All Stories

  1. Comparative evaluation of a hybrid membrane treatment train versus full-scale aerobic/anoxic activated sludge system: C-N removal performances, syntrophic microbial dynamics, and energy savings

    Article • Biochemical Engineering Journal, March 2026, Elsevier

    DR Santhana Krishnan

  2. Influence of hydrothermal pretreatment and hydrochar addition on enhanced anaerobic digestion of various biomass

    Article • Biomass and Bioenergy, January 2026, Elsevier

    DR Santhana Krishnan

  3. Advanced treatment of sugarcane vinasse via hybrid photocatalytic sequencing batch biofilm reactor (HP-SBBR): A combined physicochemical and biological approach

    Article • Bioresource Technology Reports, December 2025, Elsevier

    DR Santhana Krishnan

  4. An extensive analysis and environmental sustainability applications of multifunctional biochar developments: Current trends and technological advances

    Article • Green Technologies and Sustainability, July 2025, Elsevier

    DR Santhana Krishnan

  5. Hydrothermal Carbonization of Digestate from Lignocellulosic Biogas Power Plants for Sustainable Soil Improvement and Low Carbon Emissions

    Article • BioEnergy Research, June 2025, Springer Science + Business Media

    DR Santhana Krishnan

  6. An overview of biomethanation and the use of membrane technologies as a candidate to overcome H2 mass transfer limitations

    Article • Biotechnology Advances, December 2024, Elsevier

    DR Santhana Krishnan

  7. Improving biogas production with application of trimetallic nanoparticle using response surface methods

    Article • Renewable Energy, November 2024, Elsevier

    DR Santhana Krishnan

  8. Elucidating the role of sub-thermophilic temperature and pre-hydrolyzation for effective upgrading scheme of old swine manure digesters

    Article • Bioresource Technology, September 2024, Elsevier

    DR Santhana Krishnan

  9. REMOVAL OF VARIOUS METAL IONS IN WATER BY DIFFERENT PRE-TREATMENTS OF FLY ASH

    Article • PLANNING MALAYSIA, August 2024, Malaysian Institute of Planners

    DR Santhana Krishnan

  10. Editorial: Bioprocess designing towards clean energy production from industrial wastewater

    Article • Frontiers in Chemical Engineering, May 2024, Frontiers

    DR Santhana Krishnan

  11. A comprehensive review of AI-enhanced smart grid integration for hydrogen energy: Advances, challenges, and future prospects

    Article • International Journal of Hydrogen Energy, May 2024, Elsevier

    DR Santhana Krishnan

  12. Mono- and Co- solvency based transesterification of Caryota urens seed oil

    Article • Industrial Crops and Products, March 2024, Elsevier

    DR Santhana Krishnan, Dr. Shiv Prasad

  13. Pristine and modified biochar applications as multifunctional component towards sustainable future: Recent advances and new insights

    Article • The Science of The Total Environment, March 2024, Elsevier

    DR Santhana Krishnan

  14. Characterisation of synthesised trimetallic nanoparticles and its influence on anaerobic digestion of palm oil mill effluent

    Article • Chemosphere, January 2024, Elsevier

    DR Santhana Krishnan

  15. Anaerobes and Waste Conversion Technologies

    Article • January 2024, Springer Science + Business Media

    DR Santhana Krishnan

  16. Enhancement of Methane Production from Food Waste Using Multi-Objective Centralized Control Schemes

    Article • January 2024, Springer Science + Business Media

    DR Santhana Krishnan

  17. Impact of Anaerobic Bioreactors Configurations for Wastewater Treatment

    Article • January 2024, Springer Science + Business Media

    DR Santhana Krishnan

  18. Possibilities of Sustainable Bioenergy Generation from Palm Oil Mill Effluent using Anaerobic Technology

    Article • January 2024, Springer Science + Business Media

    DR Santhana Krishnan

  19. Saccharomyces cerevisiae: A Facultative Anaerobe for Ethanol Fermentation Using Organic Waste

    Article • January 2024, Springer Science + Business Media

    DR Santhana Krishnan

  20. The synthesization of activated carbon from electrocoagulated palm oil mill effluent sludge for wastewater treatment

    Article • Materials Today Proceedings, January 2024, Elsevier

    DR Santhana Krishnan

  21. Comprehensive assessment of biochar integration in agricultural soil conditioning: Advantages, drawbacks, and future prospects

