Stack Testing Articles | Environmental XPRT

The 10 Key Factors in Selecting a Stack Sampling Firm

Summary: This document is a summary of the key factors that you should take into consideration when hiring a stack testing firm.This has been prepared in conjunction with the ASTM criteria for standard practice of testing companies.The ASTM criteria has been supplemented, based on 125 years of direct testing experience, which is the combined years of experience of the individuals that contributed ...

Jan. 1, 2006

By Avogadro Environmental Corporation

Engineers Benefit from Geotube Stacking Technology & Analysis - Case Study

Stacking Geobag units makes projects previously thought impossible, possible. Since 1962, Geotube technology has protected countless shorelines and provided low cost, high volume dewatering solutions to companies all over the world. Starting off as a single layer unit designed for shoreline erosion protection, Geotube structures have been developed and improved for more than 40 ...

Jan. 1, 2010

By TenCate Geosynthetics Netherlands bv

How does climate stack up against other worst-case scenarios?

Climate isn’t the only catastrophe threatening the planet, but it may be the one most in need of attention and resources. The following is excerpted from Climate Shock (2015) by Gernot Wagner and Martin L. Weitzman. Published here with permission from Princeton ...

Apr. 1, 2015

By Ensia

Simulation of plume dispersion using different stack configurations and meteorological inputs

The application of CALMET/CALPUFF modelling system is well known, and several validation tests were performed until now; however, most of them were based on experiments with a large compilation of surface and aloft meteorological measurements, not always available. Also, the use of an operational large smokestack as tracer source is not so usual. In this work, CALPUFF model is applied to ...

Dec. 1, 2014

By Inderscience Publishers

White Paper: ANSI N13.1-2011 Stack Sampling Considerations

Background Nuclear facilities are required to follow industry standards for sampling stack effluents. Exposure of the general public to released radionuclides must be monitored as specified in US governmental regulations. The United States Environmental Protection Agency (USEPA) and the United States Nuclear Regulatory Commission (USNRC) have the authority over the monitoring of these ...

Sep. 20, 2014

By HI-Q Environmental Products Company

Ocean bacteria: performance on COD<sub>Cr</sub> and NH<sub arrange=

4⁺-N removal in landfill leachate treatment" title="Ocean bacteria: performance on COD_Cr and NH₄⁺-N removal in landfill leachate treatment"/>

Ocean bacteria: performance on COD_Cr and NH₄⁺-N removal in landfill leachate treatment

An experiment was carried out to investigate the performance of mixed ocean bacteria, isolated from the ocean sediment, on landfill leachate treatment. In this treatment, ocean bacteria were the only constituent added to remove organics and NH4+-N. Given their considerable influence on wastewater purification, factors such as inoculum, initial pH, ...

Mar. 27, 2015

By IWA Publishing

Grana-Localized Proteins, RIQ1 and RIQ2, Affect the Organization of Light-Harvesting Complex II and Grana Stacking in Arabidopsis

Abstract Grana are stacked thylakoid membrane structures in land plants that contain photosystem II (PSII) and light-harvesting complex II proteins (LHCIIs). We isolated two Arabidopsis mutants, reduced induction of non-photochemical quenching (riq1 and riq2), in which stacking of grana was enhanced. The curvature thylakoid 1a curt1a) mutant was previously shown to lack grana structure. ...

Sep. 6, 2016

By H Smith Plastics LTD

Determination of TOC in stack through the innovative FID analyser easy to carry - Case Study

PROBLEM: The industrial chimney's emissions of Volatile Organic Compounds (VOCs) are becoming issues of global importance and to have an accurate knowledge about how to test VOC turns into a strategic issue. VOC emissions are quantified and monitored according to standard EN 12619, using FID analyzer which uses hydrogen and other reference gases in ...

Jul. 8, 2014

By Pollution Analytical Equipment

How Does Your Organization Stack Up To The "Best Practices" In Refrigerant Regulations Compliance Management?

Our "Best Practices" checklist was created from working with organizations throughout the country to develop and implement EPA Refrigerant Regulations compliance programs. The checklist contains what the EPA considers "must do" ...

May 23, 2005

By IHS Markit

Emission Testing and Monitoring

Presented in Track B4: EMISSION TESTING & MONITORING at EUEC 2011, January 31 Phoenix, Arizona B4.1 | Update on PM2.5 and Condensable Particulate Matter Emissions Measurement Methods Larry Hottenstein | Partner, Environmental Resources Management Following the promulgation of the PM2.5 ...

