chemical analysis Articles

  • Analysis of peCOD Technology and Comparison to Dichromate Method

    Bridgnorth Aluminium is a UK-based company that makes high-quality aluminum products for the lithographic industry. Their desire to reduce water consumption and improve process efficiency, led to a 6 figure investment in a new, on-site, effluent treatment plant. Their aim is to reduce water discharge, conform to stringent water authority requirements, increase recycling of water on-site ...


    By MANTECH

  • A quick guide to oil analysis for engine test applications

    Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...


    By Spectro Scientific

  • PeCOD® Analyzer oxygen demand analysis for source & treated drinking waters

    MANTECH’s chemical oxygen demand (COD) analyzer is breaking new ground in the science of monitoring source and treated drinking water. In addition to providing 15-minute COD results and biochemical oxygen demand (BOD) estimates, MANTECH’s PeCOD® Analyzer measures natural organic matter (NOM) in raw and treated drinking water. The NOM Analyzer™  — which is the ...


    By MANTECH

  • Water Treatment Optimization - Case Study

    Drinking water treatment in North America has stringent requirements for effluent water quality, with a great amount of attention being drawn to the presence of hazardous disinfection by-products (DBPs) persisting through water distribution systems. The operation of water treatment plants involves addition of various mixing agents to help with coagulation and settling of organics in the raw water ...


    By MANTECH

  • How conditions affect cookies and air pollution control solutions

    Chocolate chip cookies are one of my favorite treats. Butter, sugar, eggs, flour, vanilla, and, of course, chocolate chips. Combine the ingredients together and you get a delicious cookie. Somehow, using the same ingredients the cookies do not always turn out the same. Sometimes they are thinner and crispier. Other times, they are soft and chewy. After watching cooking shows, I have come to ...

  • Contaminated soils and sludge treatment plant - Case Study

    Client: Ecosistem Group, Lamezia Terme (CZ) – Italy Challenge: to transform waste into product! The Client possesses a large plant for the treatment of products contaminated with hazardous substances and materials, recycling of recovered materials and disposal of non-recyclable waste, which is considered highly ...


    By Baioni Crushing Plants Spa

  • Science and precaution in the risk analysis of chemicals

    This work shows the risk assessment procedures for chemicals and the factors that can determine the area of scientific uncertainty in the evaluation process, making the application of the precautionary principle necessary. The nature of the actions to be adopted on the basis of the precautionary approach, that is expressly included in the European Union Treaty, can be quite different. These ...


    By Inderscience Publishers

  • The Chemical Safety Improvement Act: An In-Depth Review and Analysis

    In a stunning bipartisan show of support for reform of the Toxic Substances Control Act (TSCA) that few saw coming, Senators David Vitter (R-LA) and Frank Lautenberg (D-NJ) (among bipartisan others) introduced on May 22, 2013, the Chemical Safety Improvement Act (CSIA), later designated S. 1009, available online. ...


    By Bergeson & Campbell, P.C.

  • Worldwide Leather Chemicals Market Forecasts and Analysis 2018

    Leather chemicals are a class of products used in the treatment of animal hides for the production of leather. There are a range of leather chemicals available in the market, which are deployed for every step in leather production - from beamhouse to finishing. The major categories of leather products include shoes, garments, furniture and automotive upholstery, and other automotive ...


  • PHASUITE: AN AUTOMATED HAZOP ANALYSIS TOOL FOR CHEMICAL PROCESSES

    INTRODUCTION Safety is an important issue in process design and operation in chemical industry. It is even more critical for modern chemical manufacturing processes, which are either operated under extreme conditions to achieve maximum economic profit, or are highly flexible, such as the specialty chemical or pharmaceutical processes. The importance of safety analysis in process operation is ...

  • An overview of exergy analysis for chemical process industries

    Among all the industrial sectors, the chemical industry is one of the energy intensive industry with 33% share in industrial energy use. Increasing cost of raw materials, infrastructure cost and energy cost increases burden on the profit margin of the chemical sector. Chemical industries are looking for improved process design and efficient equipments where energy consumption can be reduced. In ...


