City NGO devises way to lower carbon emission

ST CORRESPONDENT
Friday, 8 February 2019

Priyadarshini Karve, Director of Samuchit Enviro Tech said this process of creating charcoal dust, also known as ‘biochar’, is another method of decomposition that allows retention of 30 per cent carbon in the waste.

Pune: To help the city get rid of dry leaves, a city-based NGO Samuchit Enviro Tech has come up with an easy method of converting it into charcoal dust.

Priyadarshini Karve, Director of Samuchit Enviro Tech said this process of creating charcoal dust, also known as ‘biochar’, is another method of decomposition that allows retention of 30 per cent carbon in the waste.

Karve explained the method of producing biochar which involves heating the biomass (leaves, organic wastes) to drive out the volatile gases, leaving carbon behind. 

“Care needs to be taken that the hot carbon does not come in contact with oxygen, in the process. It can be carried out in a small household stove. This procedure does not produce any amount of carbon dioxide as ordinary, oxygen-fuelled fire does. Instead, the carbon gets locked up in black chunks of charcoal,” Karve explained.
 
She said, “The renewable charcoal can be used directly as fuel, and also as raw material for other products, such as air freshener which can be used in toilets,bathrooms  or closed rooms to beat the  odour.” 

“According to the Intergovernmental Panel on Climate Change (IPCC) report, the carbon dioxide is increasing extensively that we should not only work on reducing the carbon footprint but soak all the carbon dioxide from the air. Hence, 30 per cent of carbon is permanently removed from the biological carbon cycle resulting in less carbon emissions to the atmosphere,’’ she added.

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