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Govindarajan, VenkateshORCID iD iconorcid.org/0000-0003-3347-7262
Publications (10 of 115) Show all publications
Jaya, S. T., Frodeson, S., Mohammadi, A. & Govindarajan, V. (2024). Thermal Pretreatment Technologies for Moisture Removal and Upgrading the Biomass Quality. In: Virendra Bisaria (Ed.), Handbook of Biorefinery Research and Technology: (pp. 1-41). Springer
Open this publication in new window or tab >>Thermal Pretreatment Technologies for Moisture Removal and Upgrading the Biomass Quality
2024 (English)In: Handbook of Biorefinery Research and Technology / [ed] Virendra Bisaria, Springer, 2024, p. 1-41Chapter in book (Refereed)
Abstract [en]

The supply-chain logistics – storage and transportation over long distances – and downstream processes in biofuel production are adversely impacted by the moisture content in the biomass feedstock. Most woody, herbaceous, low-cost biomass resources such as municipal organic solid wastes and forest residues have moisture content over 30% (of the wet-biomass mass). This makes them less amenable to thermochemical biomass-to-biofuel conversion technologies like pyrolysis and gasification. If pyrolyzed or gasified, the resulting biofuels have a higher moisture content, which truncates their calorific values. During storage, there is a loss of dry matter owing to a tendency to compost aerobically/anaerobically, which is detrimental to the quality of the biomass as a potential source of biofuel. Beyond that, fire hazards due to the spontaneous combustion of wet biomass are not uncommon, necessitating storage in a dry condition. However, drying high-moisture biomass is energy-intensive. The quality of the product and the efficiency of drying are affected by particle sizes and drying technologies adopted. Within this chapter, the authors focus on managing and controlling the moisture content of the biomass utilized in the biofuels sector by resorting to drying and torrefaction technologies. The chapter dwells on drying principles, models and media in drying systems, types of drying systems, mechanical dewatering and torrefaction, the impact of drying, dewatering, and torrefaction on the physical and chemical properties of the end-product, and techno-economic analysis of torrefaction.

Place, publisher, year, edition, pages
Springer, 2024
Keywords
Biomass, Chemical composition, Drying, Drying techniques, Torrefaction, Moisture content, Techno-economic analysis
National Category
Other Environmental Engineering Renewable Bioenergy Research
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-98625 (URN)10.1007/978-94-007-6724-9_49-1 (DOI)978-94-007-6724-9 (ISBN)978-94-007-6724-9 (ISBN)
Available from: 2024-02-20 Created: 2024-02-20 Last updated: 2024-02-20Bibliographically approved
Govindarajan, V. (2024). We Need Them. They Will Do Much Better Without Us.: A Review of Survival at Stake, by Poorva Joshipura.. Studia Ecologiae et Bioethicae, 22(2)
Open this publication in new window or tab >>We Need Them. They Will Do Much Better Without Us.: A Review of Survival at Stake, by Poorva Joshipura.
2024 (English)In: Studia Ecologiae et Bioethicae, ISSN 1733-1218, E-ISSN 2719-826X, Vol. 22, no 2Article in journal (Other (popular science, discussion, etc.)) Published
Abstract [en]

‘Zoo-ethics’is a subset of bioethics,and zoology may be looked upon as a subset of ecology...that is how the review of Survival at Stake, by Poorva Joshipura, falls well and truly within the scope of this journal.There is also an interesting link between this one and another review of a book steeped in science, published recently by this author. Survival at Stake, on the other hand, primarily, has a moral, ethical, and practical force embedded within the scientific. This is understandable when one notes that Joshipura is an animal welfare activist associated with the NGO, People for the Ethical Treatment of Animals (PETA), and committed to the cause espoused by it.

Place, publisher, year, edition, pages
Warsaw, Poland: Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie, 2024
Keywords
Anthropocentrism, Bio-ethics, Animal ethics, Environmental ethics, Zoonotic diseases
National Category
Ethics Medical Ethics Philosophy
Research subject
Environmental Science
Identifiers
urn:nbn:se:kau:diva-98144 (URN)10.21697/seb.5803 (DOI)
Available from: 2024-01-23 Created: 2024-01-23 Last updated: 2024-01-24Bibliographically approved
Govindarajan, V. (2023). A small and beautiful example of sustainability in the heart of Zimbabwe. Studia Ecologiae et Bioethicae, 21(2), 35-42
Open this publication in new window or tab >>A small and beautiful example of sustainability in the heart of Zimbabwe
2023 (English)In: Studia Ecologiae et Bioethicae, ISSN 1733-1218, E-ISSN 2719-826X, Vol. 21, no 2, p. 35-42Article in journal (Refereed) Published
Abstract [en]