    Article • Physics and Chemistry of the Earth Parts A/B/C, December 2023, Elsevier

    DR Santhana Krishnan

  22. Outline of microbial fuel cells technology and their significant developments, challenges, and prospects of oxygen reduction electrocatalysts

    Article • Frontiers in Chemical Engineering, September 2023, Frontiers

    Professor Maksudur Rahman Khan, DR Santhana Krishnan

  23. Cellulose Nanocrystals from Agro Residues as Reinforcing Agent in Nanocomposites

    Article • August 2023, Taylor & Francis

    DR Santhana Krishnan

  24. Recent advances in process improvement of dark fermentative hydrogen production through metabolic engineering strategies

    Article • Fuel, July 2023, Elsevier

    DR Santhana Krishnan

  25. Integrated poultry waste management by co-digestion with perennial grass: Effects of mixing ratio, pretreatments, reaction temperature, and effluent recycle on biomethanation yield

    Article • Biochemical Engineering Journal, July 2023, Elsevier

    DR Santhana Krishnan

  26. Performance and microbial analysis of a fluidized bed membrane bioreactor operated in the partial nitrification and anammox (PN/A) mode for polishing anaerobically treated effluent to industrial discharge standard

    Article • Journal of Environmental Chemical Engineering, June 2023, Elsevier

    DR Santhana Krishnan

  27. Recent advancement and applications of biochar technology as a multifunctional component towards sustainable environment

    Article • Environmental Development, June 2023, Elsevier

    DR Santhana Krishnan

  28. Biochar and sustainable environmental development towards adsorptive removal of pollutants: Modern advancements and future insight

    Article • Process Safety and Environmental Protection, May 2023, Elsevier

    DR Santhana Krishnan

  29. Effect of process parameters on bio-oil yield from lignocellulosic biomass through microwave-assisted pyrolysis technology for sustainable energy resources: Current status

    Article • Journal of Analytical and Applied Pyrolysis, May 2023, Elsevier

    DR Santhana Krishnan

  30. Performance evaluation and energy potential analysis of anaerobic membrane bioreactor (AnMBR) in the treatment of simulated milk wastewater

    Article • Chemosphere, March 2023, Elsevier

    DR Santhana Krishnan

  31. Using Machine Learning to Predict the Performance of a Cross-Flow Ultrafiltration Membrane in Xylose Reductase Separation

    Article • Sustainability, February 2023, MDPI AG

    DR Santhana Krishnan

  32. Specific degradation of phenolic compounds from palm oil mill effluent using ozonation and its impact on methane fermentation

    Article • Chemical Engineering Journal, January 2023, Elsevier

    DR Santhana Krishnan

  33. Impact of Trimetallic Iron-Cobalt-Zinc (Fe-Co-Zn) Nanoparticles in the Anaerobic Digestion Process Optimization for Biogas Production

    Article • January 2023, Elsevier

    DR Santhana Krishnan

  34. Water–Energy–Food Nexus Components: Assessment of Water Footprint in Rice Production in Malaysia Using the LCA Approach

    Article • Transactions of Indian National Academy of Engineering, December 2022, Springer Science + Business Media

    DR Santhana Krishnan

  35. A review of eco-sustainable techniques for the removal of Rhodamine B dye utilizing biomass residue adsorbents

    Article • Physics and Chemistry of the Earth Parts A/B/C, December 2022, Elsevier

    DR Santhana Krishnan

  36. Advanced techniques in the production of biochar from lignocellulosic biomass and environmental applications

    Article • Cleaner Materials, December 2022, Elsevier

    DR Santhana Krishnan

  37. Dyes removal from textile wastewater by agricultural waste as an absorbent – A review

    Article • Cleaner Waste Systems, December 2022, Elsevier

    DR Santhana Krishnan

  38. The effects of chemical modification on adsorbent performance on water and wastewater treatment - A review

    Article • Bioresource Technology Reports, December 2022, Elsevier

    DR Santhana Krishnan

  39. A review of the biological treatment of leachate: Available technologies and future requirements for the circular economy implementation

    Article • Biochemical Engineering Journal, November 2022, Elsevier

    DR Santhana Krishnan

  40. Effect of Pellet Size and Adhesive Ratio on the Production of Kenaf Pellet as a Fossil Fuel

    Article • Journal of Chemical Engineering and Industrial Biotechnology, August 2022, Universiti Malaysia Pahang Publisher

