A COMPARATIVE STUDY OF DIFFERENT TECHNOLOGIES OF SEWAGE TREATMENT PLANT

Abstract

The Yamuna River runs through Noida on the west and southwest, while the Hindon River runs through it on the east and south. Noida is a part of the Yamuna River's catchment area. In the last 10 years, Noida has become a center for the real estate, electronics, and software development sectors. As a result, an beneath land network of conduits for the discharge of wastewater generates in the complex area is necessary to relieve pressure on existing municipal sewage treatment facilities. The sewage system for the complex was designed to take into account the natural slope. Three STPs for large group housings are being proposed in Noida: STP Group Housing 1 in sector 71 uses MBBR (Moving Bed Biofilm Reactor) technology, STP Group Housing 2 in sector 136 uses MBR (Membrane Bioreactor) technology, and STP Group Housing 3 in Greater Noida West Sector 1 uses SBR (Sequential Batch Reactor) technology. These facilities are designed and constructed with the purpose of eliminating organic material, sediments, and other pollutants from waste water before it reaches a water source. The effluent from these STPs is used for flushing water, irrigation, and the rest of the discharge into Municipal Drains. Many Physio-Chemical and Biological parameters are evaluated and compared in this study to the Central Pollution Control Board (CPCB) General Standards for the Discharge of Environmental Pollutants Part–A: Effluents into Inland Surface Water, as set forth in The Environment (Protection) Rules, 1986 Schedule–VI. Each STP's performance was also assessed in terms of Removal/Reduction Efficiency. Because Group Housing 1, uses 390 KLD of STP treated waste water for irrigation, the average effluent of this STP is compared to the CPCB Effluent Discharge Standards into Land for Irrigation. According to the findings, the BOD value of STP 2 and STP 3 effluent was not under the permissible level for the period of the research, and the Average Phosphate value of STP 3 was exactly up to the limit, as directed by the Central Pollution Control Board. General Standards for the Discharge of Environmental Pollutants Part –A: Effluents into Inland Surface Water is established by the Environment (Protection) Rules, 1986 Schedule-VI. According to the findings, according to CPCB Effluent Discharge Standards into Land for Irrigation and Inland Surface Water, all of the Physio-Chemical and Biological parameters examined for STP 1 were within limits.