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

3 Answers

313 views
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

4 Answers

289 views
500 pounds

math constant: 1mg/l=1ppm, (1 milligram per liter = 1 part per million)

math constant: water weighs 8.34 pounds per gallon

math constant: 1 pound is 1ppm of 1 million...Read More

math constant: 1mg/l=1ppm, (1 milligram per liter = 1 part per million)

math constant: water weighs 8.34 pounds per gallon

math constant: 1 pound is 1ppm of 1 million...Read More

2 Answers

284 views
Well water is filtered from harmful bacteria and organisms naturally. Because the rainwater or snow soak down into the ground, it is naturally filtered; however, water that is gathered from lakes...Read More

2 Answers

269 views
15,708 cu ft

math constant: area of a circle formula, diameter squared x 0.7854 (0.7854 is 1/4th of pi, 3.1416 / 4=0.7854)

step 1: 50x50x0.7854=1,963.5 square feet at base of clarifierRead More

math constant: area of a circle formula, diameter squared x 0.7854 (0.7854 is 1/4th of pi, 3.1416 / 4=0.7854)

step 1: 50x50x0.7854=1,963.5 square feet at base of clarifier

2 Answers

262 views2 Answers

261 views

Love to do some charity work. Have a passion for writing and do it in my spare time

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

3 Answers

250 views
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

2 Answers

246 views
67.554lbs per day

math constant: 1 mg/L= 1 ppm (part per million) 1 gram is 1000th of a liter, 1 milligram is 1000th of a gram 1000x1000 = 1,000,000, so 1mg/L is one millionth of a literRead More

math constant: 1 mg/L= 1 ppm (part per million) 1 gram is 1000th of a liter, 1 milligram is 1000th of a gram 1000x1000 = 1,000,000, so 1mg/L is one millionth of a liter

2 Answers

239 views
Discard scratched or etched sample tubes

Fill the tubes with samples and standards that have been agitated thoroughly, and allow sufficient time for bubbles to escape.

Sample tubes must be...Read More

Fill the tubes with samples and standards that have been agitated thoroughly, and allow sufficient time for bubbles to escape.

Sample tubes must be...Read More

1 Answer

239 views
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

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

4 Answers

238 views
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

3 Answers

236 views
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

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

2 Answers

233 views
To gather together fine, light particles to form larger particles (floc) to aid the sedimentation and filtration processes

1 Answer

232 views
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

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%=0.08

3 Answers

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