Exhaust Gas Articles

  • How can lead be so crucial, but also so toxic?

    Why is everyone talking about lead? Not long ago, like so many historic buildings in the UK, a local parish church near to where I live had the lead stolen from its roof.  Sadly, this is not so unusual and all the more distressing in this case, both because it holds special memories as the church where my wife and I were married, and also because the lead was stolen during heavy ...

  • Superheated water pretreatment combined with CO2 activation/regeneration of the exhausted activated carbon used in the treatment of industrial wastewater

    This paper examines a novel method of regenerating saturated activated carbon after adsorption of complex phenolic, polycyclic aromatic hydrocarbons with low energy consumption by using superheated water pretreatment combined with CO2 activation. The effects of the temperature of the superheated water, liquid–solid ratio, soaking time, activation temperature, activation time, and CO2 ...


    By IWA Publishing

  • Is it really possible to improve superlatives? - Absolutely, with positive displacement blowers from AERZEN! The new generation Delta Blower G5plus is on the market!

    AERZEN set standards with the Delta Blower positive displacement blowers and raised the bar ever higher for performance, economic efficiency and environmental protection. To expand upon the success of the blower series, an exciting new design sets energy saving records. The innovative assembly concept combines proven features and newly-gained advantages. Delta Blower G5plus achieves up to 5% more ...

  • Case study - Coating/hot foil stamping

    Location: New Jersey Equipment: Catalytic Recuperative Oxidizer 12,000 scfm capacity (1994 vintage) Installed: Fall 2003 Problem: Start-up company needed emission control with low capital and operating costs. Problem Details: The founders of this start-up had extensive experience with foil coating, as ...


    By Kono Kogs, Inc.

  • Slay The Certification Uncertainty Dragon

    Passing the CIH, the ASP, the CSP, or the CHMM exam is a valiant quest filled with hardship and uncertainty. You set out on the arduous journey to pass the exam. You know the exam will be tough, but with determination and persistence, you’re confident you will prevail over the examination beast. You work hard. You study every night for 2 hours after your kids go to bed. ...


  • Pet Crematorium - Bespoke pet cremation facility - Case Study

    TodaySure have installed numerous pet crematoria, throughout the World. Our most recent innovative design incorporated two stacked individual pet cremators, fuelled by the exhaust gases of the adjacent automatically loaded mass burn unit, thus minimising fuel input and reducing carbon ...


    By Todaysure Matthews

  • Simultaneous regeneration of exhausted zeolite and nitrogen recovery using an air stripping method at alkaline pH

    Ammonium nitrogen recovery using natural zeolite from the permeates of anaerobic membrane bioreactors was investigated with batch and continuous experiments. Regeneration of exhausted zeolite was compared between mechanical shaking and air stripping, and experimental results showed the superiority of air stripping over the shaking. Liquid circulation and air flow rates were optimized in a ...


    By IWA Publishing

  • Case study - Georgia Gulf Chemical & Vinyl, LLC, Aberdeen, MS

    Our company purchased a Sidel SRU 400-80 condensing economizer from Marspec in 2010. Today it operates on an 80,000 pound/hr boiler, but was sized to also handle the exhaust flow of a second boiler of 40,000 lb/hr in the future. The economizer has run without requiring any maintenance, and has worked effectively in the time since it was installed. I was really surprised when I saw how much ...


    By Sidel Systems USA Inc.

  • High Rate Biological Odour Control Demonstration for Biosolids Exhausts

    Abstract Biorem has successfully demonstrated its high rate odour control system for biosolids exhausts at Ashbridges Bay sewage treatment plant in Toronto, Ontario. The demonstration used XLD™, a biofiltration media engineered specifically for biosolids odours. The system has achieved 95% odour removal in less than 20-s Empty Bed Residence Time (EBRT) despite high concentration of ...


    By Biorem Technologies Inc.

  • ‘Everyone is exhausted and frustrated’: exploring psychosocial impacts of the lack of access to safe water and adequate sanitation in Usoma, Kenya

    The lack of access to safe water and adequate sanitation pose significant health challenges for many individuals and communities in low and middle-income countries. Aside from direct health issues, the lack of access to safe water and adequate sanitation is increasingly associated with psychosocial concerns that affect the wellbeing of individuals and communities. However, the nature of these ...


