Off-Gas Treatment Articles on Environmental XPRT

Air Emissions/Off-Gas Treatment

A number of technologies have been widely applied for removal of VOCs from off-gas streams. However, the application of these technologies to off-gases from site remediation may be quite limited. Biofiltration has been widely applied for VOC destruction in Europe and Japan, but it has only recently been used in the United States. Catalytic and thermal oxidation are widely used for the destruction ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

Landfill Off-Gas Collection and Treatment Systems

Purpose This engineering technical letter (ETL) was written to provide guidance for designers to determine appropriate application of Landfill Off-Gas Collection and Treatment Systems, and to properly design and specify these systems. Applicability This ETL applies to all HQUSACE elements, major subordinate commands (MSC) , districts, laboratories, and field ...

Apr. 1, 1995

Liquid waste off-gas treatment - Case Study

Application Biffa Waste Services operate a major waste disposal site at Kilsyth in Scotland where they handle many types of industrial liquid effluent. This can give rise to a range of emissions from both the tank farm and the road tanker deliveries. In addition, significant NO2 and nitric acid fume releases can arise from process upset conditions. ERG provided an emergency NO2 ...

Sep. 21, 2010

By ERG (Air Pollution Control) Ltd

Enhanced Bio-Stimulation through Horizontal Wells

Biosparging technology can be further enhanced when applied through Horizontal Remediation Wells. Since horizontal well systems typically have 4 to 10 times more screen footage in contact with the contaminated media than vertical systems, Horizontal Biosparge Wells can inject much greater volumes while maintaining the same low flow rates. This, in turn, leads to more rapid increases in dissolved ...

Jun. 2, 2017

By Directional Technologies, Inc.

Shredding Puzzle in the Process of Waste Material Recycling

There are two main types of waste fabric waste: (1) the factory in the leather fabric processing and production of leather fabric can not be 100% of the use, so in the production of some by-products or waste, such as tailoring and sewing clothes when the extra cloth, cloth and other waste , As well as in the synthesis of chemical fiber in the process of excess waste and so ...

May 27, 2017

By Harden Industries Ltd.

What is a Rotary Tube Furnace?

By definition, a rotary tube furnace is a heat-treating circular furnace, which rotates during heat-treatment. Samples are transported through the furnace in a circular path as they are heated. Rotary tube furnaces generally burn pulverized, solid, gaseous or liquid fuel into its working section, and then the heating gases created flow towards the sample. These furnaces feature a metal drum lined ...

Jun. 14, 2017

By Thermcraft Inc

Optimising existing equipment with Bioconservación products

As part of its technical support service offered to clients on an ongoing basis, Bioconservacion conducted an efficiency study at the express request of one of its customers. The study explored solutions to improve efficiency in eliminating odours origintating from biological reactors through the use of horizontal deodorisation systems. The objective was to guarantee the ...

Jun. 7, 2017

By Bioconservacion SA

Using Air Strippers for Off-gas Treatment - Case Study

Two pharmaceutical plants in Puerto Rico used large sequencing batch reactor (SBR) systems to treat their wastewater. The primary treatment was an aerobic bio breakdown of the waste. The were forced to change their treament process because of change in treatment regulations. The new regulations required them to treat off-gas that was coming from the SBRs. They were faced with installing a very ...

Jan. 16, 2017

By QED Environmental Systems

Off-Gas Treatment Technologies for Soil Vapor Extraction Systems: State of the Practice

Untitled Document EXECUTIVE SUMMARY This document provides state-of-the-practice information on off-gas treatment technologies for soil vapor extraction ...

Jun. 1, 2006

By US EPA - Environmental Protection Agency

Oxygen-induced dynamics of nitrous oxide in water and off-gas during the treatment of digester supernatant

Nitrous oxide (N2O) is a potent greenhouse gas and of special concern in wastewater treatment. It is formed in biological wastewater treatment under both aerobic and anaerobic conditions. A major reason for high N2O emissions is low oxygen concentration during nitrification. In this full-scale study of N2O emissions from a sequencing batch reactor for treating digester ...

