plastic media Articles

  • Upgrading effluent quality with a plastic media based process

    Wastewater treatment plant retrofits worldwide are motivated by two main developments: changes in effluent quality regulations, population growth in certain areas. In recent years, the EU (under directive EEC/271/91) and US (Section 304A of the Clean Water Act) have launched programs for nutrient removal in all ...

  • Paint Stripping Using Plastic Media: Carstrip

     Carstrip Pty Ltd has established a dry process for stripping paint from motor vehicles undergoing panel repairs or restoration. The process uses ground plastic media in a sandblasting-type process to remove the paint from the vehicle without damaging the metal. The process has eliminated the generation of waste sludge associated with chemical stripping processes, and has reduced the labour ...


  • The use of plastic media in a movable bed model to study sedimentary processes in rivers

    The use of plastic media was evaluated for modelling sedimentary processes in rivers using a movable bed model (MBM). From gradations within the range of 0.17–2 mm, the size of the thermoset plastic media was colour coded in order to better visualise complex flow processes. Equations developed by Engelund–Hansen and Schoklitsch were used to predict sediment transport and establish the type of bed ...


    By Inderscience Publishers

  • Nitrification/denitrification in swine wastewater using porous ceramic sticks with plastic rings as supporting media in two-stage fixed-biofilm reactors

    This study evaluated the performance of oxic-anoxic fixed-biofilm reactors (FBRs) using porous ceramic sticks with plastic rings as supporting media for nitrogen and organic carbon (as COD) removal from swine wastewater. Experimental results indicate that the removal efficiency of NH4+-N increased to 86–92% from 52–98% as the volumetric ammonium-nitrogen loading rate increased to 0.25 kg ...


    By IWA Publishing

  • Case study - Plastic components painting

    Overview A plastic injection molding company in Wisconsin is known as a world-class leader in the industry for their secondary decorating and assembly capabilities. One of their eleven facilities not only performs plastic injection molding but also provides the organization with decorating capabilities such as painting, laser etching, laser marking, pad printing and assembly of ...

  • Compostable Plastics And Environmental Marketing Claims

    According to a bottled water survey conducted by Perception Research Services International (PRS) for Brand Packaging published in August 2011, where shoppers were interviewed in person to gain some insights on marketing claims, environmental and recycling messages were misunderstood and not even noticed by a majority of consumers interviewed. In fact, only 50 out of 200 shoppers even noticed the ...


    By BioCycle Magazine

  • Media market reduced their collection costs by 40%

    Media Markt used to collect 75% of their waste in containers unsorted. A costly, inefficient and definitely non sustainable procedure. Time for a change, the holding decided. In 2009 almost every store has a baler for cardboard and plastics and an EPS-compactor for Styrofoam. “When comparing business results with our sister company Saturn in Germany, it showed that they sorted 95% of their ...


    By Bramidan Balers

  • Recycling of plastic waste by density separation: Prospects for optimization

    A review of existing industrial processing and results of alternative processing investigations for separating solid mixtures and specifically recycling plastic waste by density separation is presented. Media density separation is shown to be fundamental for separation and/or pre-concentration in the recycling of plastics. The current use of static media processes limits the capacity and size of ...


    By SAGE Publications

  • What will it take to get plastics out of the ocean?

    From drones to filters to artificial islands, innovators are working to reduce the threat thousands of tons of trash pose to marine ecosystems. A few palm trees stand strong in the salty breeze. Located on the southern tip of the Pacific island chain of Hawaii, Kamilo Beach is an isolated stretch of black volcanic shoreline in the middle of nowhere. Just a few hundred yards ...


    By Ensia

  • New research may solve the problem of plastic wastes

    GLOBE-Net, May 8, 2013* - Plastic - it is an indispensable part of our everyday lives and an almost indestructible part of the garbage that daily ends up in our landfills, incinerators, junk yards, in our rivers or oceans, or in the bellies of fish or animals that form part of our food chain.  Every year, over 260 million tonnes of plastic are produced globally. That is ...


