Water Quality Analysis Lecture 5 Quiz

Water Quality Parameters

• Turbidity is the characteristic of water related to the presence of finely suspended particles and is measured in mg/l or parts per million (ppm).

Color of Water

• The color of water is due to the presence of natural organic matter.

Taste and Odor

• The extent of taste or odor in a sample of water is measured through threshold odor number.
• The recommended maximum threshold odor number for public water supplies is 3.

Solids in Water

• Solids occur in water as total dissolved solids (TDS) and suspended solids.
• After evaporating the filtered portion of a water sample, the material left behind is called residue.

Effects of Temperature

• Temperature affects the water quality parameter of solubility.

Acidity and Alkalinity

• pH is the parameter used to measure the strength of an acidic or basic solution.
• Acidity in water usually results from the presence of carbon dioxide, sulfuric acid, and nitric acid.

Mineralized Waters

• The term "hardness" is used to express the properties of highly mineralized waters.

Total Dissolved Solids (TDS)

• The desirable-tolerable range for total dissolved solids in water is 500-1000 mg/l.

Bacterial Examination

• Bacterial examination of water is important for detecting the presence of pathogens.
• E.Coli is a type of bacteria that can indicate fecal contamination.

Effects of Dissolved Minerals

• The harmful effect of dissolved minerals in water is scaling and corrosion.

Influential Element

• pH is the element that can influence many processes, such as corrosion, chemical reactions, and biological activities.