Activated Sewage Treatment Plant by Karunya Environs

In order to keep pace with never ending demands of clients, our company offers Activated Sewage Treatment Plant.

KARUNYA ENVIRONS designs and supplies very efficient Sewage Treatment Plant using the “State of Art” design and Technology not only to bring up to desired standards but also to recycle water and maintain a zero discharge plant.

Karunya Environs offers Sewage Treatment Plant from 10 cum/day to 1000 cum/day. The entire treated wastewater can be recycled and reused for gardening, cooling tower, floor wash and other non-critical applications. Karunya Environs also offers prefabricated sewage treatment plants of 10 KLD to 50 KLD Sewage treatment plant comprises of collection tank, aeration tank, sludge digester, filter press, screen, dual media filters and diffused aeration system. The system utilizes physical, chemical and biological processes to remove physical, chemical and biological contaminants. The comprehensive range of water treatment plants includes many technologies which can be used to treat water.

1) Extended Aeration System:

Extended Aeration is a type of activated sludge process with primary settling. It is most commonly used treatment system in small developments and resorts. In an extended aeration (EA) system, sewage is brought into a biological basin where it is degraded by naturally occurring bacteria. After an “extended” period of time, typically 24 hours of detention time, the mixed liquor (ML) is sent to a clarifier where it is allowed to settle. The retention time will be very long in order to generate less sludge. Secondary effluent (SE) is drawn off the clarifier and the settled biomass is returned to the head of the plant. To maintain a constant mixed liquor concentration, a certain amount of the settled biomass is wasted (WAS) out of the plant, typically to an aerated sludge holding tank or digester.
To improve the efficiency of treatment, an anoxic zone, or un-aerated zone, is often placed at the head of the biological basin. This zone allows for denitrification, which helps moderate the pH, as well as provides a better settling biomass. The whole process is aerobic and the BOD removal efficiency is higher than activated sludge process which makes it desirable to use where it is to be followed by tertiary treatment for reuse.

2) Sequential Batch Reactor:

The sequencing batch reactor (SBR) process is a sequential suspended growth (activated sludge) process in which all major steps occur in the same tank in sequential order. The complete five phases take place in single reactor thus reduces the footprint. SBRs can be designed and operated to enhance removal of nitrogen, phosphorus, and ammonia, in addition to removing TSS and BOD.

The five stages of SBR are:

• FILL: Wastewater fills the tank, mixing with biomass that settles during the previous cycle.
• REACT: Air is added to the tank to aid biological growth and felicitate waste reduction.
• SETTLE: Mixing and Aeration stop during this stage to allow solids to settle.
• DRAW: Clarified effluent is discharged.
• IDLE: Sludge can be removed during this stage.

Merits of technology:

• Lower installed cost than "Conventional" methods
• Less land space required for SBR treatment plants
• Consistent high-quality, low nutrient level effluent
• Tolerates wide swings in flow and organic loading
• No clarifier required
• Better control over filamentous growth and settling problems
• Simple sludge process management
• Less equipment to service and maintain

Range from rs. 10,00,000- 1 Cr and all these prices will vary as per the capacity and clients specifications.