    By Inderscience Publishers

  • Application notes: TOC analysis in a chemical laboratory

    What You Need to Know Analytical laboratories in the chemical industry are routinely tasked with monitoring organics in water across a wide range of applications. For example, organic carbon analysis is being used to: Monitor plant storm water and wastewater Test for condensate system or boiler integrity Enhance cooling and make-up water quality ...


    By GE Analytical Instruments

  • Analysis of Organic plating Bath Additives and Chemicals by Isocratic HPLC

    In today’s world, over 75% of all metal surfaces on manufactured metal “items” have some sort of plated finish on them. From highchromium steel car bumpers to zinc diecast toys to Silver-contact electronic components. While the primary composition of these plating baths are inorganic (the metals and salts that are used to make up the desired metal finish), almost all types of plating baths; from ...


    By Buck Scientific Inc

  • Playing Dirty: Analysis of hazardous chemicals and materials in games consoles

    The use of hazardous chemicals and materials in electronic products is widespread. Despite some recent improvements – a result of a combination of legal restrictions in some parts of the world, and voluntary action by companies – many devices still contain a variety of hazardous substances. These include chemicals which fall outside current legislative controls, as highlighted in recent studies ...


    By Greenpeace International

  • Sensitivity analysis for the SimpleTreat model to simulate fate of chemicals in sewage treatment plants

    SimpleTreat 3.1 predicts the distribution and elimination of chemicals by sewage treatment. The model is used as the default calculation in EUSES 2.0 to estimate exposure concentration in the receiving water, soil and air. A sensitivity analysis was performed to rank input parameters according to their influence on model predictions. Triclosan was selected for the base case. The sewage flow, ...


    By IWA Publishing

  • PeCOD® Analyzer 15-minute chemical oxygen demand (C0D) analysis

    The revolutionary PeCOD® Analyzer technology provides Chemical Oxygen Demand results in under 15 minutes in a Simple-Safe-Effective manner. With our mercury and dichromate free chemistry installed in over 20 countries, the PeCOD® Analyzer has delivered successful test monitoring of COD in a variety of environments with our approved and published MOECC method  Through our proprietary ...


    By MANTECH

  • Analysis of physico-chemical and bacteriological quality of drinking water in Mafikeng, South Africa

    Mafikeng, the capital of the North West Province, receives water from two sources, namely the Molopo eye and the Modimola dam. Once treated, the potable water is mixed and supplied to the city via distribution systems. This study was designed to assess the quality of drinking water in Mafikeng and also to determine whether the water from the two sources has an impact on the mixed water ...


    By IWA Publishing

  • Analysis and occurrence of typical endocrine-disrupting chemicals in three sewage treatment plants

    Seven typical endocrine-disrupting chemicals (EDCs), including bisphenol A (BPA), 4-tert-octylphenol (OP), estrone (E1), estradiol (E2), 17α-estradiol (17α-E2), estriol (E3) and 17α-ethinylestradiol (EE2) in wastewater, were simultaneously determined with gas chromatography–mass spectrometry (GC–MS). Samples, including influents, effluents and wastewater of different unit processes, were taken ...


    By IWA Publishing

  • Analysis of the chemical form of iron in water pipes using XAFS measurements

    Yellow and red metal oxides are commonly found on deteriorated water pipes and it has been reported that their main component is iron. X-ray absorption fine structure (XAFS) spectroscopy is an effective method which can be used to measure the chemical form of metals. However, when the iron concentration in water samples is extremely low, XAFS measurement and analysis can be difficult due to so ...


    By IWA Publishing

  • Chemical analysis of drinking water of villages of Sanganer Tehsil, Jaipur District

    Abstract Due to pressure of human activity, urbanization and industrialization, the groundwater sources are degraded gradually; therefore pure, safe, healthy and odorless drinking water is a matter of deep concern. There are many pollutants in groundwater due to seepage viz. organic and inorganic pollutants, heavy metals, pesticides, fluorides etc. In Rajasthan state, all 32 districts are ...

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