Previous Experience/Positions held

• Assistant Professor, Government Engineering College, Barton hill, Trivandrum
• Assistant Professor, Government Engineering College, Thrissur
• Assistant Engineer, Public Works Dept., Office of CE (NH), Trivandrum
• Junior Engineer, Central Public Works Dept., Mumbai Central Circle I, Mumbai
• Junior Project Fellow, National Institute of Interdisciplinary Science &Technology (CSIR-NIIST), Trivandrum
• Testing Engineer, M 2 Software Developments & Exports (P) Ltd., Trivandrum

Areas of Interest:

• Environmental Engineering
• Geo-environmental Engineering

Courses Handled

• Environmental Engineering I
• Building Services (Plumbing and Sanitation)
• Solid and Hazardous Waste Management
• Global Warming, Climate Change and Green Technology
• Mitigation and Adaptation Strategies in Climate Change
• Industrial Wastewater Management
• Waste Management
• Climate Change and Sustainability
• Ecological Engineering

Publications:

Journals

1. Sumi S & Unnikrishnan (2025), "Natural fibres as sustainable engineering materials: scope, challenges, and prospects", Indian Journal of Fibre & Textile Research, September 2025 (accepted)
2. Anjali , S.H., Sumi S. (2025). "Development of seaweed based bio-composite gel for dye removal", The I ndian Journal of Technical Education (ISTE ISSN 0971-3034), Vol. 48, Special Issue No. 1, pp 191-195
3. Athira, T. M., & Su mi, S. (2024). Agro-based Adsorbents for Dye Removal from Aqueous Solutions: A Review. Water, Air, & Soil Pollution, 235(2), pp 1-16.
4. Sumi, S. W., Unnikrishnan, N. N and Lea Mathew (2021). "The Effect of Surface Modified Coir Geotextiles on Environmental Resources" . Journal of Natural Fibers (Taylor and Francis, ISSN: 1544-0478) https://doi.org/10.1080/15440478.2021.1875363
5. Sumi, S., Unnikrishnan, N. and Lea Mathew (2018). Durability studies of surface-modified coir geotextiles. Geotextiles and Geomembranes (Elsevier - ISSN: 0266-1144), 46(6), pp 699 - 706.
6. Sumi, S., Unnikrishnan, N. and Lea Mathew (2017). Surface modification of coir fibers for extended hydrophobicity and antimicrobial property for possible geotextile application. Journal of Natural Fibers (Taylor and Francis, ISSN: 1544-0478), 14(3), pp. 335-345.
7. Sumi, S., Unnikrishnan, N. and Lea Mathew (2016). Experimental investigations on biological resistance of surface modified coir geotextiles, International Journal of Geosynthetics and Ground Engineering (Springer - ISSN: 2199-9260), Published online - 19 October 2016), pp 2:31.
8. Sumi, S., Unnikrishnan, N. and Lea Mathew (2016). Effect of antimicrobial agents on modification of coir. Procedia Technology (Elsevier - ISSN: 1877-7058), 24, pp. 280 - 286.

