Chapter 6 - Total Suspended Solids Flashcards

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1
Q

Suspended Solids

A

Particles held in temporary or permanent suspension against the force of gravity. Originate from erosion, vegetative debris, and microorganisms. Vary from colloids to gravel and silt.

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2
Q

Total suspended solids analysis

A

Like TDS analysis, but TSS collects particles contained on the filter

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3
Q

Suspended solids settling forces

A

Buoyant force, drag force, and gravitational force

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4
Q

Net gravitational force =

A

gravitational force - buoyant force

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5
Q

Soil classification tool

A

U.S. Standard Sieve

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6
Q

Stokes Law variables

A

Vs = terminal settling velocity
g = gravitational acceleration (9.81)
pp = particle density
pw = water density
D = particle diameter
u = viscosity

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7
Q

Colloids

A

Suspended particles with sizes 1nm - 1um. Are small and have a large surface area and reactivity

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8
Q

Tyndall effect

A

colloids are large enough to scatter light, so the light path in a colloidal suspension is visible

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9
Q

Brownian movement

A

The random movement of colloidal particles

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10
Q

What can be absorbed into a colloid?

A

Contaminants

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11
Q

What is a risk due to colloid-facilitated transport?

A

Groundwater contamination

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12
Q

Water absorbs light more strongly at what part of the visible spectrum?

A

Red

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13
Q

What color light is scattered back and visible?

A

Blue-green

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14
Q

Can remove suspended solids with what instrument?

A

Settling basin

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15
Q

Suspended particles do what to natural waters?

A

Increase turbidity, impact apparent color, and interfere with light penetration

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16
Q
A