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PROCESS DESCRIPTION FOR SEWAGE TREATMENT PLANT

TREATMENT SCHEME

Bar Screen Chamber Sewage collection Sump

Anoxic Tank with Mixer

Enzyme dosing system

MBBR ( FBBR Aeration Tank)

Secondary Clarifier

Hypo dosing

Pressure Sand Filter

Activated Carbon Filter

Bag Filter

UV Sterilizer

Sludge Holding Tank

Filter Press

The sewage will be collected through pipelines into a collection sump after screening

through bar screen. The collected sewage will be homogenized using diffusers connected to air

blower in the collection sump. Then the sewage will be pumped to anoxic tank which is provided

with mixer. From Anoxic tank then it over flow to MBBR (FBBR) Tank. Here enzyme dosing is

provided to increase the rate of reduction of organic pollutants. The air required for the aerationtank will be supplied through diffusers connected to air blower. Then the wastewater sludge

mixture will be allowed to flow by gravity into a secondary clarifier, where all settable solids &

sludge will be settled at the bottom. Portion of sludge will be recirculated to anoxic tank for

reduction of Ammonia. The clear supernatant would overflow into the clarified water tank, where

hypo will be dosed for disinfection. The treated water is pumped through a tertiary treatment plant

comprising of pressure sand filter, activated carbon filter followed by Bag filter and UV Sterilizer.

The sludge from the Secondary clarifier will be sent to the sludge holding tank. From there

it will pumped through a filter press and the dewatered sludge cakes will be periodically disposed

by client. Filtrate from filter press will be sent to collection sump.

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60 KLD STP Offer

PROCESS DESCRIPTION:

The Effluent will be collected through pipelines into a below ground collection sump after

screening through bar screen chamber. The collected effluent will be neutralized by the addition ofalkali & then the effluent will be pumped to up flow anaerobic sludge blanket reactor (UASB) for the

reduction of high organic load. The overflow from UASB will be sent to Aeration Tank for the

reduction of high organic pollutants. The air required for the aeration tank will be supplied through

diffusers connected to air blower. Then the wastewater sludge mixture will be allowed to flow by

gravity into a Secondary Clarifier, where the sludge will be settled at the bottom and the clear

supernatant would overflow into the clarified water tank. Hypochlorite solution will be dosed in the

clarified water tank for disinfection. Treated water further fine polished by tertiary treatment plants

comprising of Multi Grade filter

The sludge from the UASB & Secondary Clarifier will be transferred to the Sludge Drying Beds for

drying and disposal.

Chempure Technologies Pvt. Ltd.,

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