Explain the activitated sludge (aeration tank), Civil Engineering

Assignment Help:

Explain the Activitated Sludge (Aeration Tank)?

The activated sludge treatment process is a biochemical oxidation process. Organic solids are stabilized through the oxidation process in the activated sludge basin. This basin is also referred as aeration tank and the process is known as suspended growth process. The incoming waste to the activated sludge basin is composed of inorganic and organic solids. The organic portion of the incoming waste is responsible for the BOD and it represents the Food (F) for the microorganisms in the activated sludge basin.

The solids in the activated sludge basin are called mixed liquor suspended solids (MLSS). These solids are composed of an organic (MLVSS) and an inorganic part (MLFSS). The MLVSS is often considered to represent the microorganisms in the activated sludge basin. The stabilized organic solids are removed in the secondary sedimentation basin. Most of stabilized solids are returned or recycled to the activated sludge basin. Part of the stabilized solids is wasted each day. The wastewater from the aeration tank then flows over the secondary sedimentation basin (where the solids have been removed) and to the disinfection basin and then discharged to the receiving stream.


Related Discussions:- Explain the activitated sludge (aeration tank)

Duration activity for cast-in-place foundation formwork, A concrete contrac...

A concrete contractor historical records show that the construction duration for a cast-in-place foundation formwork is 1,000-SF/crew-day. Determine the number of days a 200,000-SF

Trigo, A pole which leans 11o from the vertical toward the sun casts a shad...

A pole which leans 11o from the vertical toward the sun casts a shadow 12m long when the angle of elevation of the sun is 40o. Find the length of the pole

Cross drainage work, Cross Drainage Work: Several natural streams, ri...

Cross Drainage Work: Several natural streams, rivers and canals cross the road. They have to be led across the road through culverts and bridges. That given structures is kno

What are rules for working of dip lorries, Q. What are rules for working of...

Q. What are rules for working of Dip lorries and their protection arrangements on a single line section explain with sketches? Ans.-Rules for working of Dip lorries - i. Sub

Survey chain, describe gunters chain in survey

describe gunters chain in survey

Main function of followers in driven h-piles, Question What is main fun...

Question What is main function of followers in driven H-piles ? Answer A follower is an extension between pile head and hammers which transfers blow to pile in which

Determine the basic concepts of prestressing, Determine the Basic Concepts...

Determine the Basic Concepts  of Prestressing In the year 1904, Freyssinet tried to introduce prestresses in concrete to resist stresses developed due to external loads. Later,

Define the phreatic line and phreatic zone, Define the Phreatic Line and Ph...

Define the Phreatic Line and Phreatic Zone Phreatic Line: In an unconfined aquifer, it represents the water table.   Phreatic Zone: In an unconfined aquifer, it is located b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd