The Level of Wastewater Treatment That Involves Filtration Through Sand

question 6

Multiple Choice

The level of wastewater treatment that involves filtration through sand and carbon filters is

• A)primary wastewater treatment
• B)secondary wastewater treatment
• C)tertiary wastewater treatment
• D)quaternary wastewater treatment

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Definitions:

Gram-positive

Referring to bacteria that retain the crystal violet dye in the Gram stain test, indicating a thick outer cell wall.

Gram-variable

Pertaining to bacteria that do not consistently stain either positive or negative in the Gram stain test, showing variability in cell wall structure.

Lab Reports

Documents containing the results, methodology, and conclusions of laboratory tests, experiments, or analyses.

Protocols

Established sets of rules or procedures to be followed in specific situations, often within scientific research, healthcare, or information technology fields.