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

https://sites.google.com/a/g.coppellisd.com/nitrogen-cycle/1-nitrogen-fixation/haber%20process.png?attredirects=0

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