Project Name : Energy Conservation through‘Sewage Treatment Plant’
Project Theme: Industry
Aim: Energy Conservation and Reduction in Pollution through‘Sewage Treatment Plant’ [ISBR Technology]
Objective/Aim:
1) Clean waste water effectively
2) Obtain good manure
3) To self generate power
Scientific Principle Involved: The principle of this newer technology ‘Improved Sequential Batch Reactor’ (ISBR), project is to treat the waste water at physical, biological and chemical levels to remove these 3 contaminants effectively. At the same time to produce and conserve energy by ‘Self-Generating’ power through biogas and hydro-power. Then to show how the use of gravitational force can nullify the input power consumed by the plant
Materials Used: Fabricated old junk iron sheets (freely available) & pipes, a big regular paint box and plastic bottle (Bournvita) with lid, aeration pump, L.E.D bulbs plastic toy plants and paper boxes.
Working Investigation/Findings: The ISBR is a simultaneously done process in a beautiful circular reactor, the processes of screening, filling, decantation, aeration and settling, batch by batch to clean 98% of the waste water. All these processes and the reactor are well shown in our working model. The biogas (represented by cotton) formed in this process is converted to power and us shown by L.E.D bulbs connected to batteries. A continuous flow of water and movement of hydroturbine to generate power is also shown in the project. The display charts also show the working of the model and the futuristic plan used in this technology.
Results: 98% clean water, biological oxygen demand & total suspended solids< 10mg/l. Chemical oxygen demand <50mg/l. Total Kjeldahl Nitrogen<5mg/l. Most probable Number of Bacteria 2 %.Total Nitrates<10mg/l. Phosphorous <2 mg/l. Reduction in man-power using industrial automation. Good manure produced, 60-70% power is self- generated.
Utility and further scope of the project: Utility of the project is all the objectives are achieved under one roof like ISBR requires much less space compared to conventional STP. 50% reduction of organic pollutant due to new design of the plant, hence reduction in power consumption. Generation of electricity by Biogas-methane, hydro-turbines, solar energy and reduction in the green house gas (Methane) Increase in crop production due to good manure. Through effective sewer network from public places, a huge reservoir can be built in an appropriate geographical location with huge common ISBR STP.
Name of the School: City Pride School, Pune, Maharastra