    DR Santhana Krishnan

  41. Biochar production techniques utilizing biomass waste-derived materials and environmental applications – A review

    Article • Journal of Hazardous Materials Advances, August 2022, Elsevier

    DR Santhana Krishnan

  42. Water hyacinth (Eichhornia crassipes) for organic contaminants removal in water – A review

    Article • Journal of Hazardous Materials Advances, August 2022, Elsevier

    DR Santhana Krishnan

  43. Electrocoagulation treatment of raw palm oil mill effluent: Optimization process using high current application

    Article • Chemosphere, July 2022, Elsevier

    DR Santhana Krishnan

  44. Application of iron-cobalt-copper (Fe-Co–Cu) trimetallic nanoparticles on anaerobic digestion (AD) for biogas production

    Article • Biomass Conversion and Biorefinery, May 2022, Springer Science + Business Media

    DR Santhana Krishnan

  45. Fouling characteristics and cleaning approach of ultrafiltration membrane during xylose reductase separation

    Article • Bioprocess and Biosystems Engineering, April 2022, Springer Science + Business Media

    DR Santhana Krishnan

  46. Waste Minimisation Governance through Standardised Recycling Rate in Higher Education Institutions in Malaysia

    Article • April 2022, Emerald

    DR Santhana Krishnan

  47. A comprehensive assessment of the method for producing biochar, its characterization, stability, and potential applications in regenerative economic sustainability – A review

    Article • Cleaner Materials, March 2022, Elsevier

    DR Santhana Krishnan

  48. The role of iron-based nanoparticles (Fe-NPs) on methanogenesis in anaerobic digestion (AD) performance

    Article • Environmental Research, March 2022, Elsevier

    DR Santhana Krishnan

  49. Treatment of palm oil mill effluent using electrocoagulation powered by direct photovoltaic solar system

    Article • Chemical Engineering Research and Design, January 2022, Elsevier

    DR Santhana Krishnan

  50. Foodborne Pathogen Inactivation by Cold Plasma Reactive Species

    Article • January 2022, IGI Global

    DR Santhana Krishnan

  51. Landfill management and efficacy of anaerobic reactors in the treatment of landfill leachate

    Article • January 2022, Elsevier

    DR Santhana Krishnan

  52. Sustainable engineering of food waste into high-quality animal feed using a drying technology

    Article • January 2022, Elsevier

    DR Santhana Krishnan

  53. Review on Evaluation of Renewable Bioenergy Potential for Sustainable Development: Bright Future in Energy Practice in India

    Article • ACS Sustainable Chemistry & Engineering, November 2021, American Chemical Society (ACS)

    DR Santhana Krishnan, Dr. Shiv Prasad

  54. Understanding the impacts of the COVID-19 pandemic on sustainable agri-food system and agroecosystem decarbonization nexus: A review

    Article • Journal of Cleaner Production, October 2021, Elsevier

    DR Santhana Krishnan, Pankaj Kumar

  55. Direct interspecies electron transfer performance through nanoparticles (NPs) for biogas production in the anaerobic digestion process

    Article • International Journal of Environmental Science and Technology, October 2021, Springer Science + Business Media

    DR Santhana Krishnan

  56. Photocatalytic degradation of methylene blue dye and fungi Fusarium equiseti using titanium dioxide recovered from drinking water treatment sludge

    Article • Biomass Conversion and Biorefinery, September 2021, Springer Science + Business Media

    DR Santhana Krishnan

  57. Humanizing the Localizing Sustainable Development Goals (SDGs) in Education and Research at Higher Education Institutions (HEIs)

    Article • Journal of Sustainability Perspectives, August 2021, Center of Biomass and Renewable Energy (CBIORE)

    DR Santhana Krishnan

  58. A review on the impact of conductive nanoparticles (CNPs) in anaerobic digestion: Applications and limitations

    Article • Environmental Technology & Innovation, August 2021, Elsevier

    DR Santhana Krishnan

  59. Current technologies for recovery of metals from industrial wastes: An overview

    Article • Environmental Technology & Innovation, May 2021, Elsevier

    DR Santhana Krishnan

  60. Evaluating heavy metals contamination in soil and vegetables in the region of North India: Levels, transfer and potential human health risk analysis

