BANGALORE: On an average, the city generates nearly 4,000 metric tonnes of waste every day. How do you segregate waste and recycle it?
The Times of India talks to experts who offer solutions to the BBMP.
* In the quiet villages of rural Karnataka, there’s a revolution under way. Households are segregating source at waste and experts are looking at providing an economical way of generating electricity to light up their streets by using solid waste. “Currently, organic waste is being collected and converted to fertilizers for their crops in a few Dakshina Kannada villages. We’re exploring the possibility of making biofuel from it and at the next level, we’ll look at generating electricity for streetlights,” said Anand Narayan, head of Selco Labs.
Started by Magsaysay Award-winner Harish Hande, Selco primarily works with solar energy applications. It has started exploring the possibility of effective solid waste management in various parts of the state. Beginning with the districts, it plans to implement this solution in urban areas too.
* At the Institute of Wood Science and Technology, Malleswaram, the 25-acre campus is collecting and segregating dry waste (leaves, twigs, flowers). “We segregate it into three piles and add earthworms to them. For about 6 weeks, they’re kept there and it’s then put in the biofuel composting unit to get bio-fuel,” said SC Joshi, director of the institute. They’re looking at lighting up the entire campus and providing biogas to 150 residences there. The institute hopes to raise Rs 3 lakh to set up a biogas plant by the year-end.
A small initiative which took off six months ago at Rajarajeshwari Nagar has become a big movement today. Every Sunday, ITC collects dry waste from the neighbourhood, buys it from them and recycles it. They began with 250 houses, later expanded it to 500 and could soon 1,000. Till date, residents have managed to sell 2.5 tonnes – 3 tonnes of waste and raised Rs 7,500.
At Bhuvaneshwari, 5km from Yelahanka, it covers 2,000 households. Segregation is done at source and residents hand over wet waste to the BBMP van which visits their locality every day. On Sundays, a separate van comes by to collect dry waste which is put in the segregation centre. ITC buys dry waste once every 15 days. “We meet once a month to discuss issues and take a feedback from residents,” said Manoj Desai, member, Bhuvaneshwari Nagara Nagarika Seva Samiti.
Solutions for Bangalore
* Segregate waste at source (800sqft -1,000 sqf) – in many parks in the city. Garden waste (dry waste) can be composted and a shredder can be used to compost neighbourhood dry waste
* Identify 1,000sqft area wardwise to store any waste in the area
* Set up bio-mechanisation plant across 3,000 sqft wardwise to convert wet waste to get biogas and later look at generating electricity
Source: Times of India