Denitrators

No, he was right. The bacteria consume oxygen, thus reducing nitrate to
nitrogen. A lot of other things get reduced of oxygen as well.

No he is wrong. O2 is NOT produced. The oxygen's that are removed from
NO2- end up as H2O. NOT free O2. It is a VERY complex series of events.
Never is O2 produced along the way.

Look into denitrification. It is an ENZYMATIC process in anaerobic bacteria
involving more than one enzyme.

SEE: http://www.reefscapes.net/articles/a...ogencycle.html

(Look at the part that refers to denitrification and anaerobic bacteria)

I meant to write oxygen's that are removed from NO3- end up as H2O.


It actually goes NO3---NO2----N2 + H2O

Stoutman wrote:
I meant to write oxygen's that are removed from NO3- end up as H2O.


It actually goes NO3---NO2----N2 + H2O

No, it doesn't. You are basically arguing that you start out with NO3 and H2O
and it goes

2NO3 & 2H2O ---- 2NO2 & 2H2 ---- 2N01 & 2H2 ---- N2 & 2H2O.

The water molecules are never broken up. They just pass through when the system
is functioning properly. When water molecules do get stripped of their oxygen,
the hydrogen usually combines with sulfur to produce hydrogen sulphide.

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

No, it doesn't. You are basically arguing that you start out with NO3 and
H2O
and it goes

No I am not arguing that.




2NO3 & 2H2O ---- 2NO2 & 2H2 ---- 2N01 & 2H2 ---- N2 & 2H2O.

The water molecules are never broken up.

Very good! When did I write water molecules were broken up?

They just pass through when the system is functioning properly.

Still wrong. Water is produced here. 2NO3 + 12H+ ---- N2 + 6H2O

This is an enzymatic reaction involving nitrate reductase. The process is
called DENITRIFICATION. O2 is NOT produced!

Read for yourself:
http://en.wikipedia.org/wiki/Denitrification
http://www.reefscapes.net/articles/a...ogencycle.html

When water molecules do get stripped of their oxygen, the hydrogen usually
combines with sulfur to produce hydrogen sulphide.

What? When did I mention water molecules getting stripped of oxygens?

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

Stoutman wrote:

Very good! When did I write water molecules were broken up?

You stated that hydrogen combines with oxygen from the NO3 to produce H2O. When
asked where the hydrogen comes from, you stated that the "enzymes" produce it
from water. The only way they could do that is to strip oxygten atoms off the
water molecules.

Still wrong. Water is produced here.

Not possible.

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

Very good! When did I write water molecules were broken up?

You stated that hydrogen combines with oxygen from the NO3 to produce H2O.
When asked where the hydrogen comes from, you stated that the "enzymes"
produce it from water.

No, what I wrote was that the H+ come from general acids located within the
enzymes active site. Do you know what a general acid is in this context?
If not I will explain it to you.

The only way they could do that is to strip oxygten atoms off the water
molecules.

Wrong. The H+ source comes from protonated amino acid residues (general
acids) located in the enzymes active site.

This might help: H+ doesn't really exist in an aqueous environment, it
exists as H3O+. This is the protonated form of water.
There are other things (molecules) in nature that can be protonated, not
just water.

For example some amino acids have basic amine side chains that will be
protonated at any given time. They can and do serve as the source of H+ in
the active site of an enzyme.

I don't expect everyone to understand this stuff, but ...


Still wrong. Water is produced here.

Not possible.

Uggg.




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

In the post that you quoted, he did not say that oxygen
was produced, yet you said that he was wrong, and now you
are trying to prove yourself right by adding stuff that
was not in the post that you quoted.

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/16/2006 12:20 PM:
No, he was right. The bacteria consume oxygen, thus reducing nitrate to
nitrogen. A lot of other things get reduced of oxygen as well.

No he is wrong. O2 is NOT produced. The oxygen's that are removed from
NO2- end up as H2O. NOT free O2. It is a VERY complex series of events.
Never is O2 produced along the way.

Look into denitrification. It is an ENZYMATIC process in anaerobic bacteria
involving more than one enzyme.

SEE: http://www.reefscapes.net/articles/a...ogencycle.html

(Look at the part that refers to denitrification and anaerobic bacteria)

In the post that you quoted, he did not say that oxygen
was produced

Neither did I. When did I write O2 was produced? Read this again: NO3
goes to N2 and H2O. No O2 is produced in this process (denitrification).

, yet you said that he was wrong, and now you are trying to prove yourself
right by adding stuff that was not in the post that you quoted.

I am supporting my argument that I had from the very beginning by providing
a web site link as support.

Wayne reread my posts.

I said from the VERY beginning that NO3 goes to H2O and N2. Never did I
write O2 was produced.

You wrote I was wrong from the beginning.

Who do you think is right now Wayne?

You must feel pretty silly?

Hehehehe. Lol lol lol.

lol

LOL you keep turning your statements around, and when you
quote me, you deliberately leave off important parts of
the previous post in your quote to cover your tracks.

Wayne Sallee
Wayne's Pets



Stoutman wrote on 9/16/2006 4:31 PM:
In the post that you quoted, he did not say that oxygen
was produced

Neither did I. When did I write O2 was produced? Read this again: NO3
goes to N2 and H2O. No O2 is produced in this process (denitrification).

, yet you said that he was wrong, and now you are trying to prove yourself
right by adding stuff that was not in the post that you quoted.

I am supporting my argument that I had from the very beginning by providing
a web site link as support.

Wayne reread my posts.

I said from the VERY beginning that NO3 goes to H2O and N2. Never did I
write O2 was produced.

You wrote I was wrong from the beginning.

Who do you think is right now Wayne?

You must feel pretty silly?

Hehehehe. Lol lol lol.

lol

Wayne what statements of MINE have I turned around?

Give one.