    Article • Environmental Toxicology and Pharmacology, February 2021, Elsevier

    DR Santhana Krishnan

  61. Application of bioelectrochemical systems in wastewater treatment and hydrogen production

    Article • January 2021, Elsevier

    DR Santhana Krishnan

  62. Development of microbial biofilms on cellulosic fibres for organic matter removal in river water treatment

    Article • January 2021, Desalination Publications

    DR Santhana Krishnan

  63. Effect of organic loading rate on the performance of modified anaerobic baffled reactor treating landfill leachate containing heavy metals

    Article • Materials Today Proceedings, January 2021, Elsevier

    DR Santhana Krishnan

  64. A review on municipal solid waste as a renewable source for waste-to-energy project in India: Current practices, challenges, and future opportunities

    Article • Journal of Cleaner Production, December 2020, Elsevier

    Dr Hesam Kamyab, DR Santhana Krishnan

  65. Recent trends of extremophiles application in Microbial Electrochemical Systems as Energy scavenger: A mini review

    Article • IOP Conference Series Materials Science and Engineering, December 2020, Institute of Physics Publishing

    DR Santhana Krishnan

  66. Prediction and optimization of biogas production from POME co-digestion in solar bioreactor using artificial neural network coupled with particle swarm optimization (ANN-PSO)

    Article • Biomass Conversion and Biorefinery, October 2020, Springer Science + Business Media

    DR Santhana Krishnan

  67. Development of F-N-C-O Taguchi Method for Robust Measurement System Using a Case Study of T-Peel Test on Adhesion Strength

    Article • Applied Sciences, September 2020, MDPI AG

    DR Santhana Krishnan

  68. Optimization of operating parameters for xylose reductase separation through ultrafiltration membrane using response surface methodology

    Article • Biotechnology Reports, September 2020, Elsevier

    DR Santhana Krishnan

  69. Effect of Cellulose Nanocrystals Extracted from Oil Palm Empty Fruit Bunch as Green Admixture for Mortar

    Article • Scientific Reports, April 2020, Springer Science + Business Media

    DR Santhana Krishnan

  70. Biohydrogen production via thermophilic fermentation: A prospective application of Thermotoga species

    Article • Proceedings of the Institution of Civil Engineers - Energy, April 2020, Elsevier

    DR Santhana Krishnan

  71. Enhanced bioenergy production from palm oil mill effluent by co-digestion in solar assisted bioreactor: Effects of hydrogen peroxide pretreatment

    Article • Journal of Environmental Chemical Engineering, April 2020, Elsevier

    DR Santhana Krishnan

  72. Co-digestion of palm oil mill effluent for enhanced biogas production in a solar assisted bioreactor: Supplementation with ammonium bicarbonate

    Article • The Science of The Total Environment, March 2020, Elsevier

    DR Santhana Krishnan

  73. Bioremediation potential of macroalgae Gracilaria edulis and Gracilaria changii co-cultured with shrimp wastewater in an outdoor water recirculation system

    Article • Environmental Technology & Innovation, February 2020, Elsevier

    DR Santhana Krishnan

  74. Electrocoagulation treatment of raw palm oil mill effluent: Effect of operating parameters on floc growth and structure

    Article • Journal of Water Process Engineering, February 2020, Elsevier

    DR Santhana Krishnan

  75. Statistical optimization of titanium recovery from drinking water treatment residue using response surface methodology

    Article • Journal of Environmental Management, February 2020, Elsevier

    DR Santhana Krishnan

  76. Application of 2D Graphene-Based Nanomaterials for Pollutant Removal from Advanced Water and Wastewater Treatment Processes

    Article • January 2020, American Chemical Society (ACS)

    DR Santhana Krishnan

  77. Bioethanol production from lignocellulosic biomass (water hyacinth): a biofuel alternative

    Article • January 2020, Elsevier

    DR Santhana Krishnan

  78. Green Engineering for Campus Sustainability

    Article • January 2020, Springer Science + Business Media

    DR Santhana Krishnan, DR ABU ZAHRIM YASER

  79. Mechanical Testing of Sugar Palm Fiber Reinforced Sugar Palm Biopolymer Composites

    Article • January 2020, Elsevier

    DR Santhana Krishnan

  80. Treatment of landfill leachate using modified anaerobic baffled reactor

    Article • January 2020, Desalination Publications

    DR Santhana Krishnan

  81. Improving Methane Generation by Co-Digestion of Sewage Sludge and Petrochemical Wastewater: Influence of Heat and Alkali Pretreatment