Zimbabwe has diligently started pursuing the Sustainable Development Goals (SDGs) defined by the United Nations in 2015. While making progress and being aware of it, will be a shot in the arm, with success breeding more success, the journey may seem daunting at times. However, the journey –sustainable development towards the targets set -is what matters morethan the final destination, as philosophers and savants often remind us. This article, while dwelling on sustainable development in this southern-African landlocked country in general, presents a beautiful example of a collaborative venture, undertaken by dedicated and determined international partners, and predicated on SDG#4 (Quality Education) and SDG#5 (Gender Equality), and harnessing the complementarities and synergies with the other SDGs, which set root during the COVID-pandemic, in Mwenezi in southern Zimbabwe. The pandemic while being a scourge, tended to have some silver linings to it, as it gave birth to many collaborationsand made human beings realise that one’s own happiness is dependent to a very great extent on that of others. This venture emphasizes girls’ educationand skills-development, which open the doors, synergistically, to sustained growth, development and progress. Education, indisputably, is a key component of the freedom necessary to live a life of value. To quote Nelson Mandela, ‘It is the most powerful weapon which you can use to change the world.

Place, publisher, year, edition, pages
Warsaw, Poland: Uniwersytet Kardynała Stefana Wyszyńskiego, 2023
Keywords
Social work, sustainability, educational work, education, health, renewable energy, sustainability, Sustainable Development Goals, SDGs, Zimbabwe
National Category
Philosophy, Ethics and Religion Environmental Sciences
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-92565 (URN)10.21697/seb.2023.01 (DOI)2-s2.0-85159444392 (Scopus ID)
Available from: 2022-11-29 Created: 2022-11-29 Last updated: 2023-05-29Bibliographically approved
Govindarajan, V. (2023). Brief commentary: Varshita Venkatesh Written-Word Workshop: A ‘no-income-to-entrepreneur’ sustainable social entrepreneurship philanthropy construct. Sustainable Social Development, 1(1), Article ID 2203.
Open this publication in new window or tab >>Brief commentary: Varshita Venkatesh Written-Word Workshop: A ‘no-income-to-entrepreneur’ sustainable social entrepreneurship philanthropy construct
2023 (English)In: Sustainable Social Development, E-ISSN 2972-4880, Vol. 1, no 1, article id 2203Article in journal (Refereed) Published
Abstract [en]

The Varshita Venkatesh Written-Word Workshop set up by the author in honour and memory of his wife Varshita,who ascended to her heavenly home in January 2020, can be labelled as a ‘no-income-to-entrepreneur’ socialentrepreneurship construct which knits together a swathe of different stakeholders to the ‘Varshita Venkatesh family ofcharitable funds’, so to say, and uncovers and creates value of different types—economic, social, spiritual, psychologicaland moral. It has a long way to go, in this ‘value-creating’ journey and contribute to sustainable development in its ownhumble way

Place, publisher, year, edition, pages
Singapore: Asia-Pacific Academy of Sciences Pte Limited, 2023
Keywords
Entrepreneurship, Philanthropy, Social welfare, Shared Value
National Category
Other Social Sciences
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-96610 (URN)10.54517/ssd.v1i1.2203 (DOI)
Available from: 2023-09-05 Created: 2023-09-05 Last updated: 2023-12-13Bibliographically approved
Govindarajan, V. (2023). Communicate and Inspire: Review of TALK LIKE TED, by Carmine Gallo [Review]. Bhavan's Journal, 73-76
Open this publication in new window or tab >>Communicate and Inspire: Review of TALK LIKE TED, by Carmine Gallo
2023 (English)In: Bhavan's Journal, ISSN 2457-1032, p. 73-76Article, book review (Other (popular science, discussion, etc.)) Published
Abstract [en]

Carmine Gallo packs a punch and makes this book as novel and memorable as a top-class TED talk.

