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Water Treatment Questions and Answers (Q&A)

Repa
Answered: Nov 17, 2017

The pH scale runs from 0 to 14 according to the book page 570 (Chapter 11 Section 7.A)

3 Answers

H. Martin, Content Writer
Answered: Oct 09, 2018
The answer to this is B. In order to solve this, you need to divide the gallons with the square feet which means that 2,800,000 that you will divide with 500. The answer that you will get is 5600...Read More

3 Answers

John Adney, Content Writer
Answered: Jun 05, 2017
True. Many countries still have source of suitable drinking water without treatment.

2 Answers

E. Austin, Content Writer
Answered: Jun 20, 2019
The correct answer to this question is E, 1.56%. To get this answer, we can divide the given values in the word problem. We will divide the 28 thousand gallons of filter water by the 1.8 million...Read More

2 Answers

C. Wasek, Philanthropist
Answered: Feb 28, 2019
The question does not suggest that the shape is irregular and so to calculate the answer in cubic feet, you merely have to multiply the length by the width by the height of the basin. It is...Read More

2 Answers

R. Glover, Editor
Answered: Feb 21, 2019
The correct answer to this item is letter D. To get the surface area of a circle, one must use the formula r squared multiply by pi. Since the radius is not given, divide the diameter by 2. So,...Read More

2 Answers

John Adney, Editor
Answered: May 25, 2017
I agree that proof of professional competence is essential ('C')l, but I think that 'D' should be added as well since there is no better way to demonstrate knowledge of essential rules and...Read More

2 Answers

RagweedFarmer, Editor
Answered: Feb 25, 2017
92mL/min, 92.0297
There are two difficult aspects to this problem, specific gravity, and the percentage of alum in the solution.
Math Constant: Specific gravity of water = 1
Math...Read More

1 Answer

RagweedFarmer, Editor
Answered: Feb 25, 2017
2.1
mg/l and ppm are the same
1.6 million gallons x 8.34lbs per gallon = 13.344 million pounds, so 13.344 is 1ppm of 1.6 million gallons
28lbs / 13.344 =2.0983213 rounded to...Read More

1 Answer

John Adney, Editor
Answered: May 16, 2017
A. The curve of the surface of a liquid
C. The proper line of vision to read a liquid in a buret

1 Answer

RagweedFarmer, Editor
Answered: Mar 01, 2017
1.9444444 gallons per minute per foot
math constant: 1440 minutes in one day
step 1: 1,400,000 gallons divided by 1440=972.22222 gallons per minute
step 2: 972.22222 gallons per...Read More

1 Answer

RagweedFarmer, Editor
Answered: Feb 26, 2017
5616 pounds
math constant: 1 cubic foot of water = 62.4lbs, in case you forget the weight of one cubic foot you can multiply the weight of a gallon of water 8.34lbs times the volume in one...Read More

1 Answer

RagweedFarmer, Editor
Answered: Feb 26, 2017
149,600 gallons
math constant: 1 cubic foot holds 7.48 gallons
20,000 x 7.48 = 149,600...Read More

1 Answer

RagweedFarmer, Editor
Answered: Feb 25, 2017
11.25 gallons of 8% polymer
this problem could be a bit confusing because the 150 gallons has less than 1% polymer
Step 1: convert percentages to usable numbers 0.6%=0.006 and 8%=0.08Read More

1 Answer

H. callum, Content Writer
Answered: May 10, 2019
The flocculation refers to the chemical term about precipitation in a cloud or chemical situation. A basin is similar to the shape of a bowl. If there is a rectangular flocculation basin, then it...Read More

1 Answer

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