Monitoring & Testing Articles

  • Controlling Fugitive Emissions, Part 2: Permanent Total Enclosure

    Fugitive emissions are the uncontrolled release of gases into the atmosphere. This is something that occurs regularly; in fact, it often happens when we fill our cars' gas tanks. The air being displaced inside the gas tank when it is being filled causes gasoline vapor emissions (hydrocarbons) to exit into the atmosphere in an ...

  • Control Algae and Improve the Water Quality in Waste Stabilization Ponds

    Due to population growth, accelerated urbanisation and economic development, the quantity of waste water generated is increasing globally. Mainly in low-income areas, a large proportion of the waste water is discharged directly in the environment. When the waste water is treated, the treatment plants may not remove certain pollutants that can have a negative impact on the people and ecosystem. ...


    By LG Sonic

  • Advancements in Scaling Calculations and an in depth look at Antiscalant dosing for stressed waters and high recovery systems

    Abstract Over the past few decades the Reverse Osmosis (RO) industry has observed an increase in applications in challenging waters. Water sources that were never considered suitable for RO are now commonplace, including municipal waste streams, industrial waste, and even mining waste. Furthermore, regulatory restrictions, environmental obligations, solid waste expenses, and water supply ...


    By Avista Technologies

  • London Hotspots for Noise Nuisance Complaints [Infographic]

    As we continues our quest to build up a noise nuisance map of the UK, we recently turned our attention to our fair Capital, London. With 33 boroughs in Greater London, it was always going to be something of a time-consuming task to get the noise complaints data via Freedom of Information (FOI) requests. However, we were pleasantly surprised by the London Local Authorities efficiencies. The vast ...


    By Cirrus Research plc

  • Nitrate Analysis of Water Samples Using a Benchtop UV-Vis Spectrophotometer

    Nitrogen is naturally found in groundwater and surface water in the form of nitrate, nitrite, or ammonium. The EPA has established a maximum contaminant level of nitrate-nitrogen in potable water of 10ppm. This application presents results of UV-Vis analysis of nitrate concentrations in drinking water, ground water, and industrial wastewater, showing that the manual colorimetric method is ...

  • Determination of Selected ASTM Perfluorinated Compounds (PFCs) Using LC-MS/MS

    ASTM methods D7968-14 and D7979-15 are used to determine the same list of PFCs but in different matrices. ASTM method D7968-14 lists soil as a matrix while ASTM method 7979-15 lists water, sludge, influent, effluent and waste water as matrix options. These methods use different extraction techniques but both evaluate the samples by liquid chromatography/tandem mass spectrometry (LC/MS/MS). We ...

  • [Technical Paper] Biomass Evolution in Full-Scale Drinking Water Filters

    After nearly two-years of work, we could advance our understanding of ATP measurement in drinking water biofilters. I will describe some of the background and key results from the study below – more information is provided in the Journal AWWA December 2016 article. Background of the ...


    By LuminUltra Technologies Ltd.

  • Monitoring hydrocarbons in Bilge water - Case study

    The Situation Various processes onboard ships, such as machinery wash-down, maintenance, and leakage, generate oily wastewater. This contaminated water flow collects in the bilge of the ship. Marine diesel, lubricating oils, grease, as well as other contaminants may be present in bilge water. The bilge water is discharged overboard, with oil and grease concentrations in the discharged ...

  • Controlling Fugitive Emissions, Part 1: Close Capture Hooding

    Fugitive emissions, in their simplest form, are the uncontrolled release of gases to the atmosphere. Each one of us may contribute fugitive emissions when we fill our automobile gas tanks. The displacement of air inside the gas tank causes gasoline vapor emissions (hydrocarbons) to exit out the fill spout (un-controlled) to ...

  • Cyanobacterial Blooms

    Cyanobacterial blooms can lead to a depletion of oxygen in the water, a release of toxins, as well as taste and odour problems. Cyanobacteria, also known as blue-green algae are found in the oldest known fossils, dating back 3.5 billion years. They were the organisms that caused the first mass extinction on earth, but are also the reason for the earth as we know it today. They released the first ...


