Man, I've never taken math and been wrecking my brain what to study for the math part that I was overwhelmed with so much info that didn't even have the desire at all to study. Thank God I found his channel. A blessing, for sure. Is this really all the math for grade one?
Thanks for the video. I have an OIT in northern california but have been out of traditional school for about two decades, lol. Have done math refreshers for various job related tests but not a natural math wiz so always great when someone simplifies it like this. Gonna check out the other videos! Thanks again!!
leila sadrieh www.browntechnical.org/products/operation-of-wastewater-treatment-plants-a-field-study-training-program-vol-1-seventh-edition.html?gclid=Cj0KCQiA-qDTBRD-ARIsAJ_10yKUABt7RjovbNUGTcZ_y4eYlz_9lRfu3ZuoZU3jh_hnVnHzXATJJVQaAruXEALw_wcB Stick to the basics of the book; what things are and what they do. This book is a wealth of information but is waaaay overkill if you try and retain all of the knowledge. I'd highly recommend seeking out a specific review course geared towards the level of test you are taking.
Im studying for my 3a and was looking for review content and this one video was more useful than 2 weeks in basic ops. Well, off I go into your content. Thanks for this!
Dude you are great. Your videos are very helpful.I have a grade 1 in collections and studying for grade 2. Wish you had a class close to Gardena Ca. Thank you
This is wastewater math for the California state exams. I can't guarantee that this math will be on another states exam because I haven't taken an exam from another state. Also different states do the tests different ways. Ca goes grades 1-5 where as other states go grades 4-1 or D-A etc. Every state is different, this is ca grade 1 wastewater math. I hope that answers your question.
I have a question in a math book I need help whit. which would discharge more pounds per day of BOD to a treatment facility, a city with a population of 25,430 people, or an industry that discharges BOD at a concentration of 750 mg/I at a flow of 125,500 gallons per day? Determine the lbs.day discharged by both. The answer for industry is 785.0 lbs/day.But how do I get the answer for the city lbs/day?
@lerngthngs It depends greatly on where you live and who you work for. I looked up Orange County Sanitation District (which is near San Diego) and they start their OIT's (training position) at $25.42 - $30.90 per hour. Once you become a certified operator the pay increases to $30.98 - $37.66 per hour. When I was a Grade 2 in Atwater (central valley) I was making $23 per hour. Now I work in the Bay Area and I make $39.19 per hour as a Grade 3!!!!
This is a toughy cause they need you to know an unknown number. That unknown number is 0.17. It is estimated that every person produces around 0.17 lbs of BOD per day. So if you multiply 0.17 by the population you will get the answer.
OIT exams usually don't have a ton of specific wastewater info on them. OIT is an entry level position, they dont typically think you'll be able to do a whole lot of wastewater related problems.
Chlorine is added to waste water at a constant rate of 100 pounds in 24 hours. The waste water flow averages 1.4 MGD. How much chlorine would be used in 6 hours? .............How would you use the davidson pie to this question????
This question is a little confusing. If you do 100 pounds in 24 hours, then you would do 25 lbs in 6 hours (100 / 24 hours per day = 4.17 x 6 hours = 25). Are you sure you wrote the question right? email me at cawastewater@yahoo.com
Taking my 1 tomorrow. These videos have helped me greatly. Thanks for taking the time to do these
Thank you. I passed my Grade 1 test
Man, I've never taken math and been wrecking my brain what to study for the math part that I was overwhelmed with so much info that didn't even have the desire at all to study. Thank God I found his channel. A blessing, for sure. Is this really all the math for grade one?
I teach grade 1 math to operators in NC. I recommend your videos to the students. They are very useful.
Great videos thanks for the help, I am a treatment operator in Arizona and all of this is applicable for our exams as well. Keep up the great work
Thanks for the video. I have an OIT in northern california but have been out of traditional school for about two decades, lol. Have done math refreshers for various job related tests but not a natural math wiz so always great when someone simplifies it like this.
Gonna check out the other videos! Thanks again!!
I am a operator in north carolina the math is the same. thanks for putting these videos on youtube, they have helped me out alot.
Doesn’t hurt to come back and say thank you. I passed my cwea1
That's awesome brother 👏
Congrats!
Same here you helped me pass my grade 1
Congrats hey. Was it easy or hard
@@dez9090 did u take it in california
You are a good teacher Mr. Davidson thank you. ...
I am a new guy starting this area. Your video's are really great and they have given me a starting point. Thanks
Thank you for the videos. I'm on chapter 6 in the grade 1 book and the math was doing a fine job of confusing me. You broke it down perfectly.
Steve Black same here!
