absorbent fiber Articles

  • Mixing of Drying Air: Increasing the Absorbency

    High-quality tissue paper is today produced using TAD (through-air-drying) technology, which is widely established as the most efficient drying method to increase bulk and softness in commercial tissue production. In the TAD process, it is essential to ensure uniform temperature distribution in the stream of drying air in order to achieve superior quality in terms of the softness and absorption ...


  • History of super absorbent polymer chemistry

    Until the 1980’s, water absorbing materials were cellulosic or fiber-based products. Choices were tissue paper, cotton, sponge, and fluff pulp. The water retention capacity of these types of materials is only 20 times their weight – at most. In the early 1960s, the United States Department of Agriculture (USDA) was conducting work on materials to improve water conservation in soils. They ...

  • Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors

    To understand the mass transfer behaviors in hollow fiber membrane contactors, ozone fluxes affected by various conditions and membranes were investigated. For physical absorption, mass transfer rate increased with liquid velocity and the ozone concentration in the gas. Gas flow rate was little affected when the velocity was larger than the critical value, which was 6.1 × 10−3m/s in this ...


    By IWA Publishing

  • Comparison between ultrafiltration and nanofiltration hollow-fiber membranes for removal of natural organic matter: a pilot study

    Increasing trends of natural organic matter (NOM) in surface water in Nordic countries may cause future problems for drinking water producers. Emerging membrane technology, such as ultrafiltration (UF) and nanofiltration (NF), has the potential to produce safe drinking water of good quality from sources with high organic concentrations. In the present pilot study, surface water from three ...


    By IWA Publishing

  • Carcinogens are Cancer Causing Chemicals

    What’s at Stake? A carcinogen is any substance that can cause cancer. They are chronic toxins that cause damage after repeated or long-term exposure. For some people, the workplace can be a source of exposure to some carcinogens, such as asbestos, benzene, or formaldehyde. What’s the Danger? Benzene is a colorless, flammable liquid with a sweet ...


    By SafetySmart

  • Using Coir Geotextiles for soil erosion control

    One of the most effective and yet natural soil erosion prevention techniques is the use of Coir Geotextiles fabrics ( Woven Geotextiles). Used extensively to prevent environmental degradation Geotextiles have no synthetic material but is instead made out of an organic fiber, coir, which is extracted from the husk of a coconut. It is strong, durable, water proof and is one of the few natural ...


    By CoirGreen

  • An Unmatched Combination of Carpet Cleaning Machines and Green Chemicals

    A nice carpet can perk up the appeal of your room. But, as carpet fibers are highly absorbent, they quickly accumulate dust, dirt, oil, and stains. The traditional technique of vacuuming is effective only for removing particles on the surface. Constant scrubbing with harsh brushes can actually do more harm than good to your carpets because delicate fibers can be damaged by excess water and ...


    By Daimer Industries Inc.

  • CoirGreen™ Geotextiles - An Effective Soil Erosion Prevention Method

    “The different coir types and their characteristics have made coir the most versatile natural fiber ...


    By CoirGreen

  • Confirmation of the correlation between membrane fouling in microfiltration and biopolymer concentrations in various Japanese surface waters

    A variety of surface waters used for drinking water sources were collected from different parts of Japan to investigate a correlation between the concentration of hydrophilic biopolymer (e.g. proteins and polysaccharides) in the feed water and membrane fouling in microfiltration. Hollow-fiber membranes made from polyvinylidene fluoride with a nominal pore size of 0.1 μm were used in the ...


    By IWA Publishing

  • Issue highlight: Air Effluent Control RotaBed Scrubber: One way to meet Cluster Rules in the bleach plant case study

    The so-called Cluster Rule promulgated by the US EPA at the end of 1997 seeks to legislate control of both air and water emissions under one, all-encompassing regulation. With proper design and application, Cluster Rule requirements can be met easily and economically on modern kraft bleaching sequences using fluidized bed gas scrubbing technology such as the Rotabed, a product of Bionomic ...


    By Bionomic Industries Inc.

  • Carpet Cleaner That You Need for Restaurant Maintenance

    Maintaining carpets is not an easy job. Due to their porous nature, carpets absorb dirt, oil, and stains really fast. When it comes to high-traffic areas such as malls, schools, retail stores, or restaurants, the tough cleaning job gets tougher. As more people walk into these places, the more dust, dirt, and stains the carpets collect. To get exceptional cleaning results, it is best to ignore ...


    By Daimer Industries Inc.

  • Walk Behind Carpet Washing Systems for Commercial Applications

    Cleaning carpets in residences and small offices involves maintaining just a limited space. However, when it comes to full-fledged commercial and industrial carpet maintenance, large carpeted areas need to be cleaned. For this reason, such applications demand the use of portable and compact carpet cleaners that are highly efficient and durable. If you are looking for powerful and versatile carpet ...


    By Daimer Industries Inc.

  • Process analytics in ethylene oxide and ethylene glycol plants – Case Study

    Perfect solutions from Siemens Process Analytics Ethylene Oxide (EO) Ethylene oxide, C2H4O, under normal conditions, is a colorless, flammable gas. It is very toxic and carcinogen. Industrial production started in 1925 using the chlorohydrin process and was improved in 1931 by introducing the much more economic direct catalytic oxidation method. Currently, ...

  • Casebook New Scrubber Technology reduces installation costs case study

    A100,0000-actual-cubic-feet-per-minute (acfm) RotaBed scrubber recently supplied to Tri-Gen Biopower for sulfur dioxide (S02) control at Gilman Paper, St. Mary's, Ga., saved the company an estimated $150,000 in installation costs-Installation of a heavier packed tower would have required extensive reinforcement of an existing steel support structure, said Ken Schifftner, product/district manager ...


    By Bionomic Industries Inc.

  • Analysis of TNT and RDX in groundwater

    MATRIX: Water ANALYTE: TNT and RDX LIMIT OF DETECTION: TNT 1 ppb (mg/L), RDX: 5 ppb (mg/L) BACKGROUND: This application describes a field screening method for determining TNT and RDX concentrations in water. The method uses solid phase extraction to remove and preconcentrate the analytes from water. In the method, a 2 ...


  • CoirGreen™ : Helping you think and act green

    Many of us depend heavily on the environment to make a living. Yet, knowingly or unknowingly to us, our actions can have negative impact on the environment, such as ...


    By CoirGreen

  • What is a Spectrometer?

    The characteristics of a white LED light differs greatly, when compared to a yellow CFL. Without any special tools, one can see that the LED emits a clear white color, while the CFL generates yellow light. Going one step further, using a spectrometer, one will be able to “dissect” the light sources and see that they are composed of other colors in the visible light spectrum, such as ...


    By Larson Electronics LLC

  • From Wastewater Treatment to Sweet Pineapples

    In wastewater treatment, ammonia that is removed from sewage used to be discharged directly to the atmosphere. Nowadays, studies have identified that ammonia emissions are of major concern to air quality. This has led to a new way of thinking. Sulzer offers modern closed-air-loop systems for wastewater treatment that transform ammonia into a common soil fertilizer. This reuse of a waste product ...


    By Sulzer Management Ltd

  • Application of a Medium Pressure UV System for the Treatment of N-Nitrosodimethylamine (NDMA)

    N-nitrosodimethylamine (NDMA) was first detected in 1990 as a problem pollutant in drinking water wells at levels as high as 3,000 ppt in Elmira, Ontario, Canada. The waste from a large chemical plant over many years had led to the contamination of the drinking water wells for the community. After extensive evaluation and testing, it was determined that UV photolysis was the most effective ...

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