plant emissions Articles
-
An application of a puff dispersion model on power plant emissions in Yatagan region, Turkey
The present paper describes the application of the CALMET meteorological model and CALPUFF plume dispersion model to the Yatagan district to study the impact of Yatagan Power Plant emissions on the SO2 levels on December 2000 in the region. Results indicate that SO2 concentrations over the city depend strongly on advected emissions from the power plant and on the local variation of the wind field ...
-
A Lagrangian particle model with chemical reactions: application in real atmosphere
In this work, a Lagrangian particle model able to account for simple chemical reactions between NO and O3 has been improved to consider the photolysis of NO2. A system of chemical equations is numerically solved on a Eulerian grid, while the particle trajectories are moved in a Lagrangian frame. The NOx emissions of a power plant in real atmosphere, situated in a complex topography environment, ...
-
Inter-comparison of the AUSTAL2000 and CALPUFF dispersion models against the Kincaid data set
Regulatory air dispersion models AUSTAL2000 and CALPUFF are validated by comparing the predicted Ground Level Concentrations (GLC) with the measured dataset resulting from the dispersion of an elevated, buoyant plume release in the Kincaid power plant experiment. Standard statistical measures of the model results are inter-compared. Their performance is scrutinised using scattered, ...
-
Modelling wet and dry depositions of PCDD/F releases from industrial plants in Apulia, Southern Italy
The modelling system RAMS/CALMET/CALPUFF was used to simulate the atmospheric dispersion and deposition of dioxins emitted from industrial sources over the Province of Lecce (Italy). Comparison between data and predictions shows that the model reasonably simulates the deposition patterns. Dry deposition of PCDD/F extends mainly downwind of the sources following the prevailing wind direction. Wet ...
-
White Paper: Managing Odour Complaints Best Practices
There are many ways to deal with Odour complaints, either proactively or reactively. Odours are not predictable, but you can manage them, if you receive a complaint. Here are some suggestions: Encourage odour complainants to notify the plant as soon as possible after an odour episode and fill out a standard questionnaire with details about the odour episode such as date, time, ...
By ORTECH
-
Computer simulated versus observed NO2 and SO2 emitted from elevated point source complex
ISC-AERMOD dispersion model was used to predict air dispersion plumes from an diesel power plant complex. Emissions of NO2 and SO2 from stacks (5 numbers) and a waste oil incinerator were studied to evaluate the pollutant dispersion patterns and the risk of nearby population. Emission source strengths from the individual point sources were also evaluated to determine the sources of significant ...
-
`A Case Study in Implementation of the NESHAPs for the Portland Cement Industry at a Major Source,` appeared in Cement Americas magazine, July/August 2003
Introduction Located at 40 CFR 63, Subpart LLL, the Portland Cement (PC) MACT standard poses a significant regulatory hurdle to the cement industry-Facilities subject to its requirements had to complete initial performance testing and develop their first substantial semi-annual monitoring report by January 31, 2003. The final Portland Cement MACT rule was promulgated on June 14, 1999, and ...
-
Air contaminants modelling by use of several receptor-oriented models
Two data sets were apportioned by the use of several models (chemical mass balance (CMB), principal components analysis-absolute principal components scores (PCA-APCS), positive matrix factorisation (PMF) and UNMIX). Source apportionment were results derived from the CMB modelling applied to the data from Vienna point traffic source, paved road and crustal dust as the dominant contributors to the ...
-
Receptor modelling of air quality data using neural networks
Introduction According to Hopke (1991) the management of ambient air quality is a difficult but important problem. In general, it involves the identification of the sources of materials emitted into the air, the estimation of the emission rates of the pollutants, the understanding of the transport-diffusion processes involved and the physical and chemical changes that can take place during the ...
-
Puzzle remains over source of Amazonian methane
Remote sensing observations have shown high methane concentrations in the troposphere above tropical forests in Venezuela and Brazil and scientists claim to have measured significant amounts of methane being emitted aerobically from the leaves of plants during photosynthesis. Recent experiments have been unable to reproduce these controversial results. Detailed knowledge of the global ...
