Wastewater Treatment Pumps Flashcards

What are the two major categories of pumps? And the two major category of pumps is centrifugal pumps and positive displacement pumps.

So that brings us to our next one is what is a centrifugal pump? And that is a pump that uses a rotating impeller to impart velocity to a liquid and converts that velocity into pressure.

So when you're thinking about a centrifugal pump, it looks like a spinning fan motion where the impeller rotates in a certain way.

And then it really just throws the water as it's going through the impeller.

It kind of throws the water into a direction.

to impart that velocity and converse that uh velocity and the pressure so that's what a centrifugal pump does and um so yes that's that's what a centrifugal pump does so uh the next one is then the second type of pump what is a positive displacement pump And that is a pump that traps a specific volume of material and mechanically forces it through the discharge.

So when we think about a positive displacement pump, a positive displacement pump is usually used in chemical applications.

So when we're feeding chemical into a system, it's usually through a positive displacement pump.

And that so a centrifugal pump will probably pump something heavier or larger in a wastewater system.

through a different process but a positive displacement is gonna uh add you know add chemical to a system so um which pump is commonly used for large wastewater flows and like that's what i was just saying that is a centrifugal pump that does that so when you got the raw influence coming in um and being pumped throughout the wastewater facility it's going to be done by a centrifugal pump what component moves water inside a centrifugal pump and as we talked about earlier again that is the impeller that is the The in the heart of the pump is the impeller and you got different types of impellers.

You got a closed impeller.

You got an open one.

You got a I think a mixed flow impeller.

It's different types but But yeah, these impellers are what it looks like a fan when you look inside of a fan and it just goes like one direction and then it spins the water off of that into the next process or to the volute.

And then it goes on through its process.

So that's where the impeller is.

What is the purpose of the volute in a centrifugal pump? And that's it collects liquid leaving the impeller and helps convert velocity into pressure.

So just like what I was saying, once the water is spinned off of the impeller, it goes to the volute and it converts the velocity into pressure.

What is Pumphead? And pump head is the amount of energy a pump adds to a liquid, commonly expressed in feet of liquid.

So pump head is that.

And it's very important to know head and pressure and all those things.

I'm not a pump master or knowing all about pumps.

I know a little bit, but yeah, you have to know the amount of head and amount of pressure in a pump in order for it to run.

What are the two major categories of pumps? And the two major category of pumps is centrifugal pumps and positive displacement pumps.

So that brings us to our next one is what is a centrifugal pump? And that is a pump that uses a rotating impeller to impart velocity to a liquid and converts that velocity into pressure.

So when you're thinking about a centrifugal pump, it looks like a spinning fan motion where the impeller rotates in a certain way.

And then it really just throws the water as it's going through the impeller.

It kind of throws the water into a direction.

to impart that velocity and converse that uh velocity and the pressure so that's what a centrifugal pump does and um so yes that's that's what a centrifugal pump does so uh the next one is then the second type of pump what is a positive displacement pump And that is a pump that traps a specific volume of material and mechanically forces it through the discharge.

So when we think about a positive displacement pump, a positive displacement pump is usually used in chemical applications.

So when we're feeding chemical into a system, it's usually through a positive displacement pump.

And that so a centrifugal pump will probably pump something heavier or larger in a wastewater system.

through a different process but a positive displacement is gonna uh add you know add chemical to a system so um which pump is commonly used for large wastewater flows and like that's what i was just saying that is a centrifugal pump that does that so when you got the raw influence coming in um and being pumped throughout the wastewater facility it's going to be done by a centrifugal pump what component moves water inside a centrifugal pump and as we talked about earlier again that is the impeller that is the The in the heart of the pump is the impeller and you got different types of impellers.

You got a closed impeller.

You got an open one.

You got a I think a mixed flow impeller.

It's different types but But yeah, these impellers are what it looks like a fan when you look inside of a fan and it just goes like one direction and then it spins the water off of that into the next process or to the volute.

And then it goes on through its process.

So that's where the impeller is.

What is the purpose of the volute in a centrifugal pump? And that's it collects liquid leaving the impeller and helps convert velocity into pressure.

So just like what I was saying, once the water is spinned off of the impeller, it goes to the volute and it converts the velocity into pressure.

What is Pumphead? And pump head is the amount of energy a pump adds to a liquid, commonly expressed in feet of liquid.

So pump head is that.

And it's very important to know head and pressure and all those things.

I'm not a pump master or knowing all about pumps.

I know a little bit, but yeah, you have to know the amount of head and amount of pressure in a pump in order for it to run.