Process Calculation & Design of Sewage Treatment Plant (Sequential Batch Reactor) of Sehore Town Madhya Pradesh
- Version
- Download 17
- File Size 846.01 KB
- File Count 1
- Create Date 1 April 2025
- Last Updated 1 April 2025
Process Calculation & Design of Sewage Treatment Plant (Sequential Batch Reactor) of Sehore Town Madhya Pradesh
Authors:
Mritunjay Namdev, Dr. Vivek Soni, Arpit Saxena
1M.Tech. Scholar, Associate Professor, Assistant professor, Assistant Professor
Dept. of Civil Engineering, Radharaman Engineering College, Bhopal (M.P)
Abstract: Designing a Sewage Treatment Plant (STP) based on Sequencing Batch Reactor (SBR) technology involves several key considerations. SBR technology is a type of activated sludge process where wastewater is treated in batch mode rather than continuous flow. Screened, de-gritted sewage shall be fed into the Cyclic Activated Sludge Process / SBR Process Basins for biological treatment to remove BOD, COD, Suspended Solids, Biological Nitrogen and Phosphorous. SBR / Cyclic Activated Sludge Process shall work on Cyclic / Batch mode in single step. It shall perform biological organic removal, Nitrification, DE nitrification and Biological Phosphorous removal. It shall be capable of simultaneous sludge stabilization. The oxygen required shall be supplied through fixed type fine bubble diffused aeration system with auto control of oxygen level in tank. The system shall have a SVI < 120 for higher settling rates and should be designed in such a way that growth of filamentous bacteria is restricted. Complete operation of SBR / Cyclic Activated Sludge Process including decanting rate, sludge recirculation and wasting of excess sludge shall be controlled by PLC. Treated Sewage from SBR / Cyclic Activated Sludge Process units shall be collected in Chlorination tank for its disinfection. Treated effluent from this STP will have discharge standards laid down by National Green Tribunal, during Apr 2019, Therefore, the revised standards i.e. BOD5 < 10 mg/l, TSS < 20 mg/l, pH between 5.5 – 9.0, Nitrogen (Total) Sewerage network and STP of Sehore Town 11 < 10 mg/l, COD < 50 mg/l, Phosphorus Dissolved < 1 mg/l and Faecal Coliforms < 100 MPN / 100 ml (230 Acceptable) will have to be maintained before reuse or discharge.
Keywords: STP, SBR, Reuse, Population Forecasting, BOD, COD
Download