With a campus that accommodates over 16,000 students, one can only imagine the sheer magnitude of the waste generated by the college each day. But the truth is that NO waste actually goes out of Christ University. All waste generated is recycled and reused within the campus itself. There are 5 efficiently run units that make this possible: waste segregation, water treatment, composting, biogas methanation and a paper recycling unit, covering every possible waste produced on campus.
1. Using recycled waste water for gardening and composting
Water treatment plant
All the waste water from sinks and toilets collects at a 24 hour running water treatment plant. Approximately 4, 00,000 litres of water is collected everyday. The water undergoes aeration and aerobic bacteria treatment which breaks down the waste chemically. The waste from here moves out as sludge and is dried in “the sludge drying bed” to be used as compost. The clear water then moves into the Pressure Sand Filters and Activated Carbon Filters. The water that emerges out of these filters is then collected in a huge well-lake from which water is pumped out to the gardening pipes of the campus. The recycled water is eventually used for the vast gardens of the campus.
2. Segregating its waste
All around the campus their is ample distribution of dry and wet waste dustbins. Segregation of waste takes place again at the recycling and composting units.
3. Converting food waste into cooking gas and creating employment
This plant aims to convert kitchen waste to cooking gas through the “water jacket floating gas holder type” model. The plant employs slum women and the gas generated is sent to the homes of these women. Each day, 2-5 kg of solid kitchen waste is fed to the plant along with 20 litres of organic waste water. The cooking gas yielded is sufficient for a family of 3-5 members. The energy yield is equivalent to 500g of LPG.
This is a bigger methanation plant. It is of “floating dome gas collector” model. This also converts food waste to biogas. 500 kg of food waste is added to produce an energy equivalent to 25 kg of LPG. It consumes around 150 litres of water a day and the gas thus produced is used in all the homes of the dharmaram.
4. Composting organic waste to get rich fertilizers
Dry leaves and food waste are added in equal ratio in each chamber of the plant. A spoon of bio inoculam is added in a bucket of water and sprinkled on the compost. The contents are mixed thrice a week and is circulated with the help of a blower. In 6 weeks, proper compost forms that gets stored in gunny bags and can be sold.
5. Recycling answer scripts to create books for the poor
Paper recycling unit: Parivarthana
Parivarthana is the paper recycling unit of the campus. It receives answer scripts, newspapers and cotton buds to recycle. Just the answer scripts account for 5 tonnes of waste every year. The recycled paper is used to create colourful handmade chart papers, greeting cards, photo frames, folders, bags and notebooks. The recycled paper and notebooks generated are distributed to the school children of LR Nagar and Ambedkarnagar slums. The employees of Parivarthana who create these products are women from the slums as well.
Read more about Christ University’s Eco-friendly campus initiatives here.