ENVIRONMENTAL ENGINEERING

PART-2

MADE EASY GATE HANDWRITTEN CLASSROOM NOTES

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Environmental Engineering Made Easy GATE Handwritten Notes Part-2

PLEASE NOTE : WE PROVIDE ONLY VERIFIED NOTES AND MATERIALS. ALL THE OTHER NOTES WHICH ARE AVAILABLE IN THE INTERNET WITH THE NAME MADE EASY CIVIL NOTES ARE FAKE AND ARE NORMAL CLASSROOM NOTES OF SOME COLLEGE. WE ALWAYS TRY TO BRING OUT QUALITY NOTES FOR FREE AND FOR THE SAKE OF STUDENTS WHO ARE REALLY WORKING HARD DAY AND NIGHT AIMING GOOD GATE/IES RANKS.

Waster Water Engineering :

Qualities of Wastewater/Sewage :
Wastewater is the combination of water and liquid waste originated from locality after different activities.
Sewage can be classified into three types.
Domestic Sewage
Industrial Sewage
Drainage Discharge/Stormwater/Drainage

Domestic Sewage :

It is mixture of water and liquid wasye originated due to domestic activites like washing, cooking, bathing etc.
Industrial Sewage : Wastewater originated due to industrial activites is termed as Industrial Sewage.

Combination of domestic and industrial wastewater is termed as Sanitary sewage,
Combination of kitchen and bathroom waste is termed as Sullage.

Storm water/Drainage :

It is sewage that is originated due to rainstorm water.

Sewers : Pipes used for carrying sewage from one point to another point are called Sewers.

Sewerage System :

It is method of collection, treatment and disposal of the treated sewage.

Sewerage system is generally of three types.

Seperate Sewerage System
Combined Sewerage System
Partially Seperated System

Physical Wastewater parameters :

All physical Waster Quality parameters are applicable here also.
Total Solids
Dissolved Solids
Suspended Solids
Settleable Solids

80% of water supplied goes into the sewage
Sewage consist of both organic and inorganic particles.
Organic particles are decomposed by the chemical and biological actions
Organic particles decomposed by biological action are termed Biodegradable organic matter
This biological decomposition can be carried out either in the presence or absence of oxygen. It it is carried out in the presence of Oxygen, it is termed aerobic. It it is carried out in the absence of Oxygen it is called Anaerobic.
The end products obtained depends upon the method on which the decomposition is carried out.