May 9, 2011

By Energy, Utility & Environment Conference (EUEC)

Analyzing Stack Gas Semivolatiles, Using Supelpak-2 Adsorbents and Capillary GC (Modified Method 5, US EPA SW-846)

The demanding detection limits required for air sampling by Modified Method 5 (US EPA SW-846, Method 0010) necessitates extensive cleaning and meticulous handling of the adsorbent cartridge/trap during sampling and analysis. Supelpak-2 adsorbent is cleaned in accordance with and meets the purity criteria of EPA SW-846, Method 0010, for testing semivolatile emissions from incinerator stationary ...

Dec. 31, 1997

By MilliporeSigma

The StyroPress styrofoam densification test results - Case Study

Two months ago a StyroPress styrofoam densifier was installed at a furniture company in Arizona. This unit has been monitored closely and we are now able to provide you with some of the results. This StyroPress EPS briquette system has now been compacting and densifying styrofoam for a couple of months. Feel free to contact us for the user and contact information should you have any questions of ...

Dec. 29, 2013

By Recycling Equipment Inc. (REI)

Application of leaching tests on phosphogypsum by infiltration-percolation

The phosphoric acid production obtained by attacking phosphate rock by sulphuric acid cogenerates considerable quantities of phosphogypsum. The world cogeneration is estimated about 100–280 Mt per year. In another context of sustainable development, the phosphate chemical industry develops different ways of phosphogypsum valorization, which makes its storage stack in a suitable way for its ...

Jun. 21, 2017

By IWA Publishing

Coming In Out of the Cold: Hybrids Put to the Test

Untitled Document Point Roberts, WA, Delta B.C.- May 25, 2004 With gas prices reaching an all time high and not much promise of an end in sight, hybrid technology is falling under the lens of some careful ...

Jan. 1, 2004

By Investorideas.com

Testing the Performance of a DeNOx System Using a Portable Emissions Analyzer - Case study

Using Portable Emissions Analyzers to Measure the Performance of a NOxReduction System in a Power Plant Boiler The majority of power plants utilize NOx reduction systems (eg. Ammonia Injection, SCR, etc.) in their power boilers to ensure that the NOx emissions levels comply with current regulations. The frequent evaluation of the ...

Mar. 1, 2018

By E Instruments International, LLC

Mobile Stationary Source Emissions Testing, Coming to a Facility Near You?

Last week, Antea Group had the unique opportunity to perform a RATA (relative accuracy test audit) of the emissions from a thermal oxidizer at an ethanol production facility located in Minnesota using a state-of-the-art mobile testing laboratory. During this RATA audit, actual stack emissions levels (including NOx, SOx, CO2, CO, O2, flow rate, temperature, velocity and pressure) from the ...

Dec. 9, 2015

By Antea Group - USA

Case study - ABUTEC 20 and ABUTEC 100

Economical flaring solutions for low flow applications. The completely enclosed combustion allows for stack performance testing that isn’t available with traditional utility ...

Jul. 11, 2013

Estimation of water quality by UV/Vis spectrometry in the framework of treated wastewater reuse

The aim of this study is to investigate the potential of ultraviolet/visible (UV/Vis) spectrometry as a complementary method for routine monitoring of reclaimed water production. Robustness of the models and compliance of their sensitivity with current quality limits are investigated. The following indicators are studied: total suspended solids (TSS), turbidity, chemical oxygen demand (COD) ...

Apr. 22, 2017

By IWA Publishing

Effect of solution matrix and pH in Z-nZVI-catalyzed percarbonate system on the generation of reactive oxygen species and degradation of 1,1,1-trichloroethane

This study primarily focuses on evaluating the effects of solution matrix and pH for the generation of reactive oxygen species (ROSs) in a Z-nZVI-catalyzed sodium percarbonate (SPC) system to degrade 1,1,1-trichloroethane (1,1,1-TCA) in the absence and presence of a reducing agent (RA), i.e. hydroxylamine. Degradation of 1,1,1-TCA was 49.5% and 95% in the absence and presence of RA. Probe ...

Apr. 10, 2017

By IWA Publishing

Enhanced degradation of trichloroethene by sodium percarbonate activated with Fe(II) in the presence of citric acid

Trichloroethene (TCE) degradation by Fe(II)-activated sodium percarbonate (SPC) in the presence of citric acid (CA) in aqueous solution was investigated. The results indicated that the presence of CA enhanced TCE degradation significantly by promoting HO• generation. The presence of Cl−, HCO3− and the initial solution pH appeared to be not ...

Oct. 1, 2016

By IWA Publishing

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