Conference Papers

1. Sona Rachel Thomas and Sumi S, "A Review on the Fundamentals of Biocementation Technique and Challenges in Upscaling to Field Applications", Sixth National Conference on Soils and Foundations (SAF - 2024) 15th to 17th February 2024
2. Deepa Irene C and Sumi S, "A Comprehensive Review on Prevalence of Microplastics in
3. Indian Soils", 2 nd International Conference on Recent Advancements in Engineering & Technology (ICORETech 2024), 7-9 th February 2024
4. S.H. Anjali, Sumi, "Development of sodium alginate-egg shell for biocomposite removal", International Conference - Recent Advances in Sustainable Environment (RAiSE 2023) May 15 - 16, 2023
5. Niha Rahman and Dr. Sumi S, "A review on Loss and Damage on Agriculture due to Climate Change: Mitigation & Adaptation" Chapter in a book: Mitigation & Adaptation Climate Change and Sustainable Development -, Barter Publishing- ISBN 978-81-959280-7-1
6. Akshay Ranjith, Sumi S," Seabed mapping using multi-beam echosounder and real-time kinematic system" International Conference on Recent Advances in Civil Engineering - ICRACE2022, 01-03 Dec 2022
7. Akshay Ranjith, Alisha P. M., Binsy P. T., Catherine Chakkalakkal, Sumi S, "Performance assessment of constructed wetland in treatment of wastewater", International Conference on Recent Advances in Civil Engineering - ICRACE2022, 01-03 Dec 2022
8. Murshida T and Sumi S, "Investigations On Turbidity Removal Using Natural Coagulants" 2 nd GEAST Global Conference on Energy, Environment & Climate Change (EECC-2022) 10th Sept' 2022
9. Reshma Rajendran and Sumi S, "Investigation on the Performance of Sponge Reactor at Varying Organic Loads", 2 nd GEAST Global Conference on Energy, Environment & Climate Change (EECC-2022) 10th Sept' 2022
10. Arya Prasannan and Sumi S, "Assessment of Carbon Stock of College of Engineering Trivandrum Campus", 2 nd GEAST Global Conference on Energy, Environment & Climate Change (EECC-2022) 10th Sept' 2022
11. Arya Prasannan and Sumi S, "Design of rooftop rainwater harvesting system and grey water treatment system for CET campus, Trivandrum", National Conference on Innovations in Civil Engineering Practices 2022 (NCICEP2022) 6- 7 Jul 2022
12. Aswathi PM & Sumi S, "Antibiotic resistant bacteria removal methods - State of art", National Conference on Innovations in Civil Engineering Practices 2022 (NCICEP2022) 6- 7 Jul 2022
13. Athira T.M. & Sumi S, "Chicken Feathers as Biosorbent for Dye Removal: Kinetic and Isotherm Studies", International Conference on Systems, Energy and Environment (ICSEE2022) 5 - 6 Aug 2022
14. Sumi, S. and Unnikrishnan, N. (2019) "Pullout behaviour of surface-modified coir geotextiles", Coir Kerala 2019, Alleppey, Dec 5 2019
15. Athira P. S, Lea Mathew and Sumi S. (2019). "Coconut husk as a suitable adsorbent for dye removal", Coir Kerala 2019, Alleppey, Dec 5 2019
16. Shilpa Vijay, Lalnunmawia, Timothy Lallawmzuala, Lea Mathew, Sumi S. and Akshay Ranjith (2019). "Study on the effect of coir retting on water bodies", Coir Kerala 2019 Alleppey, Dec 5 2019
17. Sujith, V.K., Sumi, S. and Swarnalatha, K. (2017). Development of clay-glass-sand blended Lightweight Aggregate using sewage sludge as filler. International Conference on Materials, Mechanics and Management, July 2017 at College of Engineering Trivandrum, Thiruvananthapuram.
18. Sumi, S. and N. Unnikrishnan (2016). Biological degradation of natural fibres and common modification techniques with special emphasis to natural geotextiles - State of art. National Conference on Geotechnical Engineering and Modelling - GEM 2016, at LBS Institute of Technology for Women, Thiruvananthapuram from 17-18 June 2016.
19. Sumi S., Unnikrishnan, N. and Lea Mathew (2015). Effect of anti-microbial agents on modification of coir. International Conference on Emerging Trends in Engineering, Science and Technology (ICETEST - 2015) at GEC Thrissur, from 9-11 December 2015.
20. Sumi, S, N. Unnikrishnan (2014). Natural fibres in engineering - An overview. International Conference on Materials, Mechanics and Management (IMMM) at College of Engineering Trivandrum, Thiruvananthapuram from 17-19 December 2014.
21. Sumi, S. and Lea Mathew (2010). Performance of an anaerobic hybrid system with polyurethane filter media. Kerala Science Congress, January 2010 at Kerala Forest Research Institute, Peechi, Thrissur.
22. Sumi, S. and Lea Mathew (2010). Polyurethane foam as filter media in upflow anaerobic hybrid reactors. Kerala Environment Congress, June 2010 at Centre for Environment Studies, Trivandrum.
23. Lea Mathew and Sumi S (2010). Biological treatment of wastewater in an upflow anaerobic hybrid reactor using polyurethane foam as filter media. International Conference on Materials, Mechanics and Management, January 2010 at College of Engineering Trivandrum, Thiruvananthapuram.
24. Sumi, S. and Lea Mathew (2009). Influence of media packing depth and HRT on performance of anaerobic hybrid reactors. National Conference on Technological Trends, November 2009 at College of Engineering Trivandrum, Thiruvananthapuram.

