Q. Waste water contains algae, fungi, bacteria and

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Q. Main sources of nitrogen compounds in waste water are proteins, amines, and

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Q. Secondary treatment is carried out for removal of

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Q. Rate of oxidation depends on amount of:

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Q. In secondary treatment, decomposition of organic matters is carried out by

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Q. 'volatile solids' represents the

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Q. Anaerobic decomposition is also known as

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Q. Some common type of compounds present in crude oil are:

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Q. 'turbidity' increases as long as sewage becomes

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Q. Floating materials in preliminary treatment includes:

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Q. Rise in temperature due to heat from power plant and industries is known as

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Q. What does help in reaeration from atmosphere?

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Q. What causes erosion of concrete degradation?

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Q. Which microorganism is responsible for cholera, typhoid, dysentery?

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Q. As temperature increases, water reduces amount of dissolved oxygen, resulting in increased

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Q. Preliminary treatment reduces solids, ranges from

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Q. Temperature, oxygen is more soluble in water:

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Q. In extreme cases of eutrophication, the water bodies no longer support

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Q. What are the most common metals found in industrial processing?

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Q. Pesticides are destroying the land

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