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Environmental Management — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceEnvironmental Management3 Marks
Question
Write short note : Industrial waste
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Answer

  • Industrial waste is the waste produced by industrial processes or activities.
  • There is a huge variety of industries producing different types of materials and articles. All of these use raw materials and give out a lot of waste.
  • There are hundreds of mines which extract copper, silver, gold, iron, coal etc. Huge quantities of waste are produced while processing them.
  • Cement industries give out solid, liquid and gaseous wastes.
  • While refining crude oil, a lot of poisonous gaseous and liquid wastes are produced.
  • Construction units produce huge quantities of waste stones, pebbles, broken bricks, wood waste etc. Mostly they are dumped in landfills.
  • It also includes chemicals, pigments, sludge, ash, metal, etc. given out from mining, textile, construction, chemical industries.

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