Problem Solved: Chemical Pounds Per Day Formula

Problem Solved: Chemical Pounds Per Day Formula - Distribution System Math

Рет қаралды 72,448

American Water College

Күн бұрын

Пікірлер: 33

@victors.9993 3 жыл бұрын

225 gpm × 1440 min/day =324,000 ÷ 1,000,000= 0.324 MGD

@kroisen 9 жыл бұрын

I think this video would be much improved if you took the time to explain where the formula comes from. Gallons per minute can be converted to gallon per day by multiply by the number of minutes in a day, 1440. If a student understands that, this becomes much clearer. Otherwise it's just "memorize a formula" and a bunch of random seemingly disconnected numbers.

@CLP2102 6 жыл бұрын

thank you

@abigailaldea7956 4 жыл бұрын

You are so right. Other students are confuse when their instructors rants without explaining sources of their formula, conversions. Ultimately those students loses interest in the subject matter.

@saraism4557 Жыл бұрын

It's all about unit conversion. 225* 1440= 324000 gpd 2mg/L = (2÷1000)g/L = (2÷1000)/(1000) g/g. Since 1 liter= 1000 grams. Then From a gallon of water to pounds of water, multiply by 8,34. Now 324000 *( 2 ÷1000000)* 8,34= 5,4 lb/d

@jrenfro66 Жыл бұрын

Love the videos ....Question,why not use the Davidson pie chart for this problem ?

@carlrushing7093 5 жыл бұрын

This problem is for a well. Wells usually do not run for 24 hours every day, which this problem implies (that is where the 694.4 number comes in). They should add another video to show you how many lbs per day with a 5, 8, 12 hour well runtime (whatever is more realistic for a water system well)

@actionjackson5759 Жыл бұрын

How did you get the 694.4 gpm? That's where I'm lost and confused at.

@ese_f30 Ай бұрын

thats the mgd conversion

@HawasBajawi 6 жыл бұрын

Thank you for your video If I have reuse wastewater transmission via pipe line distance 400 km How much chlorine should be dosing per day? The daily water transport 115,000 m3/day

@vjcxmq 3 жыл бұрын

How do the units cross out so that lbs/day is equal to the multiplication of MGD, mg/L, and lbs/gal?? I don't understand how the formula works

@genehutson6865 Жыл бұрын

I’m wondering why the mg/l isn’t converted to gallons when doing the problem? I thought all units had to be the same type when doing these problems

@andresortez7633 5 жыл бұрын

This also only applies if you're working with Gas Chlorine, which is 100% pure. If you were working with solid chlorine, it'll be 65% pure If you were working with liquid chlorine, it'll be 12.5% pure

@robl3219 9 жыл бұрын

Can you do more problems based on a d-1 water distribution test? Thanks I enjoy your videos very well organized an Ramsay to understand

@JumpMan-qu3qs 2 ай бұрын

Thank you my good sir I hope it works an I pass my test

@tafarrier 10 жыл бұрын

GPM X 1440 = MGD

@Warrior-gv4uj 9 жыл бұрын

+tafarrier Wouldn't that equal GPD instead of Millions of GPD?

@tafarrier 9 жыл бұрын

yes it's GPD. when you do dosage problems your looking for MGD. 100,000 GPD = .1 MGD

@LoveMyAllure1 3 жыл бұрын

I understand it better by multiplying it by 1440. However, if one doesn’t desire to work with big numbers the video is a great example. 👍

@GoodmanMIke59 9 жыл бұрын

Look, I'm a steam plant engineering guy looking at a wastewater job. We don't think in MGD, but ... when in Rome. My concern is that he never gets rid of the "mg/L." Here's what I did ... 225 gal/min * 1440 min/day * 2 mg/L * 3.789 L/gal * 1 Kg/1000000 gm * 2.2 lb/gal Where's the "PFM" in his unit conversions?

@rme5531 7 жыл бұрын

Mike Goodman M (of Million gallons per day) cancelled out mg/l. Millions cancels out milligrams per liter(mg/l)