Denitrators

NO3 is not split into N2 and O2 it is broken down enzymatically into N2
and H2O.

No, it's not. The oxygen is removed by bacteria, releasing the nitrogen.


The oxygens are removed from NO3- and released to the 'system' in the form
of H2O not O2 as you stated earlier. This should give you a clue: Why
would anaerobic bacteria that thrive in low O2 environments produce O2?
Don't you think this would be counter productive to there survival?

I will write this again for the umpteen time. This process is called
DENITRIFICATION. It is an enzymatic process that converts NO3- into H2O and
N2 (O2 is NOT produced). The process involves anaerobic bacteria that
contain the enzyme nitrate reductase (among others involved in
denitrification).


O2 is NOT produced.

Yes o2 is not produced, but even when he reposted
correctly you keep saying that he is wrong, when he
corrected himself by removing the o2 part, yet you still
claim he is wrong, and then when you are questioned about
it, you keep going back to the o2 thing, even though his
corrected post did not mention o2.

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/16/2006 4:43 PM:
NO3 is not split into N2 and O2 it is broken down enzymatically into N2
and H2O.
No, it's not. The oxygen is removed by bacteria, releasing the nitrogen.


The oxygens are removed from NO3- and released to the 'system' in the form
of H2O not O2 as you stated earlier. This should give you a clue: Why
would anaerobic bacteria that thrive in low O2 environments produce O2?
Don't you think this would be counter productive to there survival?

I will write this again for the umpteen time. This process is called
DENITRIFICATION. It is an enzymatic process that converts NO3- into H2O and
N2 (O2 is NOT produced). The process involves anaerobic bacteria that
contain the enzyme nitrate reductase (among others involved in
denitrification).


O2 is NOT produced.

Wayne. Follow closely. I will type slowly for you.


I (STOUTMAN) WROTE:
NO3 is not split into N2 and O2 it is broken down enzymatically into N2
and H2O.


PATTERSON WROTE THIS IN RESPONSE TO MY MESSAGE:
"No, it's not. The oxygen is removed by bacteria, releasing the nitrogen."


He is stating that my above statement is wrong by saying "NO, it's not",
therefore this means he does not agree with me that NO3- goes to N2 and H2O.

If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes? Do
you think it stays in the enzyme?

It is my contention that Patterson STILL thinks O2 is produced.

Ok, so your point is that he is saying no to your no :-)
And you are saying no to his no :-)

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/16/2006 5:28 PM:
Wayne. Follow closely. I will type slowly for you.


I (STOUTMAN) WROTE:
NO3 is not split into N2 and O2 it is broken down enzymatically into N2
and H2O.


PATTERSON WROTE THIS IN RESPONSE TO MY MESSAGE:
"No, it's not. The oxygen is removed by bacteria, releasing the nitrogen."


He is stating that my above statement is wrong by saying "NO, it's not",
therefore this means he does not agree with me that NO3- goes to N2 and H2O.

If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes? Do
you think it stays in the enzyme?

It is my contention that Patterson STILL thinks O2 is produced.

Ok, so your point is that he is saying no to your no :-)
And you are saying no to his no :-)

No

Not exactly.

Stoutman wrote:

If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes? Do
you think it stays in the enzyme?

Not enzyme. Bacteria. Yes, that's exactly what happens. The oxygen is consumed
by the bacteria.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.

If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes?
Do you think it stays in the enzyme?

Not enzyme. Bacteria. Yes, that's exactly what happens. The oxygen is
consumed by the bacteria.

First:
These denitrifying bacteria are anaerobic. They thrive in LOW oxygen
conditions. Anoxic conditions are required for their survival. This means
they do not need nor do they consume oxygen to survive. Why do you insist
that anaerobic bacteria involved in denitrification consume oxygen? Oxygen
is a TOXIN for most anaerobic bacteria. They do not produce nor consume
oxygen. Anaerobic bacteria can not even grow in the presence of oxygen.

Second:
Oxygen is NOT produced. The end result biproducts of nitrate metabolism by
denitrifying bacteria are N2 and H2O.

I am not guessing here.

nitrogen cycle:
http://www.reefscapes.net/articles/a...ogencycle.html
http://en.wikipedia.org/wiki/Denitrification

If you had a system with aerobic bacteria in a filter
medium, with good water movement growing well with lot's
of oxygen, and lot's of nitrates, and then you were to
seal it off from fresh oxygen and there was plenty of food
there for the bacteria to continue growing, how long do
you think it would take for the nitrates to reach 0 nitrates?

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/16/2006 8:19 PM:
If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes?
Do you think it stays in the enzyme?
Not enzyme. Bacteria. Yes, that's exactly what happens. The oxygen is
consumed by the bacteria.

First:
These denitrifying bacteria are anaerobic. They thrive in LOW oxygen
conditions. Anoxic conditions are required for their survival. This means
they do not need nor do they consume oxygen to survive. Why do you insist
that anaerobic bacteria involved in denitrification consume oxygen? Oxygen
is a TOXIN for most anaerobic bacteria. They do not produce nor consume
oxygen. Anaerobic bacteria can not even grow in the presence of oxygen.

Second:
Oxygen is NOT produced. The end result biproducts of nitrate metabolism by
denitrifying bacteria are N2 and H2O.

I am not guessing here.

nitrogen cycle:
http://www.reefscapes.net/articles/a...ogencycle.html
http://en.wikipedia.org/wiki/Denitrification

If Patterson believes that oxygen is removed by the enzyme and only N2 is
produced. What happens to the oxygen? Where do you/he think it goes?
Do you think it stays in the enzyme?

Not enzyme. Bacteria. Yes, that's exactly what happens. The oxygen is
consumed by the bacteria.

This might help your confusion:
When you state that oxygen is consumed by the bacteria in the
denitrification process where does it end up? where does it go? what form
does it take?

If your answer is not H2O you need to do more reading.

Stoutman wrote:

I will write this again for the umpteen time. This process is called
DENITRIFICATION. It is an enzymatic process that converts NO3- into H2O and
N2 (O2 is NOT produced).

And, once more, H2O is NOT produced. It is merely a carrier.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.