Chemical Monitoring Articles

  • How to prepare for a chemical attack

    It is a shocking and sad reality that chemical attacks are happening in the world today. The threats continue to rise as global tensions become greater. It can only be a good thing to be prepared if one was to occur in your area. The first step in preparation is to understand more about what chemical attacks are. What are chemical attacks? Chemical attacks involve using toxic ...


    By Fast-ACT

  • Chemical Mfg. Plant Avoids Long Term Shut Down with Thermal Oxidizer

    Recently, Catalytic Products International (CPI) worked with a customer who determined during a routine plant inspection that they had unexpected emissions from their process. This can happen as regulations change and as plants continue to improve operations or even change products or processes.  In this case, the customer voluntarily ...

  • Detection of allergens in processed foods: the next analytical challenge

    Those of us involved in the food allergen analytical community are constantly striving to improve allergen detection methods. One of the areas of focus in recent years has been to investigate how we can enhance the detection of allergens present in processed foods. The majority of the food and drink we consume has been processed or modified in some way, this processing brings about many benefits ...


    By Romer Labs Diagnostic GmbH

  • Chemical cleaning guide - Case study

    Purpose This plant service bulletin provides guidelines to owners and operators on when to chemically clean boilers and steam generating equipment. Background Though current standard water treatment practices may be followed, the internal surfaces of boiler waterside components (including supply tubes, headers and drums) can accumulate deposits over a period ...


    By Babcock & Wilcox MEGTEC LLC

  • Greywater characterization and handling practices among urban households in Ghana: the case of three communities in Kumasi Metropolis

    Greywater management in Ghana receives little or no attention although untreated greywater is associated with environmental and public health risks. This paper assesses greywater characteristics and handling practices among urban households in three selected communities in Kumasi, the second largest city of Ghana. The study involved in-depth surveys (interviews and observations) with 90 ...


    By IWA Publishing

  • What chemicals are used in my sterilizer or high-level disinfectant equipment?

    Do you know the chemicals used in low-temperature sterilizers or high-level disinfectant equipment that you use every day? Here is a quick, high-level guide with some of the most common brands and chemicals used in them. Low-Temperature Sterilizer Brands, Chemicals and Concentrations ...


    By ChemDAQ, Inc.

  • Improved Wastewater Treatment & Paper Mill Performance With New COD Monitoring Technology

    The Nordic Wood Biorefinery Conference was held in Stockholm, Sweden during March 28-30, 2017. An abstract presentation authored by partners from VTT, Kemira, FPInnovations and MANTECH was presented during the conference. The PeCOD® Analyzer has the ability to enable pulp and paper mills to improve effluent treatment process and to optimize chemical programs, leading to proper ...


    By MANTECH Inc.

  • Changing the Rules with Mass Detection

    How simplified detectors can provide mass data for every analytical run and speed up method development With access to multiple mass spectrometry systems of varying degrees of sophistication, Davy Guillarme (University of Geneva, Switzerland) wasn’t actively looking for new mass detection solutions. Nevertheless, the Waters ACQUITY QDa mass detector caught his eye. Why? Because it opens a ...


    By Waters Corporation

  • Ultra-Pure Proof with Mass Detection

    Before joining the newly formed Reach Separations in February 2012, I spent five years at AstraZeneca in analysis and purification (latterly as group lead in reversed phase and chiral purification). This experience gives me a good perspective of both the needs of “big pharma” and, more recently, the needs of a specialist separation solution provider. My ...


    By Waters Corporation

  • Reclaimed municipal wastewater for forage production

    This study aims to evaluate the possibility of using reclaimed municipal wastewater for agricultural purpose. We assessed the validity of municipal wastewater treatment, analyzing its chemical characteristics before and after the biological stabilization by pond treatment (WSP). The reclaimed municipal treated wastewater (TWW) was used to irrigate Cenchrus ciliaris. Experiments were carried ...


    By IWA Publishing

  • Modification and characterization of microwave assisted N doped TiO2 – a photodegradation study under suspension and immobilized system

    A commercially available TiO2 (P25) was modified to produce nitrogen (N) doped TiO2 prepared by mixing TiO2 powder with various amounts of urea as N precursor using a microwave irradiation heating technique. X-ray photoelectron spectroscopy analysis showed that N chemically bonded with TiO2 produces Ti-N. The measured band gap energy (Eg) ...