    Article • Asian Journal of Chemistry, August 2019, Asian Journal of Chemistry

    DR Santhana Krishnan

  82. Accelerated two-stage bioprocess for hydrogen and methane production from palm oil mill effluent using continuous stirred tank reactor and microbial electrolysis cell

    Article • Journal of Cleaner Production, August 2019, Elsevier

    DR Santhana Krishnan

  83. Changes in composition and structure of water hyacinth based on various pretreatment methods

    Article • BioResources, June 2019, BioResources

    DR Santhana Krishnan

  84. Conversion of Landscape Waste into Bio-coke Solid Fuel

    Article • April 2019, Springer Science + Business Media

    DR Santhana Krishnan

  85. Outlook of fermentative hydrogen production techniques: An overview of dark, photo and integrated dark-photo fermentative approach to biomass

    Article • Energy Strategy Reviews, April 2019, Elsevier

    DR Santhana Krishnan

  86. Process constraints in sustainable bio-hythane production from wastewater: Technical note

    Article • Bioresource Technology Reports, February 2019, Elsevier

    DR Santhana Krishnan

  87. Removal of COD from landfill leachate by Predication and Evaluation of Multiple Linear Regression (MLR) Model and Fenton process

    Article • Egyptian Journal of Chemistry, January 2019, Egypts Presidential Specialized Council for Education and Scientific Research

    DR Santhana Krishnan

  88. High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application

    Article • Chinese Journal of Chemical Engineering, January 2019, Elsevier

    DR Santhana Krishnan

  89. Photohydrogen production from dark-fermented palm oil mill effluent (DPOME) and statistical optimization: Renewable substrate for hydrogen

    Article • Journal of Cleaner Production, October 2018, Elsevier

    DR Santhana Krishnan, Fuad Ameen

  90. Utilization of micro‒algal biomass residues (MABRS) for bio‒hythane production‒ a perspective

    Article • Journal of Applied Biotechnology & Bioengineering, May 2018, MedCrave Group LLC

    DR Santhana Krishnan

  91. Electrode design for electrochemical cell to treat palm oil mill effluent by electrocoagulation process

    Article • Environmental Technology & Innovation, February 2018, Elsevier

    DR Santhana Krishnan

  92. Greening campus experience: moving towards living laboratory action plan

    Article • E3S Web of Conferences, January 2018, EDP Sciences

    DR Santhana Krishnan

  93. Comparison of process stability in methane generation from palm oil mill effluent using dairy manure as inoculum

    Article • Environmental Technology & Innovation, November 2017, Elsevier

    DR Santhana Krishnan

  94. Fermentative hydrogen production from indigenous mesophilic strain Bacillus anthracis PUNAJAN 1 newly isolated from palm oil mill effluent

    Article • International Journal of Hydrogen Energy, June 2017, Elsevier

    DR Santhana Krishnan

  95. Treatment of palm oil mill effluent by electrocoagulation with presence of hydrogen peroxide as oxidizing agent and polialuminum chloride as coagulant-aid

    Article • Water Resources and Industry, June 2017, Elsevier

    DR Santhana Krishnan

  96. An investigation of two-stage thermophilic and mesophilic fermentation process for the production of hydrogen and methane from palm oil mill effluent

    Article • Environmental Progress & Sustainable Energy, March 2017, Wiley

    DR Santhana Krishnan

  97. Role of organic loading rate in bioenergy generation from palm oil mill effluent in a two-stage up-flow anaerobic sludge blanket continuous-stirred tank reactor

    Article • Journal of Cleaner Production, January 2017, Elsevier

    DR Santhana Krishnan

  98. Effect of organic loading rate on hydrogen (H 2 ) and methane (CH 4 ) production in two-stage fermentation under thermophilic conditions using palm oil mill effluent (POME)

    Article • Energy for Sustainable Development, October 2016, Elsevier

    DR Santhana Krishnan

  99. Process enhancement of hydrogen and methane production from palm oil mill effluent using two-stage thermophilic and mesophilic fermentation

    Article • International Journal of Hydrogen Energy, August 2016, Elsevier

    DR Santhana Krishnan

  100. Performance study on sequestration of copper ions from contaminated water using newly synthesized high effective chitosan coated magnetic nanoparticles

    Article • Journal of Molecular Liquids, February 2016, Elsevier

    DR Santhana Krishnan