Three “R” Concept in Waste Management for Sustainable Environment

The dawn of the 21st century has thrown several challenges to mankind. The most dangerous among the challenges is the maintenance of a sustainable environment. While anthropogenic activities are considered as the predominant cause for environmental pollution, the solution also lies with human beings only. Here comes the role of the Three “R” concept which has been widely adopted across the globe. The Three “R” concept talks about Reducing the waste, Reusing the waste, and Recycling the waste and products to the extent possible. Today, a developing country like India generates a huge amount of solid waste, sewage, electronic waste, and gaseous pollutants.  When we adopt this Three “R” Concept, the ill effects of the pollution caused by these agents can be effectively mitigated.  Indeed, the various pollution control bodies of the governments are vigorously propagating the Three “R“ concept among the highly polluting industries to bring down the carbon emission to the sustainable level. Indeed, this is one of the United Nations Sustainable Development Goals (UNSDG). This new paradigm will definitely yield the desired result in developing and maintaining a sustainable environment which ensures the availability of pristine natural resources for the generations to come. The Higher Educational Institutions (HEI) play an important role in sustainability promotion in society. Waste management is one of the challenges educational institutions have to face in accomplishing the sustainability goals. KARE adopts the Three “R” Concepts in managing the solid, liquid, biochemical, and e-waste resulting in the development of a sustainable and eco-friendly environment on the campus. This poster details the recycling of solid, liquid, biochemical, and e-waste on Kalasalingam University campus. The solid wastes generated are converted into wealth and reused in the form of Vermicompost which is eco-friendly, the liquid waste is reused after treatment, paper and e-waste are recycled or reused through vendors. Further, the bio-medical/biochemical wastes are disposed of as per the government norms. Keyword: Reduce, Reuse, Recycle, Sustainable Development Goals (SDG), Eco-friendl

Harnessing Renewable Energy at Kalasalingam Academy of Research and Education – A Role Model Case

Global energy demand and environmental concerns are the driving force for the use of alternative sustainable and ecofriendly renewable energy sources. Solar energy is the inexhaustible and CO2 emission free energy source worldwide. It produces significant environmental benefits in comparison to the conventional energy sources, thus contributing to the sustainable development of human activities. It produces clean and renewable power from the sun and benefits the environment without causing air and water pollution. Alternatives to fossil fuels reduce carbon foot print across the globe reducing emission of greenhouse gases and become ecofriendly. Solar power has attracted the largest share of new investments in solar energy across the world. This research article shows light on the solar energy sources developed by Kalasalingam Academy of Research and Education (KARE) for the effective utilization of solar energy in the campus and its impact on the reduction in carbon foot print and also the impact of green vegetation as a source of carbon sink for an ecofriendly campus

Alleviating effect of IAA on salt stressed Phaseolus mungo (L.) with reference to growth and biochemical characteristics

Sodium Chloride (i.e., 25mM, 50mM, 100mM and 200mM) induced salinity effect in black gram caused significant reduction in germination, seedling growth, root and shoot length, fresh weight and leaf area. A reduction in protein content, and nitrate reductase activity was observed in all the concentrations of sodium chloride treated plants. However, the proline level, free amino acid, peroxidase and catalase activities were increased with the increase in the concentration of sodium chloride. Foliar application of 15 ppm IAA to the sodium chloride stressed plants caused an alleviating effect on the salt stressed plants and increased crop yield

THE IPV6 RESISTANCE - A SURVEY

Internet Protocol Version 6 (IPv6) was developed in 1990 to overcome the shortage of IP Version 4 (IPv4) addresses. The world saw IP Version 6 as the next generation IP addressing and an innovative backbone for the Internet. Although more than twenty five years have passed since the development of IPv6, but still IPv6 is seen as new technology without drastic enhancements and has not been widely adopted. Even Information Technology giants fear the network transition to IPv6 backbone. This article analyses the reason for this resistance towards IPv6. A detailed study of the same has been conducted and is discussed in the paper. The discussion includes the myths and facts that has resulted to the IPv6 resistance and outlines the resolutions for IPv6 transitions

Second law analysis of a diesel engine waste heat recovery with a combined sensible and latent heat storage system

The exhaust gas from an internal combustion engine carries away about 30% of the heat of combustion. The energy available in the exit stream of many energy conversion devices goes as waste. The major technical constraint that prevents successful implementation of waste heat recovery is due to intermittent and time mismatched demand for and availability of energy. The present work deals with the use of exergy as an efficient tool to measure the quantity and quality of energy extracted from a diesel engine and stored in a combined sensible and latent heat storage system. This analysis is utilized to identify the sources of losses in useful energy within the components of the system considered, and provides a more realistic and meaningful assessment than the conventional energy analysis. The energy and exergy balance for the overall system is quantified and illustrated using energy and exergy flow diagrams. In order to study the discharge process in a thermal storage system, an illustrative example with two different cases is considered and analyzed, to quantify the destruction of exergy associated with the discharging process. The need for promoting exergy analysis through policy decision in the context of energy and environment crisis is also emphasized.Waste heat recovery Thermal energy storage Phase change material

Experimental investigation on heat recovery from diesel engine exhaust using finned shell and tube heat exchanger and thermal storage system

The exhaust gas from an internal combustion engine carries away about 30% of the heat of combustion. The energy available in the exit stream of many energy conversion devices goes as waste, if not utilized properly. The major technical constraint that prevents successful implementation of waste heat recovery is due to its intermittent and time mismatched demand and availability of energy. In the present work, a shell and finned tube heat exchanger integrated with an IC engine setup to extract heat from the exhaust gas and a thermal energy storage tank used to store the excess energy available is investigated in detail. A combined sensible and latent heat storage system is designed, fabricated and tested for thermal energy storage using cylindrical phase change material (PCM) capsules. The performance of the engine with and without heat exchanger is evaluated. It is found that nearly 10-15% of fuel power is stored as heat in the combined storage system, which is available at reasonably higher temperature for suitable application. The performance parameters pertaining to the heat exchanger and the storage tank such as amount of heat recovered, heat lost, charging rate, charging efficiency and percentage energy saved are evaluated and reported in this paper.Waste heat recovery Thermal storage Latent heat thermal storage Phase change material Heat recovery heat exchanger Diesel engine exhaust