Selecting Particulate and Gaseous Pollution Control Device

Abstract

Industrialization tends to be accompanied by growing population and increasing awareness on environmental problems, making the use of pollution control equipment imperative. However, the air pollution is a complex phenomenon, as the pollutants distributed in the air are molecularly more random than in other media (soil and water). The control of air pollution, therefore, often becomes a more energy intensive process, leading to increased CO 2 emissions. Further, air pollution comprises particulate and gaseous pollutions requiring different control philosophies. When the control of both particulate and gaseous pollutants is required in a single step, the selection of equipment is further complicated. This article outlines how such complications could be avoided by developing an understanding on the criteria of selecting air pollution control devices. The advantages and disadvantages of all generic control devices are critically appraised for the better understanding by both the designers and users. Emission trading, bubble policy, and the recommendations of the World Bank Guidelines for controlling particulates, SO 2 , and NO X pollution are highlighted. The recent research on the development of air pollution control devices are appraised critically. Finally, the criteria on selecting equipment for controlling particulate-laden-gaseous pollution in a single step are critically elucidated with few case studies.

Air Pollution Control in Fuel Coke Manufacturing in India: Assessment of Current Practices and Policy with Recommendations for Improving Air Emission Management

“…In addition, wet scrubbing has the unique ability to reduce the heat load of the gaseous stream being emitted to the atmosphere through the stack. A very high efficiency of the removal of particulate‐laden gaseous emission in a wet system can be uniquely achieved (Bandyopadhyay, ). Emission standards need not be changed and are kept for both types of units as stipulated (MoEF, ).…”

Honeycomb wet scrubber for acidic gas control: modeling and long-term test results

“…These gases are also precursors for secondary inorganic components in PM 2.5 [7] which is considered as a major health-risk concern in many countries [8]. Wet scrubbers (WSs) are widely used to control the emission of acidic gases [9][10][11] due to their small footprint, simple structure, and low capital cost [12]. However, the measured removal efficiency (RE) of most traditional WSs cannot meet the required value of greater than 95% [1].…”

Honeycomb Wet Scrubber For Acidic Gas Control: Modeling And Long-term Test Results 

“…These gases are also precursors for secondary inorganic components in PM2.5 [7] which is considered as a major health-risk concern in many countries [8]. Wet scrubbers (WSs) are widely used to control the emission of the acidic gases [9][10][11] due to their small footprint, simple structure, and low capital cost [12]. However, the measured removal efficiency (RE) of most of the traditional WSs can't meet the required value of greater than 95% [1].…”