Why Is Oxygen Added to Water During Wastewater Treatment

question 118

Multiple Choice

Why is oxygen added to water during wastewater treatment?

• A)To help separate solids from the water.
• B)To aid bacteria in digesting organic matter in the water.
• C)To help fish breathe it after it is released to natural waterways.
• D)Oxygen is never added to wastewater.

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Definitions:

Resale Value

The estimated market value of an asset if sold again in the future.

Office Furniture

Desks, chairs, tables, cabinets, and other furnishings used in an office setting to facilitate work and storage.

Double-Declining-Balance

An accelerated method of depreciation which doubles the normal depreciation rate, reducing the asset's book value more quickly.

Resale Value

The estimated market value of an asset at the future point in time when it is likely to be sold.