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By: Angel Bellace, Mike Merlino & Christian Snowden
What is nitrogen ?
Harmless gas that forms about 78% of
the earth's atmosphere.
Uses of nitrogen
Ammonia
Steel Manufacturing
Coolant
Oil and Petroleum Refineries
Atmosphere
Soil Nutrients
Forms of Nitrogen
How it bonds
Nitrogen fixation • nitrogen (N2) in the atmosphere is
converted into ammonium (NH4+).
How do plants get nitrogen? N2
Where it is in the body • Amino acid: Amino acids are
biologically important organic compounds
composed of amine and carboxylic acid.
• The human body contains about 7% of N
• Amino acid is a protein.
Chlorophyl green pigments found in
cyanobacteria and the chloroplasts of algae and plants.
The Removal of Nitrogen from Waste
Water
By: Alexandra LaSerre, Gabrielle Bekisz, Jordan Davis, and Andrew Bernstein
Why do we remove it?o Nitrogen dissolves oxygen while in
water. It stimulated aquatic plant growth towards aquatic life which leads to health problems.
o Nitrate is in drinking water and can cause human health conditions.
o All of this can lead to suffocation or even death if it is left untreated.
Damaging the earthIt’s simple…Eutrophication!
No lightNo life
o The algae covering the water is blocking the light that the fish need in order to survive.
Algal blooms *Explosive Growth of algae at or near the surface of water*
o Algal cells die and decompose…green water forms.
o Sunlight is being blocked.
Human Causes
o Trasho Toilets (Urine)o Gases
o Soil/ Fertilizers
Ammonia
o Acids in food attack the fish and cause this.
By: Samantha calio, christian stout, colin curry, bj mitchell, christine
naprava, andres arelleno
Fish Related to Ammonia & Ammonification
Ammonia is a colorless gas or liquid with a strong
smell and taste that is used especially in cleaning
products and can be found in waste and fertilizer.
What is Ammonia?
Ammonia and its relation to Fish
• Ammonia can cause a lot of damage to fish when it is exposed.
• Ammonia is a poison and can be deadly.• It is potentially a waste product.• It is basically decomposition.
Damage to Fish Because of Ammonia
Ammonia Chart
AmmoniumThis is Ammonium. It is an ion that is a compound between nitrogen and hydrogen. It is a protonation of Ammonia, meaning it is the product of a proton being transferred from ammonia to a molecule. It precedes Ammonia.
Ammonium (Cont.)
• Ammonium is then processed and this is called Ammonification• Ammonification is an important stage in the nitrogen cycle.• Ammonification is the decomposition through water and soil of plant and animal
matter.
Ammonification
Ammonification (cont.)
NitrificationBy: mia grace, jimmy Coia, Alyssa zito, Jonathan linden, Jacqueline
brida, frank carano
Step one:NH3 turns into NO3
Oxygen needed
Rotating biological contractor
Step two:Oxygen added
Aerator
Step 3:NO3 turned into N2
Secondary clarifier
Denitrification
By: Alyssa Quinn, Robert Iarrobino, Dominic
Cappella, Joie Dianjoell, Zach McGuckin and Ryan
Sullivan
Denitrification is an anaerobic respiration process in which nitrate
serves as the electron acceptor.
NO3----> NO2---->NO---->N2O---->N2
What is Denitrification?
●Denitrification is a natural process carried out by many
microorganisms when sufficient oxygen is lacking.
Denitrification in the waste water
N2 gas going back in the air!
● Denitrification is essentially the conversion of nitrate to nitrogen gas. Denitrification also becomes the key pathway for dissimilative nitrate reduction, which is the process in
which nitrates are reduced from the soil, the former being highly toxic for living organisms.
Bacteria in the WWTP
I need O2!
Where can we get it?
I got it from the nitrate!! ;) LOL
Sludge