Other Responsibilities held:

Other Academic Activities

Faculty Development Programmes coordinated:

• FDP on "Sustainable Development Goals - The way ahead" sponsored by DTE from 8.1.2024 to 13.1.2024
• FDP on "Recent advancements in Waste to energy Technologies" sponsored by DTE from 9.1.2023 to 14.01.2023
• FSDTP on "Climate change challenges - Mitigation and Adaptation" at College of Engineering Trivandrum, sponsored by DTE from 15 th March 2021 to 20 th March 2021
• FSDTP on 'Environmental challenges and engineering solutions' at College of Engineering Trivandrum, sponsored by DTE during 9 th December 2019 - 14 th December 2019
• STTP on 'Innovative Techniques and Practices in Building Technology' at Govt. Engineering College, Bartonhill, Trivandrum during 12 th April 2013 to 17 th April 2013

Expert talks delivered

• "Urban Heat Islands - Challenges and Sustainable Solutions, Wednesday talk series open to public. organized by Institution of Engineers (India) on 17/7/2024
• "How sustainable are we? Virtual hands-on workshop" for FDP on Sustainable Development Goals - The Way Ahead on 13/1/2024
• "Montreal Protocol: fixing the ozone layer and reducing climate change" for Ozone Day 2023 organised by Kerala State Pollution Control Board on 16th Sept 2023
• "Tackling climate change - The Engineering perspective" for students of Department of Civil Engineering, LBS Kasargod on 27-5-2023
• "Mitigation & Adaptation Strategies in Climate Change - The Role of Engineers" organised by Mangalam College of Engineering 16 th December 2022
• "Research perspectives in climate change", 5-day training programme on climate change at SCMS School of Engineering and Technology 1pm - 3 pm on 14/3/2022
• "Research avenues in climate chage studies", Visiting Faculty Programme under TEQIP for M Tech CE students, GEC Thrissur on 02/12/2021
• "Role of Engineers in the changing climate" for FDP on- Faculty Development Training Sessions for Civil Engineers at GEC Kannur on 8/10/2021
• Technical session on Ozone day, Kerala State Pollution Control Board on 16/9/2021
• "Durability of Surface-Modified Coir Geotextiles for webinar series"-2021-2022: RENDEZVOUS  3 on 6th Sept 2021 for IGS Kochi chapter
• "Global Warming - Challenges & Sustainable Solutions", Outreach programme organized by the Department of Civil Engineering, St. Thomas Institute for Science And Technology, Trivandrum 28 th Aug 2021
• Expert talk on World Environment Day 5th June, 2021 NSS Unit EKM Polytechnic, Trikkarippur
• "Climate change research - The way ahead" for FDP on Climate Change Challenges - Mitigation and Adaptation on 20-03-2021
• "Understanding the Draft EIA 2020", FACT series by Bhoomitrasena CET 05/07/2020
• "Solid Waste Management (ES204 - B Arch) Module 5", Webinar under the Government of Kerala Initiative by ASAP during COVID period (19/5/2020) https://www.youtube.com/watch?v=mRMV0YmdOmI
• "Tackling Climate change - Not rocket science' for FSDTP on 'Environmental challenges and engineering solutions' at College of Engineering Trivandrum, sponsored by DTE during 9th December 2019 - 14th December 2019
• "Coir - A sustainable engineering material" for short-term training programme on Sustainable Construction Materials held at CET from16.07.2018 to 20.07.2018
• Programme content writer for the environment - based series, HARITHA JEEVANAM by All India Radio on the following topics:
  • Introduction on Green buildings on 18th Feb 2021
  • Green buildings and Water conservation on 18th Mar 2021
  • Green buildings and Energy conservation on 15th Apr 2021
  • Introduction to Climate change on 17th Jun 2021
  • Climate change and Oceans on 15th Jul 2021
  • Climate change and Health on 19th Aug 2021
  • Climate change and Forests on 16th Sept 2021
  • Climate change and Biodiversity on 21st Oct 2021
  • Climate change and Water resources on 18th Oct 2021