Underground STP
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WIPL-P
Process Description – WIPL-P
1. Primary Collection: Wastewater flows by gravity into this chamber, where we reduce the BOD (Biochemical Oxygen Demand) and COD (Chemical Oxygen Demand) levels of the incoming wastewater.
2. MBBR Zone: The water then overflows from the Primary Collection chamber into the MBBR Zone, where specialized media is used to further reduce BOD and COD. Aeration is provided in this chamber through an air blower to support the biological treatment process.
3. Settling Zone: Sludge from the MBBR Zone settles in this chamber, and is recirculated back to the Primary Collection chamber via a pump for continued processing.
This continuous process operates for 18 to 24 months, with only 50% of the sludge removed from the Primary Collection chamber during this period.
WIPL-FF
Process Description – WIPL-PL-FF
The process follows the PSRT Model, with the addition of a tertiary treatment stage to remove suspended solids from the wastewater.
1. Filter Feed Tank: Overflow from the Settling Zone flows into this chamber, where a submerged pump feeds the wastewater into the Multi-Grade Filter system.
2. Multi-Grade Filter (MGF): This vessel is filled with sand media, which effectively removes suspended solids from the wastewater as it passes through.
3. Activated Carbon Filter: After passing through the MGF, the water enters an Activated Carbon Filter vessel, where the activated carbon media removes odors and other impurities.
4. Treated Water Tank: This tank serves as the storage reservoir for the treated water, which can be used for various applications such as gardening, flushing, and more.
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