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Solid Waste Management

Get on-the-spot approval for biogas plants, pipe-composts

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The Hindu                   17.04.2013

Get on-the-spot approval for biogas plants, pipe-composts

Rajesh B. Nair

In just about three weeks’ time, councillors and health staff of the city Corporation will fan out to areas under its jurisdiction to explain the need for a decentralised garbage management programme and provide on-the-spot approval for setting up biogas plants and pipe-composts.

The plan is to convene a meeting of the councillors and the health staff of the civic body at the beginning of next week during which they will be briefed about the initiative and of their role in mobilising people for conventions to be held in the Corporation health circles by the end of the month. In the first phase, conventions will be held in 25 health circles.

At the conventions, people will be informed of the two decentralised forms of garbage management, and if there are requests, on-the-spot approval will be given to set up biogas plants and pipe-composts. In the case of pipe-composts, pipes and lids will be given on the spot. Representatives of agencies involved in the setting up of the biogas plants would be present to clear doubts, a Corporation official told The Hindu .

“This is to give momentum to the decentralised garbage management and with the conventions, people need not come to the Corporation office to get approvals. We will also like the people to come together so that biogas plants can be set in public places,” he said.

 

New technology for management of solid waste

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The Hindu                   17.04.2013

New technology for management of solid waste

A compost unit using the microbialisolates developed by KeralaAgricultural University.
A compost unit using the microbialisolates developed by KeralaAgricultural University.

KAU develops microbial cultures for composting.

Scientists at Kerala Agricultural University have developed two microbial cultures that can replace cow dung in aerobic composting for large-scale management of solid waste.

The university’s Department of Agricultural Microbiology developed the microbial isolates including bacteria, fungi and actinomycetes from various sources like soil, degrading plant materials and cow dung.

Demonstration units set up at several apartments in the Thrissur Corporation and the ladies hostel on the main campus of the university have proved the efficacy of the technology.

“This is a response to the growing challenge of solid waste management in Kerala,” says P. Rajendran, Vice Chancellor.

“Urbanisation, changes in lifestyle and food habits and the decrease in availability of land have led to waste accumulation and a change in the composition of garbage. The repercussions of this are serious and unpredictable,” P. Rajendran said.

Dr. Rajenran said the composting method developed by the university would enable efficient conversion of solid waste into organic manure, making it the best option for large-scale composting plants.

Conventional composting employs cow dung as a source of microbial inoculum for degradation of waste. But cow dung has become a rare commodity, especially in urban areas, triggering the search for efficient microbial cultures as an alternative.

The research team carried out studies to evaluate the efficacy of microbes utilising cellulose, lignin, protein and starch degradation. Seven efficient isolates selected from the preliminary studies were further screened using vegetable waste.

Two of the isolates, Bacillus subtilis and Bacillus niabensis were found to be effective and completed the degradation of solid biodegradable waste within 17 days.

The technology was validated at the Communication Centre, Mannuthy, with vegetable waste collected from the market. The resultant compost was found to have a fine texture.  When analysed for nutritional quality, it was found to have a pH of 7.4, moisture 25%, Carbon to Nitrogen ratio of 22 and nitrogen 1% – indicating its suitability as organic manure.  

Dr. Rajendran advocates an integrated approach to bio-solid waste management, incorporating different methods to suit local conditions. “For independent households, biogas plants are the best, which generate energy for fuel, apart from giving slurry that can be used as good quality manure. For housing colonies and apartments, aerobic composting will be optimum. The compost from the unit may be used for organic terrace cultivation of vegetables,” he says.

 

PMC to start clearing garbage from today

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The Times of India                 16.04.2013

PMC to start clearing garbage from today

PUNE: The Pune Municipal Corporation (PMC) on Monday said it will start clearing the city's accumulated garbage from Tuesday as the fire at the Phursungi Uruli garbage depot is under control and the villagers have withdrawn their agitation.

"The city generates around 1,400 metric tonnes of waste every day. In the first few days of villagers' agitation, we stocked the city's waste at the garbage ramp in Hadapsar. Since then, we have not been able to clear garbage in the city. Around 2,500 metric tonnes of waste is currently accumulated which we will start clearing from Tuesday," said Suresh Jagtap, head of the PMC's solid waste management department, adding that the city will be waste-free in a day or two.

Residents of the village will allow garbage-carrying vehicles to enter the depot on Tuesday morning. After a fire broke out at the garbage depot on April 7, residents had prevented the civic body's vehicles from entering the area.

Bhagwan Bhadale, president of Kachara Depot Hatav Sangharsh Samiti at Phursungi Uruli, said, "Around 99% of the fire at the depot is under control. Our agitation will come to an end on Tuesday morning. The PMC's vehicles carrying waste can resume their work from 7am onwards."

Municipal commissioner Mahesh Pathak, the officials involved in municipal solid waste management and representatives from Phursungi Uruli attended a meeting under the leadership of MP Supriya Sule at the PMC. The garbage depot falls under Sule's constituency.

"A slew of important decisions have been taken during the meeting. We will inspect how civic authorities translate the decision into reality. If they fail, we will reinitiate our agitation and block vehicles carrying waste to the garbage depot at Phursungi-Uruli," said Dilip Mehta, president of environment conservation committee at Phursungi gram panchayat.

At the meeting, it was decided that only segregated dry waste would be brought to the garbage depot for processing from August 1. "Sule has asked the villagers to take videos of the type of waste being brought to the depot from August 1," Bhadale said.

Relocation of the carcass utilization plant at the Phursungi Uruli garbage depot was also agreed upon. It will be closed from June 1.The civic body has been outsourcing the work to a private firm at the union government-funded plant since its inception in 2002. Animal carcasses are supposed to get scientifically disposed of here.

Closed circuit television (CCTV) cameras will be installed at the garbage processing plant to ensure that the rejected waste is not set on fire in order to get rid of it.

In addition to this, the villagers, who lost 40 acres of land due to fire, would be given financial compensation from the state government. "Sule promised that she would personally look into it and take up the issue with the chief minister," Bhadale said.

Relatives of project-affected villagers will be provided permanent jobs. The civic body has sent a proposal to the state government regarding the same.
Last Updated on Tuesday, 16 April 2013 11:31
 


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