electrostatic precipitation Articles
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CFD modelling of electrohydrodynamic gas flow in an electrostatic precipitator
Modelling of the flow velocity fields for electrohydrodynamic flow in a wire-to-plate type electrostatic precipitator was achieved. From calculations for the flow employing different flow models, the Chen-Kim k − ε turbulent model appeared to be the most appropriate choice to obtain a quantitative image of the resulting mean flow field and downstream wake flow of the rear wire, although this was ...
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The design of electrostatic precipitators by use of physical models
This paper describes how physical models can be successfully employed in the design of Electrostatic Precipitators (ESP). The development of the computational power of personal computers has made possible the development of mathematical models of complex systems, like ESP, that can be used at relatively low cost. These mathematical models simulate the non linear coupling of the different physical ...
By IRS srl
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Suppression of particle deposition onto downstream wall in an AC Electrostatic Precipitator with neutralisation
Electrostatic Precipitators (ESPs) are used to decontaminate polluted environment around the tunnels. A conventional ESP has high collection efficiency but still has a problem in that its downstream walls are polluted due to particle deposition. The experiments carried out in this study have focused on how the particle deposition can be prevented by neutralising the gases. The collection ...
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Precipitator Solves Dryer Problem
Plum Creek Manufacturing, Columbia Falls, Montana, installed a PPC Industries electrostatic precipitator to solve a direct fired dryer dust plugging problem. The electrostatic precipitator was installed in a very congested area and the project had to be done so the dryer was off-line a minimal amount of time. Plum Creek personnel relocated existing equipment, poured concrete footings, ran all of ...
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Multi-pollutant control creates fuel options for whiskey distillery
The distillation of fine whiskey requires the application of appropriate amounts of heat in the form of steam. The generation of that steam can come from multiple sources of energy. The Wild Turkey Distillery located in Lawrenceburg, KY has utilized an EISENMANN Wet Electrostatic Precipitator Dual Field (WESP- 2F) to provide multi-pollutant air pollution control on the plants new biomass fired ...
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Electrostatic precipitator modelling: from University study to application
The need to understand variations in the performance of an electrostatic precipitator, in order to remain in compliance with the regulations whatever coal is burned, leads us to place at the disposal of the operator a user-friendly expert investigation tool based on a complete description of the phenomena involved during the dust collection. The code used, obtained from much work in ...
By IRS srl
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Possible reuse of Egyptian controlled cement dust
Possibilities for the reuse of controlled cement dust, collected from the hopper of the electrostatic precipitators installed on the different cement kilns of two of the three biggest companies for Portland cement production located to the south of Cairo, have been investigated. Twenty-one factors representing the physical properties and mineral and chemical composition of the cement dust were ...
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Novinda Product Shows Efficient Hg Capture in High SO3 Environment Case Study
In a recent field trial Novinda Corporation demonstrated efficient and effective mercury capture of mercury from the flue gas at a plant burning Eastern bituminous coal. The trial was conducted at Santee-Cooper’s Winyah station Unit 4 in South Carolina. The host unit is equipped with a selective catalytic reactor (SCR) followed by parallel electrostatic precipitators (ESP) and wet flue gas ...
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CCS vs. Electrostatic Precipitators for Abrasives, Ceramics, Non-Soluble PM2.5, Submicron Particulate
Manufacturing Processes. Applications where conventional equipment is very inefficient or very expensive to operate and maintain provides an opportunity for the Cloud Chamber Scrubber (CCS) to showcase its unique capabilities. Abrasives manufacturing is a typical example. CCS Cloud Chamber technology was chosen by Saint-Gobain Advanced Ceramics Corp. (formerly Carborundum Corp.) for the ...
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Innovative Dryer and Emission Control System at a Particleboard Installation
In 1989, Bohemia Corporation installed a new primary drying system and also air pollution control equipment at their particleboard plant in Eugene, Oregon. The drying system was composed of a Westec America triple-pass rotary drum dryer fired by a Coen sanderdust burner. The primary and secondary particulate collectors installed were also of a Westec America design. The tertiary air pollution ...
