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<ul><li>The <keyword id="7914197" type="UNKNOWN" weightage="20" keywordseo="Akshar-Forum-School-in-Guwahati">Akshar Forum School in Guwahati</keyword> is giving admission on a condition that the students will have to collect and submit 200 plastic waste items every month.</li><li>Guwahati in Assam produces nearly 3,700 kg of plastic garbage on a daily basis.</li><li>The school students recycle waste products to form ecological bricks.</li></ul> The Akshar Forum School in Guwahati is giving admission on a condition that the students will have to collect and submit <a href="https://timesofindia.indiatimes.com/india/bring-plastic-study-in-this-assam-school-for-free/articleshow/70387895.cms">200 plastic waste items every month</a>. "In order to stop the widespread burning of plastic in these villages, we decide to educate the community on the health hazards of burning plastic,” Parmita Sarma, founder of the school and a social worker at Tata Institute of Social Sciences told The Times of India. Guwahati in Assam produces nearly <a href="https://www.sentinelassam.com/top-headlines/plastic-ban-turns-into-a-farce-in-assam/">3,700 kg of plastic garbage</a> on a daily basis. And this certainly calls for the need to aware people on the impacts of using plastic. Established in 2016 by a couple — Mazin Mukhtar and Parmita Sarma — the school aims to recycle the waste plastic products and use it to develop their building. In fact, the school has its own recycling unit and students process the waste items to produce environment-friendly ecological bricks. Akshar Forum School has nearly 110 students, all from the nearby slums. The government too intends to spread awareness against plastic from schools. “Banning bottles, wrappers, packaging, bags, cups, plates, tumblers made of plastic or polystyrene on school premises and in school canteen, and encouraging the use of alternative biodegradable products will help sensitize students about the ills of using plastic,” noted a Central Board of Secondary Education <a href="https://www.sentinelassam.com/top-headlines/plastic-ban-turns-into-a-farce-in-assam/">(CBSE) circular</a> from 2018. See also: <a href="https://www.businessinsider.in/amazon-alexa-is-being-used-in-maharashtra-schools-for-teaching-assistance/articleshow/70156968.cms">Good Morning Alexa: Students of Maharashtra village are taught by Amazon's virtual assistant</a> <a href="https://www.businessinsider.in/rajmal-meena-jnu-guard-help-from-neo-stencil-to-become-ias/articleshow/70275974.cms">Meet Rajmal Meena, a security guard from JNU who cleared university’s entrance examination, and is now aiming to become an IAS officer</a> <a href="https://www.businessinsider.in/ias-officers-helping-at-government-schools-as-part-time-teachers-in-india/articleshow/70161000.cms">This Indian state’s IAS officers have turned part-time government school teachers to improve the quality of education</a>

Plastic waste as school fees: A school in Assam adopts a novel idea

Researchers at the <keyword id="55119" type="General" weightage="50" keywordseo="indian-institute-of-technology" source="Orion">Indian Institute of Technology</keyword> (<keyword id="6354859" type="General" weightage="80" keywordseo="iit" source="Orion">IIT</keyword>) <keyword id="35727" type="General" weightage="50" keywordseo="guwahati" source="Orion">Guwahati</keyword> have designed an affordable and efficient 'passive' radiative cooling system that does not require electricity to operate and can provide an alternative to the conventional air-conditioners, the institute said on Monday. This 'Radiative Cooler' coating material is an electricity-free cooling system as it can be applied on rooftops and functions both during day and night. Passive radiative cooling systems operate by emitting the heat absorbed from the surrounding in the form of infrared radiations that can pass through the atmosphere before getting dumped into the cold outer space. "These radiative coolers requiring no external energy sources for their operation could be one of the best alternatives to replace the conventional air conditioning systems used to cool buildings and automobiles in countries experiencing hot weather, such as India," said Prof. <keyword id="14360330" type="General" weightage="50" keywordseo="debabrata-sikdar" source="Orion">Debabrata Sikdar</keyword>, Assistant Professor at Department of Electronics and Electrical Engineering, <keyword id="186684" type="General" weightage="100" keywordseo="iit-guwahati" source="Orion">IIT Guwahati</keyword>, in a statement. "Unlike traditional cooling technologies that dump the waste heat into the surroundings, radiative cooling is a unique process that cools an object on the earth by sending excessive heat directly into the extremely cold universe," he added. However, most passive radiative coolers operate only at night. For daytime operation, these coolers need to reflect entire solar radiation as well. Till now, these cooling systems are not able to provide sufficient cooling at daytime. "For a radiative cooler to work during daytime, the material should reflect the solar and atmospheric radiations falling on it. Since the materials used in conventional coolers absorb more solar radiations and emit less during the day, those do not work during daytime. While daytime cooling can be achieved using polymer-based passive radiative coolers, oxidation degrades the polymers resulting in a limited lifespan," explained Ashish Kumar Chowdhary, a research scholar at IIT Guwahati. To address this, the team considered using thin films of silicon dioxide and aluminium nitride. These materials have low optical density corresponding to the wavelength range of solar and atmospheric radiations. But at atmospheric transmittance wavelengths, they have high optical density. When optical density is high, radiations travel slower through a medium and get absorbed more. To remain at thermal equilibrium, the material emits all the absorbed radiation like a black body. Instead of a single layer, the team cascaded silicon dioxide and aluminium nitride thin film layers on a silver layer, used as a ground metal, placed over a silicon substrate. The cooler they designed achieved about 97 per cent reflectance for solar and atmospheric radiations and 80 per cent emissivity for radiations in atmospheric transmittance wavelengths. The net cooling power is estimated to be 115 watt per square metre which could reduce ambient temperature up to 15 degrees below the outside temperature. Their innovation has been recently covered in the Current Science Report, which was initially published in <keyword id="13574934" type="General" weightage="50" keywordseo="journal-of-physics" source="Orion">Journal of Physics</keyword> D: Applied Physics. Compared to a recent cooler design achieving a comparable reduction in ambient temperature, this cooler is found to provide around 1.6 times more cooling power, the team said, adding this will reach the market once the large-scale prototypes are developed and tested for operational stability and durability under different climatic conditions. SEE ALSO: <a target="_blank" class="c-link c-message_attachment__title_link" href="https://www.businessinsider.in/politics/news/who-will-get-the-party-symbol-bow-and-arrow-if-shiv-sena-splits/articleshow/92611630.cms">It’s not the CM seat but the one who wields ‘bow and arrow’ will be the Sena head</a> <a target="_blank" class="c-link c-message_attachment__title_link" href="https://www.businessinsider.in/sustainability/news/ban-on-single-use-plastic-kicks-in-across-india-as-the-country-recognises-the-choking-impacts-of-plastic-waste-on-the-environment/articleshow/92600992.cms">Ban on single-use plastic kicks in across India as the country recognises the choking impacts of plastic waste on the environment</a>

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Plastic waste as school fees: A school in Assam adopts a novel idea

Prerna Sindwani

IIT Guwahati designs a cooling system that will not require electricity

IANS

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