Formaldehyde (CH2O) Articles

  • In addition to formaldehyde, decoration, what harmful gases?

    As the saying goes, clothes can make people more beautiful, in fact, the house is the same, when you buy a house, and give it a beautiful coat, can improve the quality of life, living in the house for a long time, re decoration, the old house and get a new life. However, the decoration pollution problem has become a lot of people's heart disease. Today we are going to talk about the ...

  • What is the difference between a REL and a PEL?

    There is often confusion between exposure limits put out by different agencies even within the same administration. For example, here the National Institute for Occupational Safety and Health (NIOSH) establishes Recommended Exposure Limits (RELs) whereas the Occupational Safety and Health Administration (OSHA) issues Permissible Exposure Limits (PELs). Realizing the difference between the two is ...


    By ChemDAQ, Inc.

  • Removal of organic phosphorus and formaldehyde in glyphosate wastewater by CWO and the lime-catalyzed formose reaction

    Glyphosate (PMG) wastewater with 40–600 mg/L organic phosphorus (OP) and 1–4% CH2O was treated by catalytic wet oxidation (CWO) and the lime-catalyzed formose reaction to remove total phosphorus (TP) and improve biodegradability. Activated carbons (ACs) modified by H2O2 oxidation and thermal treatment with melamine were used as CWO catalysts and characterized by N2 ...


    By IWA Publishing

  • Identification of bacteria assimilating formaldehyde in a biological activated carbon filter by means of DNA stable isotope probing and next-generation sequencing

    Ozonation followed by a biological activated carbon (BAC) filter is a common process of advanced water purification. Ozone can generate formaldehyde (FA) as a harmful by-product, while the subsequent BAC filter is efficient at removing FA. FA adsorption is limited on activated carbon because of its hydrophilic property and low molecular weight. Thus, biological degradation by biofilms ...


    By IWA Publishing

  • Preparation and characterization of nanoporous resin for heavy metal removal from aqueous solution

    New nanoporous resin (NPR), based on organic xerogel compounds, was prepared at 150 °C by sol–gel method from pyrogallol and formaldehyde mixtures in water using perchloric acid as catalyst. NPR was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and nitrogen porosimetry. The metal uptake characteristics were explored using ...


    By IWA Publishing

  • Glutaraldehyde – Health Hazards in Hospitals and Healthcare Facilities

    Glutaraldehyde is very similar to Formaldehyde in its structure and uses in the healthcare industry. Chemically, Glutaraldehyde exists at room temperature as a liquid, whereas Formaldehyde exists under those conditions as a gas, which can easily be dissolved in water. Glutaraldehyde is very similar to formaldehyde in its structure and uses in the healthcare industry. Chemically, ...


    By Atlantic Environmental, Inc.

  • Formation of aldehyde during ozonation of taste and odour compounds in water

    This study was conducted to investigate ketoaldehydes as another form of taste and odour (T&O) compound generated during the ozonation of commonly known T&O compounds, such as 2-methylisoborneol (MIB) and 2,4,6-trichloroanisole (TCA), which are typical T&O compounds. The ketoaldehydes generated during the ozonation process of T&O were studied. Results revealed that ...


    By IWA Publishing

  • Use of chemically treated sawdust for chromium removal from aqueous solutions: effect of process parameters

    This paper reports the effect of various process parameters on the removal of chromium from aqueous solution using formaldehyde–treated timber industry waste (sawdust). The adsorbent was characterised by Scanning Electron Microscopy (SEM) and Energy Dispersive X–Ray Analysis (EDAX). Influence of chromium concentration, pH, adsorbent dose and contact time on chromium removal from aqueous solution ...


    By Inderscience Publishers

  • Dangers of Formaldehyde used as adhesive in manufacture of wood-based panel products.

    Formaldehyde is a chemical widely used to manufacture building materials and various household products.  Wood based panels can emit small amounts of formaldehyde to the air and each panel type has a product standard governing the testing and certification of that product for formaldehyde emissions. Anyone involved in the manufacture of these products could be exposed to formaldehyde in ...