    By GLOBE Foundation

  • Media Markt reduced their collection costs by 40% - Case Study

    Previously the Dutch chain store for electronics, Media Markt, saw 75% of their waste end up in a container unsorted. This was too costly and inefficient. Now almost every store has a baler for cardboard and plastics and an EPS-compactor for Styrofoam. Media Markt used to collect 75% of their waste in containers unsorted. A costly, inefficient and definitely non ...


    By Bramidan Balers

  • Performance of permeable media rotating reactors used for pretreatment of wastewaters

    The impact of organic loading rate (OLR) on carbonaceous materials and ammonia removal was assessed in bench scale rotating media biofilm reactors treating real wastewater. Media composition influences biofilm structure and therefore performance. Here, plastic mesh, reticulated coarse foam and fine foam media were operated concurrently at OLRs of 15, 35 and 60 g sCOD ...


    By IWA Publishing

  • Advantages and basic facts for the use of Lenzing PROFILEN based filter media

    Normal PTFE filter bags have a very good chemical resistance but on the other hand they do not have a high dust separation efficiency. Lenzing PROFILEN® is a compromise between a high efficiency and a high flow rate after cleaning of gases with all the positive aspects of normal PTFE bags. Basics To acquire a better feeling and understanding for the advantages of Lenzing PROFILEN® it is necessary ...

  • Introducting a New Media for Fixed-Film Treatment in Decentralized Wastewater Systems

    ABSTRACTBoth naturally occurring and artificial media have been used to treat wastewater in small community settings. Systems using naturally occurring media include sand filters and peatbased biofilters. Artificial media include open cell foam, textiles, and plastics. All the above operate as fixed-film systems, in that attached growth microorganisms are encouraged to colonize and reproduce in ...

  • Case study -New media makes RTO natural gas usage a rarity!

    Overview Tekra Corporation has always had an eye on their energy conservation. They are a custom coater of plastic films in Wisconsin where state regulations require over 98% of the Volatile Organic Compounds (VOCs) emitted from their process be destroyed in an oxidizer system. While considering their first oxidizer system, Tekra's Engineers did their homework and invested in an early ...

  • Plastic debris and policy: Using current scientific understanding to invoke positive change

    Captain Charles Moore introduced the world to the “Great Pacific Garbage Patch” in the mid‐1990s, and images of plastic debris in the oceans began to sweep the media. Since then, there has been increasing interest from scientists, the public, and policy makers regarding plastic debris in the environment. Today, there remains no doubt that plastic debris contaminates aquatic (marine and ...


    By John Wiley & Sons, Ltd.

  • CANDI Plastic opts for new QR-class for material recycling

    First real-life application for the UNTHA QR-class: In July this year, CANDI Plastic Recycling began using a QR1700 shredder for ...


    By UNTHA Shredding Technology

  • We need a global treaty on plastics. Here’s what it should look like.

    Plastic pollution is more than an ocean problem, and it’s time we treat it as such. Plastics have boosted our economy because they are versatile, cheap and durable. Yet, thanks to these same traits, in the course of establishing a US$750 billion global industry, we have ...


    By Ensia

  • Demonstration Of An Integrated Fixed Film Activated Sludge (Ifas) System For Enhanced Nitrification Using A New Free Moving Media

    Between October 1995 and June 1998, a study was conducted at the Waterdown STP to evaluate IFAS options for reducing the cost of retrofitting larger plants in the province of Ontario for year-round nitrification. Cord media options were evaluated first, but significant detractors to this approach were encountered such as worm growth and flow short circuiting. As a result, a free-floating plastic ...


  • Effects of physical disturbances on media and performance of household-scale slow sand (BioSand) filters

    Point-of-use (POU) water treatment provides households in rural and remote communities with a means of obtaining greater control over their water quality and its effects on human health. One of the most prevalent POU interventions, the BioSand filter (BSF), is a household-scale, intermittently operated slow sand filter used by over 300,000 households. The sand and gravel media within BSFs can be ...


    By IWA Publishing

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