_____________ plants discharge substantial quantities of SO2 into the atmosphere as a pollutant?
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Answer: B. Sulphuric acid
Explanation
Sulphuric acid manufacturing involves roasting sulfur ores and oxidizing sulfur dioxide gases. Industrial emission controls must capture residual sulfur dioxide before venting process gases. Consequently, sulphuric acid production plants are major sources of sulfur dioxide air pollution. Sulfur dioxide is a pungent, toxic gas produced during fossil fuel and ore processing. The contact process is the primary industrial method used to produce sulphuric acid. Uncontrolled sulfur dioxide emissions react with atmospheric moisture to form acid rain.
Environmental regulations mandate strict scrubbing systems in sulphuric acid production facilities. Industrial air quality monitoring tracks regional sulfur dioxide levels near chemical plants. Plant operators use catalytic converters to reduce sulfur emissions before atmospheric release. Nitric acid plants discharge nitrogen oxides rather than large quantities of sulfur dioxide. Chlor alkali facilities emit chlorine and hydrogen gases during brine electrolysis processes. Iron and steel plants emit carbon monoxide and particulates alongside lesser sulfur gases.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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