-
Dispersion modelling of toxic air pollutants from fossil fuel combustion facilities
The emissions of toxic air pollutants from three power plants and one oil refinery were measured for a period of six months and dispersion of pollutants were calculated by using Air Dispersion Modelling Software (ADMS–4). The plume concentration of carbon monoxide, oxides of nitrogen, sulphur dioxide and particulate matter were calculated over long distances to estimate the incremental ...
-
Case study - Paint booth over spray
OVERVIEW A major automotive component supplier needed to control the emissions from its paint spray process. The plant emissions had characteristics common to many paint spray plants: high air flow, low volatile organic compound (VOC) concentration and particulate. The company needed an emission control solution that had low operating costs and that could also fit in their limited space. System ...
-
Case study - Paint spray
Problem A major automotive component supplier needed to control the emissions from its paint spray process. The plant emissions had characteristics common to many paint spray plants: high air flow, low volatile organic compound (VOC) concentration and particulate. The company needed an emission control solution that had low operating costs and that could also fit in their limited space. System ...
-
Integrated gasification combined cycle (IGCC) air permitting: overcoming obstacles, maximizing flexibility, presented at EUEC 2010
Agenda 1.IGCC Process Overview Gasification system options and process flow diagram Process area and plant-wide air emissions summary 2.Gasification Block Sources Emission points and operating scenarios (OS) Short-term and annual emissions summary 3.Permitting and Compliance Strategies Permitting considerations for startup, shutdown, gasifier rotations, and malfunctions (SSM) ...
-
Compliant emissions monitoring for a foundry plant in Brazil - Case Study
Context The customer is a global company specialized in developing and manufacturing highly engineered structural cast iron components applied to complex metallurgical and geometrical components extensively used in capital goods. It develops solutions present in the diversified segments, such as freight transport (all modals), infrastructure, agriculture, power generation and many other ...
By ENVEA
-
New Source Permitting and Visibility: Strategies for Developers of New Emissions Sources
Several recent developments have occurred which affect thousands of new or proposed emission sources in virtually every region of the country. These developments include the availability of new, more accurate techniques for assessing air quality impacts, and the increasing influence of Federal Land Managers (FLMs). Proposed facilities that are major emissions sources subject to Prevention of ...
By AECOM
-
Nuclear tools for characterising radiological dispersion in complex terrain: evaluation of regulatory and emergency response models
Routine operations of a nuclear research reactor and its facilities offer opportunities for collection of rare environmental tracer datasets which can be used for atmospheric dispersion model evaluation studies. The HIFAR reactor near Sydney, Australia, routinely emits the radioactive noble gas 41Ar, and other radionuclides such as 133Xe and 135Xe are also emitted from nearby radiopharmaceutical ...
-
EVALUATION OF STRATEGIES FOR MERCURY MACT COMPLIANCE
On December 15, 2003, the United States Environmental Protection Agency (U.S. EPA) proposed a rule with two alternatives to permanently reduce mercury (Hg) emissions from power plants. Under one alternative, which is the focus of this paper, the utilities would install controls known as Maximum Achievable Control Technologies (MACT) under section 112 of the Clean Air Act (CAA). The proposed rule ...
-
Wastewater Treatment Plant Monitors Greenhouse Gas Emissions - Case Study
Globally, little attention is paid to gaseous emissions from wastewater treatment processes. This contrasts greatly with the regulatory monitoring that is applied to the quality of water emissions from such facilities. However, in Helsinki, Finland, a large municipal wastewater treatment facility continuously monitors its emissions of greenhouse gases (GHGs) to help in the city’s efforts to ...
-
Estimating odour impact range of a selected wastewater treatment plant for winter and summer seasons in Polish conditions using CALPUFF model
Odour emission from wastewater treatment plants (WWTP) is a common cause of odour nuisance to neighbouring areas. The analysed object was mechanical biological WWTP designed for 1,200,000 population equivalent. Collection of the samples was carried out in accordance with the methodology described in VDI 3880 and PN-EN 13725 during the rainless weather. Odour concentration measurement was made ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you