Jan. 16, 2014

By IWA Publishing

Detailed off-gas measurements for improved modelling of the aeration performance at the WWTP of Eindhoven

At wastewater treatment plants (WWTPs), the aerobic conversion processes in the bioreactor are driven by the presence of dissolved oxygen (DO). Within these conversion processes, the oxygen transfer is a rate limiting step as well as being the largest energy consumer. Despite this high importance, WWTP models often lack detail on the aeration part. An extensive measurement campaign with ...

Apr. 27, 2016

By IWA Publishing

Off-shore platform uses fast-cycle psa to recover stranded gas case study

Venoco Inc. Situation: Restricted space and limited on-board gas processing solutions forced oil producer on off-shore platform to re-inject high-carbon dioxide laden associated gas Solution: Installation of a Xebec PSA to dehydrate and separate C02 & heavy light hydrocarbons in the associated gas to meet California regulatory sales gas ...

Oct. 30, 2014

By Xebec Adsorption Inc.

Maxsys Fuel System helps Scott Bader let off steam with 5.7% Gas Savings

Resin and polymer manufacturer Scott Bader says it has been a socially responsible corporation long before the term was popularised. To this end the company has ambitious energy consumption reduction targets. Helping them to meet this, is the fuel pre-treatment system from Maxsys, which is delivering impressive gas savings in excess of 5.7% on Scott Bader’s steam raising boiler plant ...

Mar. 1, 2007

By Maxsys Fuel Systems Ltd

Gas Station Site Dewatering Treatment

Gas Station Site Dewatering Treatment Florida Carbonair provided a turn-key temporary water treatment system for this project. A Carbonair field crew mobilized, set up, and trained the clients operators of the system to operate the system. At the conclusion of the project Carbonair provided demobilization services including the extraction and disposal of ...

Mar. 8, 2012

By Carbonair Environmental Systems, Inc.

Land Treatment

Introduction Land Treatment is a full-scale bioremediation technology in which contaminated soils, sediments, or sludges are turned over (i.e., tilled) and allowed to interact with the soil and climate at the site. The waste, soil, climate, and biological activity interact dynamically as a system to degrade, transform, and immobilize waste constitutes. Wastes are periodically tilled to aerate the ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

Common Treatment Technologies for Halogenated VOCs in Air Emissions/ Off-Gases

Three technologies that are most commonly used to treat halogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with a ...

Oct. 1, 1997

By Federal Remediation Technologies Roundtable

Common Treatment Technologies for Nonhalogenated VOCs in Air Emissions/Off-Gases

Three technologies that are most commonly used to treat nonhalogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

A Four Channel Gas Detector for Wastewater Treatment Plants

Common hazardous gases found in wastewater treatment plant facilities are hydrogen sulphide, methane, ammonia, carbon monoxide, chlorine and oxygen deficiency. Some facilities may also use ozone, chlorine dioxide or sodium hypochlorite with the chlorine during the sanitization treatment process. Furthermore, sulphur dioxide is often used to de-chlorinate the water once the treatment process is ...

Aug. 13, 2015

By Critical Environment Technologies Canada Inc. (CETCI)

Wastewater treatment for mining camps/oil and gas camps

Mining and oil and gas camps operating in remote and environmentally sensitive areas become home to large work forces for extended periods of time. Supplying water for domestic use and treating large volumes of sewage and greywater can be a complex and expensive challenge. Improper wastewater treatment can lead to pollution of the surrounding ecosystems. Many jurisdictions have tightened ...

Aug. 8, 2011

By Newterra

Allweiler pumps in exhaust gas treatment systems in ships

As environmental regulations become more stringent, waste gas treatment systems are growing in importance. H+H Umwelt- und Industrietechnik GmbH of central Germany has been using Allweiler progressing cavity pumps as a core component of these systems since 2003. The company has been manufacturing catalytic waste gas treatment systems since 1998. Originally they focused on applications in block ...

Sep. 9, 2013

By ALLWEILER GmbH

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