The master of bacteria is not free today and therefore i shall replace him and update you guys on

SEE THIS?


this is the every day water that u drink !

do you know that

it is US that makes it poosible for you to have such crystal clear drinkable water!

i am very important in sewage treatment
you are lucky that i am free to brief you on the complicated multiple processes

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Sewege treatment have to go through many different treatment stages

Treatment stages
-Primary treatment
1 Influx (influent) and removal of large objects
2 Sand and grit removal
3 Screening and maceration (raw sewage pumping)
4 Sedimentation
5 Activated sludge
6 Filter beds (oxidising beds)
7 Biological aerated filters
8 Membrane biological reactors
9 Secondary sedimentation
10 Rotating Biological Contactors

-Tertiary treatment
1 Filtration
2 Lagooning
3 Constructed wetlands
4 Waste removal
5 Nitrogen removal

- Phosphorus removal
1 Disinfection

-Package plants and batch reactors

It is only after all those process, that we , bacteria is put to good use
During the sewage treatments, sludges are accumulated

They have to treated and disposed in a safe and effective manner.

The usage of anaerobic bacteria reduces the amount of organic matter and the number of disease-causing microorganisms present in the solids. The most common treatment options include anaerobic digestion, aerobic digestion.

This process is carried out in the abscence of oxygen.

We are used to breakdown the waste producing BIOGAS which can be used in generators for electricity production and/or in boilers for heating purposes.

Hydrolysis: complex organic matter is decomposed into simple soluble organic molecules using water to split the chemical bonds between the substances.

Fermentation or acidogenesis: the chemical decomposition of carbohydrates by enzymes, bacteria, yeasts, or molds in the absence of oxygen.

Acetogenesis: the fermentation products are converted into acetate, hydrogen and carbon dioxide by so-called acetogenic bacteria.

Methanogenesis: methane (CH4) is formed from acetate and hydrogen/carbon dioxide by methanogenic bacteria...

Advantages:

-Anaerobic Digestion Produces five times less sludge compared to aerobic digestion

- Does not require energy consuming equipment

Disadvantages:

-it requires more stringent process control and only reduces the organic pollution by 85 to 90%,

Aerobic digestion is the degradation and purification process in which bacteria that thrive in oxygen-rich environments break down and digest the waste.We rapidly consume organic matter( pollutants) are broken down into carbon dioxide (CO2), water (H2O), nitrates, sulphates and biomass (micro-organisms).

There are both advantages and disadvantages in using us( aerobic bacteria) for sludge treatment.

Advantages :

- very effective in breaking down waste products

-better effleunt quality than that obtained in anaerobic processes

-useful when high flows of wastewater with variable composition are treated

Disadvantages:

-the production of huge amounts of biosolids (sludge)

- need of aeration ( significant energy consumption)

-Aerobic micro organisms under the microscope

______________________________

SEE how we sacrifice ourselves, swimming in deep shit for the good of humankind!

NOW that you are clear of my wonderful contributions, i am sure you would not maligned me for being a mean and destructive being and LOVE ME as you should.

=)

and before i go i shall end by showing you a nice candid shot of me!

The anaerobic and aerobic bacteria that is useful in sewage treatment!

aint we just the suavest =)