Air Cleaning Articles on Environmental XPRT

Curtailing Contamination Hydrocarbon Engineering July 2017

During planned shutdowns, the equipment in refineries and petrochemical plants has to be checked. The downtime can require several weeks when tanks, vessels, distillation columns, and pipes have to be drained and cleaned for i maintenance or repair. Shutdowns are labour-intensive and require accurate scheduling and organisation between all projects, as often hundreds of workers are ...

Aug. 16, 2017

By Kurita

In the queue for clean air

The National Emissions Ceilings Directive (NECD), adopted in 2001, defines the maximum emissions on a national level for four major air pollutants that have a high impact on human health and the environment. These are: sulphur dioxide, nitrogen oxides, volatile organic compounds and ammonia. The Directive will undergo revision in 2008, which would set new interim air quality targets and related ...

Jun. 1, 2008

By European Environmental Bureau

Air as Clean as the Driven Snow

While California is the most populated state in the nation, it is also home to some of America’s most natural and pristine wilderness and recreation areas. One such venue is the Snow Summit Ski Resort in Big Bear Lake. Situated just over two hours from Los Angeles, Snow Summit is a fullservice winter resort that opened in 1952 and operates an average of 142 days a year. ...

Feb. 1, 2006

By Johnson Matthey Emission Control Technologies

A new vision for clean air

When President George H.W. Bush signed into law the Clean Air Act Amendments (CAAA) of 1990, he put in place a precedent-setting statute that completely revamped our nation’s approach to improving air quality. That statute was an earnest commitment to environmental protection; the comprehensive air pollution control strategy established in it provided state and local regulators with tools to make ...

Feb. 1, 2005

By Air & Waste Management Association (A&WMA)

The Right Mix for Clean Air

Reducing air pollution is an increasingly important topic all around the world. Many governments—also in developing countries—set new limits for emissions such as nitrogen oxides in flue gas. Sulzer offers advanced mixing technology for flue gas cleaning. The installation in a large power plant shows that these high-performance mixers can cope with the most difficult requirements. ...

Jul. 7, 2015

By Sulzer Management Ltd

Stakeholder Perspectives on the Clean Air Interstate and the Clean Air Mercury Rules

In a follow-up to last month’s detailed overviews of the Clean Air Interstate Rule (CAIR) and the Clean Air Mercury Rule (CAMR), this month EM presents perspectives on the two rules from representatives of a range of stakeholders, including EPA, the states, the regulated community, and the environmental community. Last month, EM featured detailed overviews of two major air quality regulations ...

Aug. 1, 2005

By Air & Waste Management Association (A&WMA)

Clean air and fast return to operation

Zero styrene in the Renovation of Industrial Processing plants and Storage tanks Renovation without hassle In industrial processing and chemical storage plants the continuity of operation is of major importance. Plant downtime may have significant financial implications. Also equipment breakdown may negatively affect plant safety as in many cases dangerous ...

Dec. 1, 2012

By HMT Inc.

Technology: clean air’s unsung hero

Last year, we celebrated the 40th anniversary of the U.S. Clean Air Act (CAA) and the 20th anniversary of the 1990 Amendments to the CAA. The CAA has been a huge success. From 1990 to 2008, emissions of six common pollutants were down 41%, while gross domestic product grew 64%. Emissions of volatile organic compounds dropped 31%, carbon monoxide dropped 46%, and sulfur dioxide dropped 51%. Lead ...

Jun. 1, 2011

By Air & Waste Management Association (A&WMA)

Cleaning up by cleaning up

Historically, some big businesses have made big messes. Greenhouse gas emissions, oil spills and unsafe water have become unsavoury but all-too-commonplace topics in the news and industry is beginning to sit up and take notice. Within the past couple of decades, businesses have been cropping up in Saskatchewan with the goal of cleaning up others’ messes - or simply keeping a mess from ...

Dec. 30, 2006

By OZONATOR Industries Limited

Dry/Wet Scrubbers for Clean Air Compliance

Forthcoming requirements of Ihe Clean Air Act Amendments of 1990 will inventory many more specific chemicais considered hazardous. From acetaldehyde lo xylenes, the list regulated under the air toxics program includes 189 hazardous air pollutants (HAPs). That number may grow. The Environmental Protection Agency (EPA) intends to add another 100 of more chemicais under the “prevention of accidental ...

