en1822-5 Articles

  • Modeling for NAAQS Part 1: How to select the appropriate output for NO2

    The U.S. National Ambient Air Quality Standards (NAAQS) for 1-hour SO2, 1-hour NO2, and 24-hour PM2.5 use a very particular format. It is very important for all modelers (both within and outside of the U.S.) to understand how AERMOD handles this. In particular, U.S. users need to be familiar with the ...

  • Old container, new station: WS600 part of air quality measurement system in Kutaisi

    An AQM station including a Lufft WS600 all-in-one weather sensor was installed by our local system integrator ELKO LLC in Kutaisi, Georgia in May 2017. It was mounted on an existing measurement container provided by the customer LEPL National Environmental Agency. The system consists of a Fidas® 200 fine dust monitor and immission measurement system detecting PM2.5 and PM10 particles ...

  • Ruzomberok (Slovakia) Industrial WWTP - Case Study

    Number of Tanks: 4 Total Volume: 10,000 m³ Water Depth: 4.0 m SOTR Standard Oxygen Transfer Rate: 5,095 kgO2/h Total Airflow: 61,680 Nm3/h No. of AEROSTRIP® Diffusers: 3,000 Ružomberok is a city in northern Slovakia with around 30,000 inhabitants. The local ...


    By Aquaconsult Anlagenbau GmbH

  • Focus on Microfiltration Part 3: Extending Service Life Using Prefiltration

    Last month we examined filter selection strategies for maximizing service life in continuous use applications.  In this 3rd installment, we will examine the use of prefilters to extend service life. Clarifying liquids with high levels of suspended solids is challenging, especially for applications requiring submicron filtration.  In these applications, filter users who experience ...


    By Sterlitech Corporation

  • Danone Bottling Plant Increases Production Capacity with Addition of Aeration without Modifying Existing Infrastructure

    Overview Aguas Danone de Argentina is a leader in the national mineral and flavored water market, with well-known brands such as Villavicencio, Villa del Sur, Levité, and Ser. Aguas Danone de Argentina is part of the Danone Group, world leader in the food and beverage industry, with products reaching 120 countries on 5 continents. The bottling plant located in ...

  • Kranj (SLO) Municipal Plants - Case Study

    Digester: 5.000 m³ sewage sludge digestion Scope of services: sewage sludge digester agitator, flare, gas equipment, gas storage, desulphurization Start-up: ...

  • Methods of Purification by Water Innovations, Inc.

    Carbon Filtration is used for several reasons. Its primary purpose is the reduction of chlorine to less than 0.1 ppm. Chorine can damage softener resins, reverse osmosis membranes, and mixed bed deionization resins. Activated carbon will also help control tastes and odors, provide organic and hazardous organic chemical reduction, and some particulate reduction. ...


    By Water Innovations, Inc

  • A new and improved courtyard at Wynberg Girls High School in Cape Town with Geoplast Drainroof - Case Study

    Drainroof, Geoplast’s solution for roof gardens made of recycled low-density propylene, was recently chosen for alterations at Wynberg Girls High School in Cape Town. Noero Architects, a prestigious architectural firm with offices in Cape Town and Port Elizabeth, conceived and supervised the project, while Abrach Construction carried it out. De Villiers & Hulme participated as ...


    By Geoplast US Corp.

  • Influence of the Stirring Mechanism on the Precision of the Fusion for VITRIOX GAS and ELECTRIC

    Introduction Homogenization of the melt is an important aspect of sample preparation for X-ray fluorescence analysis using fusion. Whether the fused bead breaks or remains mechanically stable after cooling, depends largely on the homogenization. Once a stable fused bead has been obtained, it is only possible to judge if the sample is truly homogeneously dissolved in the flux by way of ...


    By Fluxana GmbH Co. KG

  • 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

  • Hazardous waste and not, Baioni-Dicatech system

    The identification, characterization and restoration of contaminated areas now represent a big environmental issue, both at European and national level. In the major industrialized countries the issue of contaminated land has come out in all its gravity in the late seventies when, against a widespread awakening of environmental consciousness, important pollutions events emerged. Consequently, in ...


    By Baioni Crushing Plants Spa

  • CS Bioenergia (BRA) Disposal Company - Case Study

    Digester: 2 x 5.000 m³ Post Digester: 3.400 m³ Gas storage: 3.250 m³ Input substrates: primary and secundary sludge, food waste Scope of services:  concept creation, consulting, detail engineering, delivery of equipment, general project supervision, start-up, operational support and service Estimatet completion date: ...

  • On PM 2.5 Filters, Let’s just clear the air between us; ok?

    In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community.  In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple.  Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for ...


    By Sterlitech Corporation

  • AVEDØRE (Denmark) Municipal WWTP - Case Study

    Number of Tanks: 4 Total Volume: 80,000 m³ Water Depth: 3.5 m SOTR Standard Oxygen Transfer Rate: 4,270 kgO2/h Total Airflow: 58,720 Nm3/h No. of AEROSTRIP® Diffusers: 1,600 Avedøre is part of the suburbs in the south-west of Denmark’s capital ...


    By Aquaconsult Anlagenbau GmbH

  • Maintenance To-Do: Coil Cleaning

    A coil-cleaning program should be an integral part of maintaining some kinds of process cooling equipment. Most people think of coil cleaning as a building or facility prepares to turn on the air-conditioners for another season. Admittedly, spring is a perfect time to put such cleaning and maintenance at the top of the to-do list. Condenser and evaporator coils are an integral part of HVAC ...


    By Evapco Inc.

  • 5 of the Deadliest Professions in the UK

    A study conducted by the Health & Safety Executive has shown that a more people have died in the workplace than British soldiers in Afghanistan since 2001 – a startling statistic which shows how there is still some work to be done to ensure safety measures are met. With the exclusion of road accidents on the way to workplaces to account for, here are the five jobs where you might want ...


    By Safety Media Ltd.

  • 5 fashion-forward fibres

    Famous designers and popular fashion brands have recently looked into going green by using eco-friendly fibres in the manufacture of clothing and other apparel. Many have used organically grown cotton, hemp and natural wool, yet few have looked much further. Mother Nature has many versatile products up her tailored sleeve, so take a look at some of the future trends in fashion fibres. 1. ...


    By green24

  • 5 Interesting Uses of Magnets

    Magnets usually conjure up the image of complex applications in different industries and in the home they are used to hold items on the fridge door, top on the list being next week’s shopping list, your toddler’s drawing from school and a duty roster for your older kids. More uses have been devised for the simplest of activities in the home without having to break the bank. ...


    By Stanford Magnets

  • Dioxins and Furans on the Equity-5

    Dioxins and furans are byproducts of several different industrial processes, including incineration and paper bleaching. The extreme toxicity of several of these compounds has made their analysis in environmental samples increasingly important. In this application, the 60m x 0.25mm ID x 0.25µm Equity-5 was used to separate all 17 of the 2,3,7,8-substituted PCDDs and PCDFs listed in US EPA ...


    By MilliporeSigma

  • 5 Achievements from Germany’s “Energiewende”

    Germany is in the midst of an unprecedented clean energy revolution. Thanks to the “Energiewende,” a strategy to revamp the national energy system, Germany aims to reduce its overall energy consumption and move to 80 percent renewable energy by 2050. The country has already made considerable progress toward achieving this ambitious goal. In fact, other ...

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