School Of Environment And Earth Sciences

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Author: search.filters.author.Prasad, Shiv

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    Biogas Technology for Improving Livelihoods and Agricultural Sustainability
    (CRC Press, 2022-03-26T00:00:00) Prasad, Shiv; Singh, Anoop; Dhanya, M.S.; Rathore, Dheeraj; Rakshit, Amitava
    Biogas is a significant source of energy worldwide. It is renewable, widely produced from organic waste materials, and can significantly improve agricultural sustainability and livelihood in rural areas. Biogas is also known as gobar gas in India. It can be efficiently used for cooking, lighting, and heating. In India, around 32% of the country's primary energy need, still fulfilled by bio-resources use, and about 70% of people depend on it. In the Indian context, the Ministry of New and Renewable Energy (MNRE) has realized the potential of bio-waste to produce biogas energy and its role in improving livelihoods and agricultural sustainability. The Indian government has initiated several programs to promote effective technology to use various biomass and other bio-waste resources for biogas production and its use in multiple sectors of the economy, including sustainable alternatives toward affordable transportation (SATAT) initiatives. For efficient utilization of biogas, the Indian government plans to provide expedited financial assistance to develop compressed natural biogas (CBG) plants under various priority sectors lending to new projects, especially for micro, small, and medium enterprises. India's biogas-to-electricity project is also implemented to provide electricity in remote areas by reaching off-grid power generation. Worldwide biogas is promoted to improve the green energy mix, decrease imports, and minimize pollution with many other environmental benefits. � 2022 selection and editorial matter, Amitava Rakshit, Somsubhra Chakraborty, Manoj Parihar, Vijay Singh Meena, P.K. Mishra, H.B. Singh; individual chapters, the contributors.
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    Ethanol Production from Sugarcane: An Overview
    (wiley, 2022-01-11T00:00:00) Prasad, Shiv; Gupta, Vikas Chandra; Bhatt, Rajan; Dhanya, M.S.
    Sugarcane is grown in about 26 million ha globally, mostly in tropical to subtropical zones, including the Indian sub-continent. India is a leading producer and consumer of sugar in the world, with annual 25-32 million tons of production and contributes nearly 15-17% of global sugar production. Its cultivation is an excellent sucrose source, commonly referred to as table sugar or granulated sugar. Molasses, a byproduct of sugar processing, are currently being used for bioenergy production, especially ethanol, because of economically viable resource. During extraction of juice from sugarcane, vast amounts of bagasse are also generated and burned in plant boilers, which are uneconomical and sources of air pollutants. Various physical, chemical, biological pretreatment, and enzymatic hydrolysis/saccharification and fermentation are applied to produce ethanol from sugarcane bagasse. Scientists are trying to use this bagasse as an economically viable option to produce ethanol and develop inexpensive technologies that practically apply pretreatment, saccharification, and ethanol fermentation at an industrial scale. In future, utilization of these innovative bioconversion technologies, especially simultaneous saccharification and fermentation (SSF), will give a new alternative bioeconomy. It would also provide sustainable use of sugarcane bagasse to produce bioethanol to manage environmental and socioeconomic issues, including dependence on nonrenewable fossil fuel resources. � The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021.