Nov. 1, 1992

Air/water cleaning for the control of particulate fouling

Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...

Mar. 1, 2010

By IWA Publishing

Two Landmark Interpretations of the Clean Air Act

The most recent U.S. Supreme Court term is notable for two landmark interpretations of the Clean Air Act (CAA). In Massachusetts vs. EPA (U.S., No. 05-1120, 4/2/07), the court held that greenhouse gases (GHGs) are air pollutants subject to regulation under the CAA, overruling an interpretation by the Bush administration. In Environmental Defense vs. Duke Energy Corp. (U.S., No. 05-848, 4/2/07), ...

Aug. 1, 2007

By Air & Waste Management Association (A&WMA)

Air bubbles enhance membrane cleaning: a future perspective

Abstract Air bubbles generated using a novel micro-bubble generator have displayed a dramatic enhancement in cleaning efficiency when used in conjunction with specially formulated cleaning chemicals. In order to establish the effect of this application on membrane performance, a series of experiments were conducted using both a flat sheet test rig and a small scale pilot plant. ...

Oct. 22, 2015

By Genesys International Limited

Clearing the air on “free Air CFM” - Specs for portable duct cleaning vacuums

Many times when researching equipment for duct cleaning vacuums you will find manufacturers posting the CFM suction ratings on their vacuums as “Free Air” or “bench Test”. The Free air test is the rating on the impeller wheel of the vacuum, simply put it is the maximum amount of airflow the impeller can produce with out any restriction. It seems as though many ...

Dec. 10, 2012

By Hypervac Technologies

Keep your air clean with Wet Dust Collectors

Wet dust collectors use liquid — often but not always simple water — to capture and separate dust, mist, fumes, and other particulate matter from a stream of flowing gas — often but not always simple air. Some wet dust collectors spray liquid in a sheet across the stream of gas; others bubble the gas through ...

Dec. 1, 2012

By ProVent, LLC

Dry/Wet Scrubbers for Clean Air Compliance

Air-scrubbing venturis and towers may be the answer to clean air compliance for small- to medium-sized companies. Forthcoming requirements of the Clean Air Act Amendments of 1990 will inventory many more specific chemicals considered hazardous. From acetaldehyde to xylenes, the list regulated under the air taxies program includes 189 hazardous air pollutants (HAPs). That number may ...

Feb. 16, 2016

By CR Clean Air Group, LLC

Clean energy: How much hot air?

NewScientist’s January 28 issue is likely to unsettle clean energy advocates – but it is worth the read. The cover article, “Power paradox: Clean might not be green forever,” posits that even renewable energy can warm the planet, and eventually change ...

Feb. 1, 2012

By Energy Efficiency Markets LLC

Industrial applications – Air analysis in clean air room - Case study

Context & Challenges To ensure people’s safety and a good repeatability of industrial process, the analysis of ambient air is crucial. Especially, electronic boards are produced in clean air room by complex lithographic process using very reactive chemicals. The nature and concentration of volatile compounds can be different depending on the chemical process and can also vary ...

Sep. 15, 2015

By Chromatotec Group

GHG regulation under the clean air act – recent developments

EPA’s GHG Tailoring Rule and Senate Action On October 27, 2009, EPA published the Prevention of Significant Deterioration (PSD) and Title V Greenhouse Gas (GHG) Tailoring Rule in the Federal Register, followed by a 60-day public comment period that ended on December 28, 2009. The proposed rule represents EPA’s effort to decrease the number of sources subject to major source ...

Apr. 5, 2010

By Trinity Consultants

Clean air research multi-year plan 2008-2012

The Office of Research and Development’s (ORD) Multi-Year Plans (MYPs) describe what research ORD proposes to accomplish over the next 5-10 years in a variety of areas. The MYPs serve three principal purposes: to describe where the research programs are going, to present the significant outputs of the research, and to communicate the research plans within ORD and with stakeholders and clients. ...

Jun. 1, 2008

By US EPA - Environmental Protection Agency

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