Place, publisher, year, edition, pages
Mumbai, India: , 2023
Keywords
Communication, Ethos, Pathos, Logos, Ted talks
National Category
Communication Studies
Research subject
Media and Communication Studies
Identifiers
urn:nbn:se:kau:diva-94305 (URN)
Available from: 2023-04-17 Created: 2023-04-17 Last updated: 2023-05-04Bibliographically approved
Zetterlund, S., Schwartz, O., Sandberg, M. & Govindarajan, V. (2023). Computation modelling to advise and inform optimization for aeration and nutrient-dosing in wastewater treatment: Case study from pulp and paper mill in south-central sweden. Journal of Water Process Engineering, 56, Article ID 104508.
Open this publication in new window or tab >>Computation modelling to advise and inform optimization for aeration and nutrient-dosing in wastewater treatment: Case study from pulp and paper mill in south-central sweden
2023 (English)In: Journal of Water Process Engineering, E-ISSN 2214-7144, Vol. 56, article id 104508Article in journal (Refereed) Published
Abstract [en]

Sweden’s pulp and paper sector accounts for a significant proportion of national energy usage, and generates wastewater that causes eutrophication of nearby sinks. In this paper, the possibility of optimizing a biological purification process at the Stora Enso Skoghall mill south of the city of Karlstad in central Sweden, with respect to electricity usage and the addition of nutrients, has been investigated. A computational model of the treatment process was developed, based on process data obtained from the mill, and nine different scenarios compared subsequently, with energy use, environmental impacts and operational expenses, as criteria. These nine scenarios were compared with the reference case, which is the status quo of the biological treatment at the mill. The results depicted that the most energy-efficient and cost-effective alternative was a combination of measures such as lowering the oxygen level in the MBBR from 3 mg l-1 to 2 mg l-1 and using Hyperclassic in the aerated lagoon; an arrangement that yielded a 48.5% reduction in operational expenses, and a 60% decrease in the energy use, vis-à-vis the reference case, without affecting the efficiency of the purification process. This also uncovered an opportunity to mitigate the global warming impact and the eutrophication potential, by approximately 100 tons of CO2-eq. year-1 and 140 kg PO43--eq. year-1. All attempts to optimize the use of resources and decrease the anthropogenic environmental footprint ought to be made to come closer to the targets set by the United Nations’ sustainable development goals (SDGs). The authors’ conclusion predicated on the results of the modelling and analysis done in this study is that the potential of seemingly small process modifications, such as lowering the oxygen level in the MBBR, and applying a more optimal dosage of nutrient salts, must not be overlooked.

 

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Aeration, biological wastewater treatment, energy use optimization, nutrients, pulp and paper mills
National Category
Water Treatment
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-97233 (URN)10.1016/j.jwpe.2023.104508 (DOI)2-s2.0-85176258724 (Scopus ID)
Available from: 2023-10-30 Created: 2023-10-30 Last updated: 2023-11-29Bibliographically approved
Govindarajan, V. (2023). Eight years to Go, to Meet the SDG Targets: Waste Management as Enabler and Enabled. In: Rahul Bhadouria; Sachchidanand Tripathi; Pardeep Singh; P K Joshi; Rishikesh Singh (Ed.), Urban Metabolism and Climate Change: Perspective for Sustainable Cities (pp. 223-245). Springer Nature
Open this publication in new window or tab >>Eight years to Go, to Meet the SDG Targets: Waste Management as Enabler and Enabled
2023 (English)In: Urban Metabolism and Climate Change: Perspective for Sustainable Cities / [ed] Rahul Bhadouria; Sachchidanand Tripathi; Pardeep Singh; P K Joshi; Rishikesh Singh, Springer Nature, 2023, p. 223-245Chapter in book (Refereed)
Abstract [en]

Waste management has evolved from the earlier five-step hierarchy to include many more R’s—reclaim, repurpose, remediate, renovate, replenish, revere nature, being a few of them. It can play a key role in the alleviation of, and the simultaneous adaptation to the repercussions of climate change. Waste valorisation, which is gradually entrenching itself, in both principle and practice, can go a long way in directly and indirectly enabling humankind to get closer to several sustainable development goals (SDGs) targets and perhaps overachieve in some respects. Value creation by adopting the R’s wherever, however, whenever and by whosoever possible, is a sine qua non for achieving the SDGs by year-2030 and continuing in the same vein thereafter, when the world will have to grapple more perceptibly with the repercussions of climate change. It is clear that we cannot avert climate change now. We can, at best, alleviate the intensity of its repercussions, though unfortunately not uniformly all over the world. This chapter posits waste management (urban and otherwise) in the scheme of things related to the sustainable development goals (SDGs), as both enablers and enabled. The exposition introduces readers to the multi-dimensionality of sustainable development, and thereby efficient, value-generating waste management in a circular economy/bio-economy.

