hello, I am conducting experiment using this waster displacement method right now for my project, if i want to know the daily volume production of the biogas, should i refill it everyday?
i have the same question before. but i think this method only to determine the rough value of the volume collected, hence the "displaced water volume" method. if you want to collect the gas you can use "Tedlar bag". specifically used for gas collection/gas sampling.
@@ayeish_ if we want to collect the gas, so we have to put some valve above measuring cylinder to connect with tedlar bag? I want to know the composition of the gas.
@@keryanti2607 yes if you can put some kind of valve, but how?. There is a way to extract the gas by using syringe and tubings but it’s toooo complicated and risk of gas leaking. So for my experiment i use gas displacement method to know the total volume of gas. Then using the same parameters, i make the same experiment but into a tedlar bag. Then can be send to Gas Chromatography. i dont know if this a correct way to do it but. Its the only solution for lab scale that i can think of 😭
@@ayeish_ I'm sorry for my mistake. I mean we have to put valve and tubing connector above conical flask (reactor) to collect gas for GC analysis. Yes, I agree with you, that too risk for gas leaking. It is quite challenging.
What an ingenious method to measure! Thanks for the great video!
great video, very helpful thank you
Cool !
could pls explain what is the purpose of pulling that second measuring cylinder
hello, I am conducting experiment using this waster displacement method right now for my project, if i want to know the daily volume production of the biogas, should i refill it everyday?
Can this be done with a sideway tube?
Instead of directly putting the delivery tube beneath the measuring cylinder , you can use a beehive shelf.
So is the water displaced by the gas then just goes back into the plastic box?
Great video by the way?
That is correct!
thanks mam
can we conduct this experiment to measure CO2?
no cuz co2 dissolve in water to give carbonic acid
And how to keep that gas inside cylinder?
i have the same question before. but i think this method only to determine the rough value of the volume collected, hence the "displaced water volume" method. if you want to collect the gas you can use "Tedlar bag". specifically used for gas collection/gas sampling.
@@ayeish_ if we want to collect the gas, so we have to put some valve above measuring cylinder to connect with tedlar bag? I want to know the composition of the gas.
@@keryanti2607 yes if you can put some kind of valve, but how?. There is a way to extract the gas by using syringe and tubings but it’s toooo complicated and risk of gas leaking. So for my experiment i use gas displacement method to know the total volume of gas. Then using the same parameters, i make the same experiment but into a tedlar bag. Then can be send to Gas Chromatography. i dont know if this a correct way to do it but. Its the only solution for lab scale that i can think of 😭
@@ayeish_ I'm sorry for my mistake. I mean we have to put valve and tubing connector above conical flask (reactor) to collect gas for GC analysis. Yes, I agree with you, that too risk for gas leaking. It is quite challenging.