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
5 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
9 ай 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
@actionjackson5759
Жыл бұрын
How did you get the 694.4 gpm? That's where I'm lost and confused at.
@carlrushing7093
4 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)
@jrenfro66
Жыл бұрын
Love the videos ....Question,why not use the Davidson pie chart for this problem ?
@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
@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
@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
@GoodmanMIke59
8 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
6 жыл бұрын
Mike Goodman M (of Million gallons per day) cancelled out mg/l. Millions cancels out milligrams per liter(mg/l)
@andresortez7633
4 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
@jackkkozzlovsky4372
7 жыл бұрын
LOL that slide through! lmao!!!!
@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. 👍
@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
@ezdinero9813
2 жыл бұрын
I totally lost you when the 225 gpm converts to 694.? ? ? ? ?
@yadmala3593
5 жыл бұрын
Thanks Mr
@RajendraKumar-gs6de
6 жыл бұрын
Hi, Why we are multiplying by 8.34?
@SerenityRick
6 жыл бұрын
8.34 is the weight in pounds of 1 gallon of water
@abigailaldea7956
4 жыл бұрын
@@SerenityRick he should have stated that too.
@alexjrful
4 жыл бұрын
How did he get 694.4 GPM?
@DeagleBeagle
3 жыл бұрын
same as the million gallons per day do the math and divide by how mins in a day
@elainedesantana1993
2 жыл бұрын
What is 8,34?
@The_Joser
2 жыл бұрын
The weight of one gallon of water in lbs. I noticed he didn't state that bit of info during the lesson.
@tonymadson2408
Жыл бұрын
the weight of water per gallon
@meatfurbush8991
8 жыл бұрын
If you're in WASTEWATER...you should know where that formula comes from
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