    By IWA Publishing

  • The Millennials - our next generation of membrane experts

    Raul Gonzalez is a Technical Support Specialist at Avista Technologies in San Marcos, CA. After completing his Bachelor’s Degree from Cal Poly Pomona in Civil Engineering, Raul participated in the Orange County Water District internship program focused on regulatory and water production. In ...


    By Avista Technologies

  • Real-time monitoring for reduced chemical maintenance

    We are pleased to be featured in this month’s American Laundry News digital edition, together with our customer Walter E. Nelson, a janitorial, paper and chemical distributor in the Northwest that provides a wide range of laundry products and equipment. Jerry Roberts, of Walter E. Nelson, explains how he has experienced a significative ...

  • Keeping Healthcare/SPD Workers Safe from Exposure: 2 Very Different Options

    Continuous Monitoring vs. Badges Badges are designed to provide the Time Weighted Average (TWA) data for the total exposure period. They contain an absorption medium that reacts with or absorbs and holds the target chemical from the air to be analyzed later, which indicates the exposure after the fact. Badges, sample tubes, and wet chemical methods were the predominant technologies for monitoring ...


    By ChemDAQ, Inc.

  • A study of the reaction of ferrate with pentachlorophenol – kinetics and degradation products

    Pentachlorophenol (PCP) is a persistent pollutant which has been widely used as a pesticide and a wood preservative. As PCP is toxic and is present in significant quantities in the environment, there is considerable interest in elimination of PCP from waters. One of the promising methods is the application of ferrate. Ferrate is an oxidant and coagulant. It can be applied as a multi-purpose ...


    By IWA Publishing

  • How can you measure Peracetic Acid separately from Hydrogen peroxide, Isn’t there hydrogen peroxide in PAA?

    We receive questions of this sort frequently and the questioner is partly right. Peracetic acid (PAA) is formed in an equilibrium mixture with hydrogen peroxide and acetic acid, so in a mixture of PAA, hydrogen peroxide and acetic acid, PAA is being continually formed by the reaction of hydrogen peroxide and acetic acid, and peracetic acid is continually breaking down to reform hydrogen peroxide ...


    By ChemDAQ, Inc.

  • Water Distribution System Security Monitoring

    A water security instrument essentially needs to be able to detect potential contaminants in drinking water. Since a significant number of potential chemical contaminants are organic in nature, a water security monitoring instrument that can detect organic matter in water is perfect for this application. Real Tech has developed an instrument specifically designed for water security ...


    By Real Tech Inc.

  • Multiphase partitioning and risk assessment of endocrine‐disrupting chemicals in the Pearl River, China

    Multiphase partitioning of endocrine‐disrupting chemicals (EDCs) in the Pearl River (China) were investigated. The colloidal concentrations for 4‐tert‐octylphenol, 4‐nonylphenol, bisphenol A (BPA), and estrone (E1) were in the ranges of 0.2 ng/L to 0.8 ng/L, 23.2 ng/L to 108 ng/L, 2.3 ng/L to 97.6 ng/L, and not detectable (nd) to 0.32 ng/L, respectively; for truly dissolved concentrations, the ...


    By John Wiley & Sons, Ltd.

  • An Overview of STI Group’s Services for the Chemical and Petrochemical Industries

    At chemical plants it is crucial for operations to be run at optimal efficiency in order to continually satisfy the needs of chemical customers and to allow the facility to remain productive and profitable. Chemical plant facilities and equipment must be fabricated with the highest degree of quality, durability, and reliability. Likewise, maintenance of the facility must be conducted by highly ...


    By STI Group, Inc.

  • Determination of alkali process parameters facilitates recovery of pulping chemicals at a Kraft paper mill in Slovakia - Case Study

    Our customer is a major integrated pulp & paper manufacturer with operations located in Central Europe, Russia and South Africa, where its roots date back as early as 1967. ...


    By AppliTek NV

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