...


    By AMETEK Process Instruments

  • Why Are CHP Closing All Over The World?

    Burning of coal nowadays has become a big problem. The main reason for this is a rapid increase of mankind. So, China burns half of coal in the world. Since 2000 the share of coal in world energy production has increased from 25 to 30%, and the Chinese economy is responsible for 82% of this growth. In Beijing, it is customary to use ...


    By Lumex Instruments Group

  • Air Separation Plants and the Use of Oxygen Monitors

    Air separation plants are critical for many different industries, from clean energy to manufacturing. Nowadays, cryogenic is the most common type of distillation used to separate air into its component gases - nitrogen, oxygen, and inert gases including helium and argon. If your industry relies on air separation for product development or manufacturing, then knowing how the process works is ...

  • Pollutants, Aquaco Water Recycling Ltd can offer a solution

    With ever increasing demands from the Environment Agency to minimise pollutants in water effluent arising from industrial processes, Aquaco water recycling ltd can offer a solution which works well in many industries. This is the Red Box Electro Coagulation system whereby contaminants are flocculated by an electrical process into a size which can then be filtered, pressed and disposed of. The ...

  • Estimating Potential EH&S Benefits

    Gaining acceptance and funding for implementing an Environmental Management Information System (EMIS) within an organization often depends on whether the Environmental, Health & Safety (EH&S) department has a “seat at the table.” If EH&S does not have a “seat at the table,” as is the case in many, many organizations, conducting an accurate and accountable estimate of potential system benefits ...


    By E2 ManageTech

  • Remediation of TCE NAPL in active Alleyway Arlington, Texas - Case Study

    Project Summary TRS Group, Inc. (TRS) completed a standard Fixed Price Remediation (SFPR) of trichioroethene (TCE) in soil in Arlington, TX using electrical resistance heating (ERH) in 2012, The system incorporated 19 electrodes with horizontal vapor recovery (VR) wells to treat a soil volume of approximately 4,155 cubic yards (yd3) located between two active buildings. Active ...


    By TRS Group, Inc.

  • Evaluating Food Digestion Effluent For Landscape Use

    Over the last year, Loyola Marymount University (LMU) has installed and studied a food waste diversion technology that converts raw food waste into a liquid effluent that is disposed through the sewer system. As an urban university located in West Los Angeles, California, LMU faces two major barriers with respect to composting food waste: on-campus space constraints and long distances to off-site ...


    By BioCycle Magazine

  • Pumps in lubricant production

    A major business segment at Hermann Bantleon GmbH is the development, production, and sales of lubricants. At its plant in Ulm, Germany, this company starts with high-quality base oils and produces both universal and customized lubricants according to its own formulas. Customized products are often the best way to meet special requirements in cutting and non-cutting production processes. They can ...


    By ALLWEILER GmbH

  • Environmental assessments and audits at aviation facilities

    Environmentalists are all about “green”, but there is another type of green that is associated with being environmentally compliant – money. There are primarily two types of environmental assessments that are performed at aviation facilities that can affect a company’s bottom line: Phase I/II Environmental Site Assessments (ESA) and General Facility Audits. The ESAs are also referred to as due ...


    By DES, Inc.

  • Validation of salt water disposal well treatment plants with handheld oil in water sample analyzer

    Salt Water Disposal (SWD) well operators often dispose a substantial volume of oil inadvertently when injecting salt water, thereby losing the opportunity to sell the oil on the market and potentially reducing the ability to inject water in the well. Injection facilities are typically operated with minimal instrumentation or system optimization, which means the operators don't know how much, or ...

  • Identify plastic contaminants using Microscopy Imaging | Spectroscopy Solutions

    Engineered plastic components are ubiquitous in modern society. Plastics have the advantage of lowering cost, reducing parts count and weight, and providing ultimate industrial design flexibility as complicated functional shapes can be easily produced. Engineered plastic components can be filled or reinforced with carbon or other fibers to increase rigidity and strength. ...


    By Specac Limited

  • In Situ electromagnetic heating for hydrocarbon recovery and environmental remediation

    Introduction Thermal recovery methods, as applied in heavy oil and oil sand deposits, and in environmental remediation, have the common objective of accelerating the hydrocarbon recovery process. Raising the temperature of the host formation reduces the oil and bitumen viscosity, and, in environmental remediation, increases vapour pressure. These effects assist in sweeping the substances ...


    By McMillan-McGee Corp.

  • Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study

    A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...


    By Cleveland Biotech Ltd.

  • Sampling moisture in the soil profile

    Patterns of water replenishment and use give rise to large spatial variations in soil moisture over the depth of the soil profile. Accurate measurements of profile water content are therefore the basis of any water budget study. When monitored accurately, profile measurements show the rates of water use, amounts of deep percolation, and amounts of water stored for plant use.Experimental ...


    By METER Group, Inc.

  • Determining Concrete Maturity with Temperature Monitoring

    Thermocouple Data Loggers Save Time & Improve Safety Concrete maturity is a measure of how much a batch of freshly poured concrete has cured. It is a quick indicator of the in-place strength at that point in time relative to the ultimate strength when the concrete is fully cured. Traditional measurements of concrete strength rely on compression tests such as made in a lab on field cured ...


    By CAS DataLoggers

  • VialTweeter at UIS250L - Intensive Sonication of Vials

    Sonication is a very effective method for the mixing, homogenizing, emulsifying, dispersing, ...


    By Hielscher Ultrasonics GmbH

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