Youre welcome
Operation of Wastewater Treatment Plants, Vol 1 & 2 Edition 7. You can find them at www.owp.csus.edu/courses/wastewater.php
leila sadrieh www.browntechnical.org/products/operation-of-wastewater-treatment-plants-a-field-study-training-program-vol-1-seventh-edition.html?gclid=Cj0KCQiA-qDTBRD-ARIsAJ_10yKUABt7RjovbNUGTcZ_y4eYlz_9lRfu3ZuoZU3jh_hnVnHzXATJJVQaAruXEALw_wcB
Stick to the basics of the book; what things are and what they do. This book is a wealth of information but is waaaay overkill if you try and retain all of the knowledge.
I'd highly recommend seeking out a specific review course geared towards the level of test you are taking.
Thank you so much for taking the time to help everyone. Great video. I'm from Massachusetts.
Hello...
Your explanation has helped me tremendously in my new career keep the videos coming sir
Thanks for posting these! Studying for the EPA exam in Ohio coming up real soon.
Im studying for my 3a and was looking for review content and this one video was more useful than 2 weeks in basic ops. Well, off I go into your content. Thanks for this!
Hello, I am wastewater technician and allow me to tell you , great job. Thank you..
Thank you so much for your videos----you sure make it all so simple !!!
thank you Christine Williams this is very helpful
Thank you for easier way of looking at OIT Wastewater math. I am preparing myself for the exam in the state of Washington.
Thank you for this, it is helping with my studying for West Virginia and Virginia wastewater math.
didnt know the had math i n w.v. bygod
Thanks so much for this ! I take my s1 waste water exam tomorrow
12 years later and still watching
Dude you are great. Your videos are very helpful.I have a grade 1 in collections and studying for grade 2. Wish you had a class close to Gardena Ca. Thank you
Hello @CAwastewater. I would love to use your videos as an introduction to a class I'm putting together. Is that ok with you?
Fantastic! Thank you!
First of all i would convert imperial to Si units or wise versa, which will simplify significantly operator life
Thank you 🙏
@BlacksAreBeautiful Thanks! Where did you read about it?
Great content, We are a manufacturer of titanium anodes for wastewater treatment. Do you need titanium anodes?
This is wastewater math for the California state exams. I can't guarantee that this math will be on another states exam because I haven't taken an exam from another state. Also different states do the tests different ways. Ca goes grades 1-5 where as other states go grades 4-1 or D-A etc. Every state is different, this is ca grade 1 wastewater math. I hope that answers your question.
Nice Clear speaking voice!!!
I hope they help your husband too! Let me know if he has anymore questions. Thank you for watching the videos!
Thanks
It would be nice if they showed this in school
@BlacksAreBeautiful Thanks for letting me know. I just looked it up. Great article!
I have a question in a math book I need help whit. which would discharge more pounds per day of BOD to a treatment facility, a city with a population of 25,430 people, or an industry that discharges BOD at a concentration of 750 mg/I at a flow of 125,500 gallons per day? Determine the lbs.day discharged by both. The answer for industry is 785.0 lbs/day.But how do I get the answer for the city lbs/day?
.17lbs/ bod per person
Is this math useful for a collections entrance exam or is this beyond the scope of what is covered in the entrance exam?
Thanks
Non member here.
Trying to take & pass Grade 1 test for Instrumentation Tech. in So Cal.
Tips anyone.
Thanks for the compliment. Check out my videos for Grades 2 and 3 if you're interested!!!
@lerngthngs It depends greatly on where you live and who you work for. I looked up Orange County Sanitation District (which is near San Diego) and they start their OIT's (training position) at $25.42 - $30.90 per hour. Once you become a certified operator the pay increases to $30.98 - $37.66 per hour. When I was a Grade 2 in Atwater (central valley) I was making $23 per hour. Now I work in the Bay Area and I make $39.19 per hour as a Grade 3!!!!
This is a toughy cause they need you to know an unknown number. That unknown number is 0.17. It is estimated that every person produces around 0.17 lbs of BOD per day. So if you multiply 0.17 by the population you will get the answer.
Good knowledge
I have an examination for a OIT position and I was wondering if any one could give me an idea of what I should expect to be on the exam.
same here id imagine its mostly grade 1 stuff when's your test?
hosey my test is on the 9th
OIT exams usually don't have a ton of specific wastewater info on them. OIT is an entry level position, they dont typically think you'll be able to do a whole lot of wastewater related problems.
You're welcome!
@mosdad2240 You're very welcome
Chlorine is added to waste water at a constant rate of 100 pounds in 24 hours. The waste water flow averages 1.4 MGD. How much chlorine would be used in 6 hours? .............How would you use the davidson pie to this question????
draw hard
you didn't explain if I write out 4,000,000 for mgd or just use 4?
You would just use 4
You da man!
This question is a little confusing. If you do 100 pounds in 24 hours, then you would do 25 lbs in 6 hours (100 / 24 hours per day = 4.17 x 6 hours = 25). Are you sure you wrote the question right? email me at cawastewater@yahoo.com
@majenta1565 thanks!
@ghazikhan101 Thanks, and good luck!
This is for wastewater treatment so I imagine none of this is on the collections exam.