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Controlling acid gas mists
Gas cleaning New and strict pollution regulations in metallurgical plants worldwide are restricting particulate and acid gas emissions to extremely low levels. Because of that, sulphuric acid plants are being installed to remove and utilise S02 in gases resulting from the roasting of sulphide ores, smelting of ores, and burning or regeneration of spent acid or acid sludge from petroleum ...
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Thirty Years of Satisfactory Fluid Bed Sludge Incineration - The Northwest Bergen County Utilities Authority Experience
ABSTRACT Fluid bed incineration has been used as a sludge disposal method at the Northwest Bergen County Utilities Authority since 1969 when the first incineration unit was installed. In 2000, the third generation plant became operational. Over this period, environmental regulations have changed, as have the State mandated air pollution control devices. Since the State mandated a wet ...
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Efficient cyclone systems for fine particle collection in the pharmaceutical industry
The optimized design of gas cyclones is of particular relevance for the recovery of highly valuable products, such as in the production of active pharmaceutical ingredients (API) through drying systems such as Spray or Fluid Bed Drying (Shoyele et al., 2006). . Traditionally, these have been captured with reverse flow gas cyclones, but fine and low density particles remain difficult to capture ...
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Novinda AS-HgX Shows Superior Hg Capture in Dry-Scrubbing Environment Case Study
In numerous field trials over the past two years Novinda Corporation has demonstrated efficient and effective mercury capture from flue gas at dry-scrubbed plants burning PRB coal. These trials were conducted at plants equipped with both Spray Dryer Absorbers (SDAs) and Circulating Dry Scrubbers (CDSs). Some units had selective catalytic reactors for NOx control. Particulates were captured either ...
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How do oil mist collectors work? Comparing the different technologies, part II
In our previous article about oil mist collector technology, we discussed the pros and cons of centrifugal mist collectors and filter-based mist collectors. Today, we look at the other two most common methods of getting oil mist out of the air. Electrostatic Precipitator Mist Collectors An electrostatic precipitator uses high-voltage electricity to impart a positive charge onto the particles of ...
By ProVent, LLC
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AngloGold Ashanti chooses Beltran WESP - Case Study
AngloGold Ashanti Brasil Mineracao is a leading producer of gold in the world. AngloGold was working on production plans for the Cuiaba Gold Mining Expansion Project located at Nova Lima, Minas Gerasis. The plant's production capacity is projected to be equivalent to 400 metric tons of sulfuric acid per day. The Promon Company worked on the design, procurement, construction and assembly services ...
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Game theory approach for the design of an optimal air pollution control system for thermal power plants
A procedure, based on the concept of game theory, for the optimum design of an air pollution control system in thermal power plants is described. The problem is formulated as a four-criteria optimisation problem, with the cost of the electrostatic precipitator, the cost of the stack, the maximum ground-level concentration of particulate matter and the maximum ground-level concentration of sulfur ...
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Meeting the demands of Foreign Representative office for international air quality standards - Case Study
Problem: The client had been using stand-alone air purifiers of some of the best European grades but was incurring high recurring costs while the safety levels were not being achieved even in the moderate air pollution periods. Furthermore, they were worried about the secondary source of infection and gas off from the HEPA filters that were applied to their air purifiers. Solution: The ...
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Acoustic cleaning system for electrostatic precipitator of 600MW boiler
Summary: in this article, we give analysis to the design and model selection of acoustic cleaning system for the ESP (electrostatic precipitator) of 600MW boiler fire by lignite. We come up with the design & operation parameter for acoustic cleaning system. This article provides reference for successful application of sonic horn to remove soot deposit in ESP. 1. Case Description In this case, ...
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Wet electrostatic precipitators: A preferred technology for emission control
The basic science behind electrostatic precipitators is as familiar and as simple as static cling. But today, this elemental force has been harnessed to a technology that is helping to remove millions of tons of toxic chemicals from our atmosphere; saving billions of dollars annually in pollution-related physical damage; and averting costly impacts on health and mortality rates for millions of ...
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