Sulfur Dioxide Articles on Environmental XPRT

Scrubbing Sulfur Dioxide

Dec. 1, 2002

By Shell Cansolv – Gas absorption solutions

CANSOLV® SULFUR DIOXIDE SCRUBBING SYSTEM

The CANSOLV® System scrubbing technology is the leading regenerable SO2 scrubbing process. It uses an aqueous amine solvent in a conventional amine treater process flowsheet configuration to achieve high-efficiency removal of SO2 from a ...

Jun. 7, 2005

By Shell Cansolv – Gas absorption solutions

EPA establishes new 1-hour standard for sulfur dioxide

On June 2, 2010, the U.S. EPA established a new 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). The new 1-hour standard was set at the level of 75 parts per billion (ppb) calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations. With the establishment of the new 1-hour SO2 standard, ...

Oct. 5, 2010

By Trinity Consultants

Preparation and characterization of sorbents prepared from ash (waste material) for sulfur dioxide (SO2) removal

Sorbents synthesized from various types of ash (coal fly ash, coal bottom ash, oil palm ash, and incinerator ash) for flue gas desulfurization were investigated. The sorbents were prepared by mixing the ashes with calcium oxide and calcium sulfate using the water hydration method. The effects of various sorbent preparation variables, such as the hydration period, the ratio of calcium oxide to ...

Mar. 1, 2005

By Springer

Industrial Sources Influence Air Concentrations of Hydrogen Sulfide and Sulfur Dioxide in Rural Areas of Western Canada

A survey of monthly average concentrations of sulfur dioxide (SO2) and hydrogen sulfide (H2S) at rural locations in western Canada (provinces of Alberta, British Columbia, and Saskatchewan) was conducted in 2001– 2002, as part of an epidemiological study of the effects of oil and gas industry emissions on the health of cattle. Repeated measurements were obtained at some months and locations. We ...

Oct. 1, 2007

By Air & Waste Management Association (A&WMA)

Two Detector Solution to Analyzing Sulfur

Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...

Nov. 23, 2016

By Restek Corporation

Treatment Options for Molten Sulfur Storage

Documento sin título ...

Apr. 1, 2005

By Merichem Company

Canarina DISPER software · air dispersion · SOx Sulfur oxides · algorithms 19

Gifford, F.A., Jr. 1976: Turbulent Diffusion - Typing Schemes: A Review. Nucl. Saf., 17, 68-86. Hicks, B.B., 1982: Critical assessment document on ...

Nov. 18, 2011

By Canarina Environmental Software

Phenol degradation on novel nickel-antimony doped tin dioxide electrode

Nickel and antimony doped tin dioxide is a novel anodic material for its good performance of electrochemical ozone generation and direct electro-catalytic oxidation. Electro-catalytic oxidation of phenol on this novel nickel-antimony doped tin dioxide electrode is presented here. The morphology and composition of the electrode are characterized. The effects of applied current densities on phenol ...

Nov. 13, 2010

By IWA Publishing

Phenol degradation on novel nickel-antimony doped tin dioxide electrode

Nickel and antimony doped tin dioxide is a novel anodic material for its good performance of electrochemical ozone generation and direct electro-catalytic oxidation. Electro-catalytic oxidation of phenol on this novel nickel-antimony doped tin dioxide electrode is presented here. The morphology and composition of the electrode are characterized. The effects of applied current densities on phenol ...

Oct. 1, 2010

By IWA Publishing

Evolution of marketable permits: the US experience with sulphur dioxide allowance trading

The Sulfur Dioxide Allowance Programme, created under Title IV of the Clean Air Act Amendments of 1990, is the first national market-based approach to environmental management employed in the United States and represents a radical departure from both the traditional regulatory approach to environmental policy and from previous emissions trading efforts. This paper reviews the goals of the SO2 ...

Sep. 15, 2009

By Inderscience Publishers

New Nitrogen Dioxide Ambient Air Quality Standard Could Pose Challenges

In the more than 200 air quality modeling analyses that ALL4 meteorologists have conducted, demonstrating compliance with the annual nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS) of 53 parts per billion (ppbv) has rarely been an issue. The relative ease for demonstrating compliance with the annual NO2 NAAQS is due to two (2) factors. First, the ...

Feb. 15, 2010

By All4 Inc.

New Report Shows Decline in Carbon Dioxide and Other Pollutants from U.S. Power Plants, but State and Power Company Emissions Vary Widely

Electric Power Industry is Transitioning to Lower-Carbon Sources and Positioned to Meet New EPA Carbon Standards A new report on U.S. power plant emissions from the country’s top 100 electric power producers shows a downward trend in ...

May 28, 2014

By Ceres

Continuous Monitoring of Odorous compounds in WWTP Sensory approach or Physico-chemical solution?

In WWTP site managers are familiar with odor & chemical profile as they are exclusively focused on sulfur compounds measurement. These molecules are used as process drift indicators and offer a good criteria of process performance. Hydrogen Sulfide (H2S), Methyl Mercaptan (MM), Ethyl Mercaptan (EM), dimethyl sulfur (DMS) or Di-Methyl-di sulfur (DMDS), sulfur dioxide (SO2) provide a better ...

Nov. 3, 2014

Electrochemical oxidation of sulfite ions in aqueous solutions

Gaseous pollutants that affect human health, destroy vegetation and damage materials and art treasures can be converted into harmless components by electrochemical reactions. Electrochemical gas purification methods can be applied basically in two steps. In the first step, gases to be removed are absorbed in an aqueous electrolyte. Then, in the second step, they can be converted into harmless ...

Sep. 7, 2004

By Inderscience Publishers

Pulp & Paper: Great Northern Uses Venturi Scrubbers Case Study

The Great Northern Paper Co.’s mill in Millinocket, Maine, produces about 500,000 tpy of paper for telephone directories, magazines, almanacs, business forms, catalogs, and school workbooks. Pulp is produced in the form of chips, using the sulfite chemical process. The chips are cooked in a magnesium bisulfite solution in batch digesters at specific temperatures and pressure. When the ...

Feb. 16, 2016

By CR Clean Air Group, LLC

Control of malodors using Ecosorb - A natural product

Abstract Ecosorb removes many malodors, including sulfur dioxide, hydrogen sulfide and ammonia, from the environment. It is made up of a combination of essential oils consisting of an equilibrium of neutral organic compounds and organic buffers. Its pH ranges from 4.0 to 6.8. Acidic malodors such as hydrogen sulfide and sulfur dioxide are removed by at least four mechanisms ...

Dec. 26, 2014

By OMI Industries (OMI)

Treament of Hydrogen Sulfide (H2s)

This gas is often found in groundwater that contains iron and manganese. It is easily identified by its "rotten egg" odor. In addition to causing serious taste and odor problems, sulfide also promotes the growth of sulfur bacteria. Hydrogen sulfide can cause corrosion problems with iron and concrete pipes and reservoirs. Sulfides are formed by the anaerobic reduction of sulfates and organic ...

Jul. 10, 2012

By Filtronics, Incorporated

Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...

Jun. 29, 2015

By IWA Publishing

Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...

Jun. 29, 2015

By IWA Publishing

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