1.Chemical coagulation conditions water for further treatment by removal of whic

Question

1.Chemical coagulation conditions water for further treatment by removal of which of the following?

A. Iron and manganese

B. Bacteria and organic pollutants

C. Tastes and odor

D. Turbidity and color

2.The water chemistry of the system controls the rate of adsorption and desorption of metals to and from sediment.

False

3.Solutions range from very acidic to very basic, and these categories are described through ___________________ , which is a measure of the hydrogen ion concentration

4.Even though nitrogen is an essential nutrient that contributes to the growth of algae and the eutrophication of lakes, the presence of it in drinking water has little effect on human health.

False

5.Common biostimulants in water include carbon, phosphorus, potassium, and sulfur, among other elements

True

false

6.The range of parameters for highly saline waters is 1,000 to 3,000 parts per million (ppm) of dissolved salts.

A. Iron and manganese

B. Bacteria and organic pollutants

C. Tastes and odor

D. Turbidity and color

2.The water chemistry of the system controls the rate of adsorption and desorption of metals to and from sediment.

True

False

3.Solutions range from very acidic to very basic, and these categories are described through ___________________ , which is a measure of the hydrogen ion concentration

4.Even though nitrogen is an essential nutrient that contributes to the growth of algae and the eutrophication of lakes, the presence of it in drinking water has little effect on human health.

True

False

5.Common biostimulants in water include carbon, phosphorus, potassium, and sulfur, among other elements

True

false

6.The range of parameters for highly saline waters is 1,000 to 3,000 parts per million (ppm) of dissolved salts.

True False

Explanation / Answer

Answer:

1) answer: D. Turbidity and color

Neutralised the negative charged sediments particle by invading coagulant positive charge. thus, it expedites the sedimentary process.Also, Lime can be used to coagulate iron and magnesium. answer A is also correct considering whole range.

2) answer: True

Adsorption and desorption have controlling factors of interacted fluid composition and active interaction.

3) answer: pH

we know, ph = - log [H+]

4) answer: False

Higher nitrogen levels may imply the possible presence of contaminants such as disease-causing organisms, pesticides, or other inorganic & organic compounds that could cause health problems.

5) answer: False

6) answer: False

Highly saline water - dissolve salt from 10,000 ppm to 35,000 ppm

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