    By IWA Publishing

  • Total Exhaust Biosafety Cabinet Upgrade at Research Facility Provides Significant Energy Savings

    When Harvard’s Biology Research Infrastructure (BRI) facility opened in 2006, they required four biological safety cabinets to provide primary containment during animal procedures. In the selection process, workspace containment and isolation requirements, operation modes for non-use periods and maintenance, building integration, and the energy burden to the building system were all ...


    By The Baker Company

  • Case study - Better maintenance starts with better documentation

    OXIDIZER SERVICE SERIES: PART 1 Your oxidizer system is both a significant investment in - and a long term commitment to - environmental compliance. Part of properly servicing your oxidizer system is maintaining the design documentation associated with that system. In the oxidizer design world, National Fire Protection Association (NFPA) standards are often viewed as good practice. However, not ...

  • Bernaraby Landfill Power Plant - Case Study

    Clarke Energy has been contracted to supply and deliver one of GE's Jenbacher 1MWe containerised gas engine to LGI (Landfill Gas Industries Pty. Ltd.) for their new landfill gas power station project at Bernaraby, Queensland, Australia which will be operational in 2016. Generation Capacity The high efficiency ...


    By Clarke Energy

  • Automotive: Scrubber system removes HCL from Exhaust case study

    Although Indiana’s environmental protection agency has not yet added hydrochloric acid (HCl) standards to its Title 5 regulation of emissions sources, Allomatic Products Co., Sullivan, IN, was determined to erase HCI vapors from its plant discharge. In the mixed industrial/ residential neighborhood where its manufacturing plant is located, Allomatic wanted to be known as a good neighbor. ...


    By CR Clean Air Group, LLC

  • The Chemical Aspect of NOx Scrubbing

    With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOx (Nitrogen Oxides) produced. NOx is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NOx is produced in a variety of ...


    By CR Clean Air Group, LLC

  • Metals: Scrubber System Removes HCL from Exhaust Case Study

    Although Indiana’s environmental protection agency has not yet added hydrochloric acid (HCl) standards to its Title 5 regulation of emissions sources, Allomatic Products Co., Sullivan, IN, was determined to erase HCI vapors from its plant discharge. In the mixed industrial/ residential neighborhood where its manufacturing plant is located, Allomatic wanted to be known as a good neighbor. ...


    By CR Clean Air Group, LLC

  • Abbott Labs North Chicago, IL case study

    In process manufacturing of a ScrubPac Thermal Oxidizer Scrubber System with Quencher and pump skid components shown. Scrubber system designed to remove HCL for meeting Pharmaceutical MACT standards. System designed to clean over 61000 ACFM of 1700 deg. F oxidizer exhaust ...


    By Bionomic Industries Inc.

  • Case study - Engine test cell exhaust: RTO

    Overview A Mid-western outboard engine manufacturer bought a three year-old plant for the production of its marine engines. When finished, the engines are removed from the assembly line and run for quality control. The 25,000 SCFM of exhaust from testing contains volatile organic compounds (VOCs) that require regulatory compliance. Also within this exhaust is a great deal ...

  • Cereform - case study

    As part of the global AB Maury Group, Cereform is providing a comprehensive range of technical bakery ingredients like dough conditioners and softeners, bread mixes and concentrates, soya flours, cake mixes and concentrates, donut mixes and concentrates and toppings, fillings and icings. During the production of these products they have various dust producing processes. One of the processes ...


    By Western Air Ducts (UK) Ltd.

  • Adsorption of hexavalent chromium by crosslinked chitosan–iron(III) in an air-lift reactor

    Column experiments were conducted in an airlift reactor containing a certain amount of crosslinked chitosan–iron(III) (Ch-Fe), to examine the effects of adsorbent mass, flow rate, and influent concentrations on Cr(VI) removal. The breakthrough time increased with an increase in Ch-Fe mass, but decreased with an increase in initial Cr(VI) concentration. The exhaustion time decreased with an ...


    By IWA Publishing

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