    By PPM Technology

  • Formaldehyde: 15 Products, Processes and Industries

    Formaldehyde is a colourless gas with a characteristic pungent odour. It's widely used in many industries and causes severe health issues if used inappropriately. Formaldehyde is highly toxic to humans, regardless of method of intake. Even very short-term exposure to formaldehyde irritates the eyes causing pain, redness, blurred vision and severe eye watering. It can irritate the nose and throat ...


    By PPM Technology

  • PFC Pollution in the office environment

    A new study suggests that exposure to chemical pollution could be a particular problem in the office environment. Researchers in the United States have found a link between Polyfluorinated Compounds (PFCs) in the air of a number of offices and their presence in the blood of the people working there. Polyfluorinated Compounds are water and stain-resistant and they have been used for many ...


    By Commercial Air Filtration

  • High concentrations of Aldehydes can be found in the hospital environment

    Both Formaldehyde and Glutaraldehyde are found in the hospital environment at higher concentrations than those to which the general population is exposed. Their possible adverse health effects are therefore very important to those working in certain parts of hospitals and to patients whose health status may be compromised. Both compounds are irritants and can cause sensitisation. Glutaraldehyde ...


    By PPM Technology

  • Organic and metallic pollutants in water treatment and natural wetlands: a review

    A literature review shows that more than 500 compounds occur in wetlands, and also that wetlands are suitable for removing these compounds. There are, however, obvious pitfalls for treatment wetlands, the most important being the maintenance of the hydraulic capacity and the detention time. Treatment wetlands should have an adapted design to target specific compounds. Aquatic plants and soils are ...


    By IWA Publishing

  • Detect and Monitor Formaldehyde with PPM Technology`s Formaldemeter

    In order to ensure employees and the public are not exposed to dangerous levels of Formaldehyde in the air, it is advised to detect and monitor levels with a suitable detection instrument. PPM Technology has significant experience in the design and development of instruments for accurate detection and measurement of Formaldehyde concentrations in the air. Our Formaldemeter ...


    By PPM Technology

  • Formaldehyde - Sources, Health effects and Safety

    Formaldehyde is a colourless gas with a characteristic pungent odour. It's widely used in many industries and causes severe health issues if used inappropriately. In order to ensure employees and the public are not exposed to dangerous levels of Formaldehyde in the air, it is advised to detect and monitor levels with a suitable detection instrument, especially in industries and buildings where ...


    By PPM Technology

  • Embalmers risk dangerous exposure to Formaldehyde

    Embalmers can be at risk of dangerous exposure to Formaldehyde. ...


    By PPM Technology

  • Swiss blue dye sequestration by adsorption using Acacia nilotica sawdust

    Batch adsorption studies were conducted to investigate the potential of Acacia nilotica sawdust as biosorbent for removal of basic Swiss blue dye from wastewater. Sawdust was subjected to formaldehyde pretreatment (FSD) and boiling (BSD). Maximum dye removal was observed after 120 min for all conditions – FSD: 97.5% and BSD: 95.9% at pH 6, 50 mgL−1 dye ...


    By Inderscience Publishers

  • Accurate detection and monitoring of formaldehyde

    The article discusses the importance of monitoring Formaldehyde in many workplaces and public buildings. And how recent technological developments by PPM Technology provides a simple soultion to this ...


    By PPM Technology

  • Studies upon the PPM Formaldemeter™ htV

    Report by NIOSH (National Institute for Occupational Safety and Health) following their studies upon the PPM Formaldemeter™ htV and another leading direct-reading formaldehyde monitor. ...


    By PPM Technology

  • Analysis of Formaldehyde simple and sensitive method for analyzing free formaldehyde

    Formaldehyde is used for disinfections of industrially manufactured products. However, it is detrimental to health and its potential oncogenicity led to the current utilization of a formaldehyde donor for long-term preservation. Such donors are in hydrolytic equilibrium with formaldehyde producing free formaldehyde on exposure to moisture. This method is used to quantify the free formaldehyde ...


    By Pickering Laboratories, Inc.

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