    By LG Sonic

  • TOC analyzer for airports

    During winter, de-icing processes at airports necessitate storm water and de-icing water management. Especially due to adhesive (sticky) substances, strongly fluctuating concentrations and a lot of chemicals, the monitoring systems itself must be tailor-made to fight this water analysis challenge. LAR 's ...


    By LAR Process Analysers AG

  • Ship-mounted Direct and Diffuse Hyperspectral Radiometers successfully measure Solar Irradiances and Aerosol Optical Depth

    Marine AOD measurements matter because aerosols can affect respiratory health, climate change, and the safety of aircraft during volcanic events. However, routine marine Aerosol Optical Depth (AOD) surface-based observations are in short supply because it is both difficult and expensive to operate conventional automatic sun photometers at sea. Two prototype hyperspectral radiometers have shown ...


    By Delta-T Devices Ltd.

  • Coal fired power plant – humidity measurement during briquetting process

    Our subsidiary SWR Engineering has launched the M-Sens 2 sensor for the continuous measurement of humidity on solids of all kinds. It can ideally be used, for example in container outlets, conveyor belts, conveyor screws, mixers and conveyor dryers... Application An operator of a coal fired power plant uses brown coal for the ...


    By Environnement S.A

  • Interactive energetic optimisation of a waste water treatment plant by means of a load profile

    Funding project "Energy optimisation of the clarification plant Blümeltal" in the environment innovation programme Abstract Interactive Energetic Optimisation of a Waste water Treatment System Using a Load Profile Funded Project "Energy Optimisation of the Blümeltal Waste Water Treatment Plant" in the Environment Innovation Programme The Blümeltal waste ...


    By BITControl GmbH

  • 4700 Sampler Industrial Park Wastewater Monitoring - InfraServ Knapsack, Germany - Case Study

    The Model 4700 Automatic Refrigerated Sampler from Teledyne Isco, Inc. is used for water quality monitoring at an industrial park operated by InfraServ Knapsack, Germany InfraServ Knapsack InfraServ GmbH & Co. Knapsack KG is the company that operates the Chemical Industrial Park Knapsack. The site is situated in Huerth, south of Cologne in Germany. The park is divided into ...


    By Teledyne Isco

  • What is Chemical Oxygen Demand (COD)?

    Chemical Oxygen Demand (COD) analysis is a measurement of the oxygen-depletion capacity of a water sample contaminated with organic waste matter. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in water. Why Measure COD? COD is used as a general indicator of water quality and is an integral part of all water quality ...


    By MANTECH

  • Meeting high standards… Compliant fuel and oil separators from Kingspan Klargester

    All manner of projects, both large and small, are required to maintain compliance with all environmental rules and regulations concerning property drainage. As an aspect of compliance, it is essential that the appropriate separators are deployed in order to meet or exceed the drainage demand but to also comply with the ongoing project demands such as cost and time. Kingspan Klargester offers a ...


    By Kingspan Environmental Ltd

  • Fire Codes: A Foundation of Safety for a Rapidly Changing World

    Chief among these safety features is fire protection. There are myriad codes and regulations relating to fire safety in commercial buildings, from standards on portable fire extinguishers to the installation of stationary pumps for fire protection — the U.S.- based National Fire Protection Agency (NFPA) alone has more than 300 consensus codes that have been adopted in whole or in part ...

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • Stripper Wells goes from 1 BBL to 15 BBL for less $100/day

    Feb 2017, Jenfitch, LLC working with a private independent oil service firm from Houston, Texas recently conducted a field study on four different low producing oil wells (Stripper Wells) in Pecos County, TX. These wells were generating 1-2 barrels of oil per day. Using several different methods of injecting JC 9450 into the well, the production increased up to 15 barrels per day for 5 days and ...


    By Jenfitch, LLC

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