Saturday, July 19, 2008

UPGRADATION OF THE EXISTING SEWAGE TREATMENT PLANT (STP)


UPGRADATION OF THE EXISTING SYSTEM
:
POINT ONE
: FMR technology in place of existing conventional Activated Sludge System
Utilizing FMR technology can dramatically increase the efficiency of the Aeration system. Compared to conventional technologies the FMR is compact, energy efficient and user friendly. It also allows flexibility in design of the reactor tank.
The FMR is better than SAFF technology and works on the same principle as the submerged fixed film process (SAFF) with only one exception - the media is not fixed and floats around in the aeration tank. The main advantage of this system over the submerged fixed film process is that it prevents choking of the media.

FMR is an advanced version of the SAFF, which uses a floating media to avoid the practical choking problem of media in SAFF.

POINT TWO
:
The existing Sludge drying beds can be replaced with sludge thickener and centrifuge which is faster and efficient for disposal of sludge. It is also hygienic in view of five star hotel.

Sludge Thickening
:
Gravity thickening is accomplished in circular sedimentation basins similar to those used for primary and secondary clarification of liquid wastes
The sludge thickener shall be used to store and gravity thickens sludges from the waste treatment processes. Settled sludges are discharged on an as needed via sludge pumps. Water content in sludge can be reduced by mechanically compressing sludge in filter press, belt press etc. this can also be achieved by centrifuge mechanism and also by other mechanical devices. Excess supernatant wills gravity flow from the tank with provisions for manual decanting of waters via valves located on the side of the tank.
The Area Requirement of Sludge Thickener and Centrifuge:
Both the above items can be installed in the area presently occupied by sludge drying beds. No extra area is required.


POINT THREE
: The media in ACF and PSF are to be changed as they have losed filtration capacity. They have not been changed for a long time. POINT FOUR : The treated water after ACF can be passed through a Softener so that this water can be used in Cooling tower therby reducing consumption of ground water.
Saleem Asraf Syed Imdaadullah
Envo Projects
Mobiles : 9899300371
311/22,Zakir Nagar,New Delhi-110025
email: saleemasraf@gmail.com
web: http://saleemindia.blogspot.com

4 comments:

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  2. Wastewater from households and industry, commonly together with water runoff from urban areas, is conveyed by the sewerage system to sewage treatment plants for safe and economic treatment of sewage, and treatment and disposal of the resulting sludge
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