Wastewater effluents originating from coal mining, electroplating, and blast furnace operations predominantly contain _____________ pollutants?
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Answer: C. Inorganic
Explanation
Wastewaters originating from industrial operations like coal mining, electroplating, and blast furnaces contain heavy metal ions. These industrial effluents are heavily laden with dissolved inorganic chemical compounds rather than living matter. Inorganic pollutants such as heavy metals and mineral acids characterize the toxic discharge from these facilities. Electroplating processes utilize baths of metallic salts that generate significant inorganic liquid waste streams. Coal mining activities produce acid mine drainage containing dissolved iron, sulfate, and other heavy minerals. Blast furnace operations discharge scrubber waters rich in suspended and dissolved inorganic compounds.
Proper treatment of inorganic industrial wastewater is crucial to prevent severe environmental contamination of natural water bodies. Heavy metals can accumulate in aquatic food chains and pose serious long-term health risks to humans. Environmental regulations strictly limit the discharge concentrations of inorganic pollutants from metallurgical and mining plants. Organic pollutants typically originate from municipal sewage, food processing plants, and petrochemical manufacturing industries. Radioactive pollutants stem from nuclear power generation, uranium mining, and specialized medical isotope applications. Categorizing these industrial effluents as inorganic highlights their mineral and metallic chemical composition.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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