The Activated Sludge Method of Wastewater Treatment Uses

question 64

Multiple Choice

The activated sludge method of wastewater treatment uses

• A)a microbial biofilm for organic carbon reduction.
• B)an inoculum from the previous activated sludge treatment.
• C)chemolithotrophic bacteria for carbon reduction.
• D)special chemicals for the removal of organic pollutants.
• E)large screens to filter out particulate matter.

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Definitions:

Buyers

Individuals or entities that purchase goods or services for personal use, resale, or production.

Income Effect

The variation in the income of a person or an economy and its impact on the demand for products or services.

Legal Services

Professional services provided by qualified lawyers or legal practitioners, including advice, representation, or the preparation of legal documents.

Normal Good

A good for which demand increases as the income of consumers increases, and decreases as the income falls.