Field trip- Sewage treatment Plant
On 20 February 2024 students of 6th and 7th along with class teachers went for a field trip to the sewage treatment plant. we arrived there at 10:30 AM. near Hiremagalur Chikkamagaluru town, Karnataka. Trip objective: The objective of the trip was to get to know the manual sewage water treatment steps Field observation: We were guided by the host who explained in detail about the following objective. 20 MLD capacity sewage treatment plant is based on MBBR technology to treat the sewage of this district prior to disposal into water body under the umbrella of Karnataka, urban water supply and drainage board Area consumed: 5983 sqm. Manual sewage water treatment involves several steps to remove impurities and contaminants. Here’s a simplified outline of the process:

Preliminary treatment: This involves screening to remove large objectives like sticks, rags, and plastics through a screening method that could damage equipment further downstream.

Primary treatment: this step is done through a grid system, and the sewage undergoes sedimentation, where heavier solids settle at the bottom forming sludge. This helps remove a significant portion of suspended solids.

Secondary treatment: Biological processes are employed to further through MBBR reactors, which break down organic matter in the sewage.

Disinfection: To ensure the treated water is safe for discharge or rescue, it undergoes disinfection to kill any remaining pathogens through chlorination. Sludge treatment and disposal: The sludge produced during primary and secondary treatment needs to be treated separately. This is done by drying sludge followed by rescue in application in agriculture. Conclusion: The trip ended at about 1 PM. It can be concluded that the trip was successful and we believe that our objective was achieved.