Place, publisher, year, edition, pages
Springer Nature, 2023
Keywords
Circular bio-economy, Climate change, Recover, Recycle, Reduce, Remediate, Reuse, Sustainable development goals (SDGs), Urban metabolism, Valorisation, Waste management, Wastes
National Category
Environmental Engineering
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-93921 (URN)10.1007/978-3-031-29422-8_12 (DOI)2-s2.0-85172135329 (Scopus ID)978-3-031-29421-1 (ISBN)978-3-031-29424-2 (ISBN)978-3-031-29422-8 (ISBN)
Available from: 2023-03-13 Created: 2023-03-13 Last updated: 2023-10-20Bibliographically approved
Govindarajan, V. (2023). Environment, economy and society – the ‘body’, ‘mind’ and ‘soul’ of sustainable design of buildings. Problemy Ekorozwoju, 18(2), 249-253
Open this publication in new window or tab >>Environment, economy and society – the ‘body’, ‘mind’ and ‘soul’ of sustainable design of buildings
2023 (English)In: Problemy Ekorozwoju, ISSN 1895-6912, E-ISSN 2080-1971, Vol. 18, no 2, p. 249-253Article in journal (Other academic) Published
Abstract [en]

The design process in general, and the one for buildings in particular has evolved and become increasingly intricate, with additional layers and factors becoming relevant, as the drive towards sustainability (the Sustainabledevelopment goals defined by the United Nations in 2015) has gathered steam. This short chapter focuses on thediversity of issues which sustainable building design is likely to be influenced by, in the years ahead.

Place, publisher, year, edition, pages
Lublin, Poland: Politechnika Lubelska, 2023
Keywords
design, sustainability, buildings, sustainable design, Life-cycle thinking
National Category
Building Technologies
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-88747 (URN)10.35784/preko.4038 (DOI)001067746400022 ()2-s2.0-85168810633 (Scopus ID)
Available from: 2022-02-24 Created: 2022-02-24 Last updated: 2023-11-02Bibliographically approved
Govindarajan, V. (2023). I see the world through other eyes: Book review of 'An Immense World' by Ed Yong. Science Reporter, 60(8), 49-51
Open this publication in new window or tab >>I see the world through other eyes: Book review of 'An Immense World' by Ed Yong
2023 (English)In: Science Reporter, ISSN 0036-8512, Vol. 60, no 8, p. 49-51Article in journal (Other (popular science, discussion, etc.)) Published
Place, publisher, year, edition, pages
New Delhi, India: NISCPR, Centre for Scientific and Industrial Research., 2023
Keywords
Chemoreceptors, Photoreceptors, Magnetoreceptors, Vibration sensors
National Category
Biological Sciences
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-96163 (URN)
Available from: 2023-07-28 Created: 2023-07-28 Last updated: 2023-08-08Bibliographically approved
Govindarajan, V. (2023). I see the world through other eyes: Review of 'An Immense World' by Ed Yong [Review]. Studia Ecologiae et Bioethicae, 21(5)
Open this publication in new window or tab >>I see the world through other eyes: Review of 'An Immense World' by Ed Yong
2023 (English)In: Studia Ecologiae et Bioethicae, ISSN 1733-1218, E-ISSN 2719-826X, Vol. 21, no 5Article, book review (Other academic) Published
Abstract [en]

One need not be a biologist, zoologist, herpetologist, ichthyologist, entomologist, ornithologist or an academic counterpart of any of these, to be drawn towards crawling, swimming, flying, arboreal and quadruped fellow-inhabitants of Mother Earth. For that matter, you need not even be a poet, painter or writer, looking for your Muse out there in the wilderness. Indeed, An Immense Worldby Ed Yong –a ‘magic-suffused’ 13-chaptered, 450-pager–may appeal a little more to the scientifically-inclined, considering that Yong is essentially a Pulitzer-Prize-winning science writer.The immensity he addresses in this gem of a book makes a reader feel miniscule in the scheme of things on Terra Firma

Place, publisher, year, edition, pages
Poland: Wydawnictwo Naukowe UKSW, 2023
Keywords
Sense organs, Chemoreceptors, Photoreceptors, Mechanoreceptors, Magnetoreceptors
National Category
Biological Sciences
Research subject
Environmental and Energy Systems
Identifiers
urn:nbn:se:kau:diva-95988 (URN)10.21697/seb.2023.18 (DOI)2-s2.0-85183433816 (Scopus ID)
Available from: 2023-07-05 Created: 2023-07-05 Last updated: 2024-02-20Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0003-3347-7262

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