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Faculty : School of Bio-Chemical Engineering and Technology (BCET)
Name : Dr. Sandhya Babel (Associate Professor)
Position : Associate Professor
E - Mail : sandhya@siit.tu.ac.th
Phone Rangsit : +66-2-986-9009, +66-2-986-9101, +66-2-564-3226
Phone Bangkadi :
Phone Extension : 2307
 
Education
  • B.Sc. (1st Class) in Biology/Chemistry, University of Indore, India
  • M.Sc. in Biochemistry, University of Indore, India
  • M.Sc. in Environmental Technology and Management, Asian Institute of Technology, Thailand
  • D.Tech.Sc. in Environmental Technology and Management, Asian Institute of Technology, Thailand
Academic Awards
  • Awarded scholarship by the Japanese Government for pursuing D. Tech. Sc. (Environmental Technology and Management) studies at the Asian Institute of Technology, Bangkok, Thailand
  • Awarded scholarship by the Norwegian Government for pursuing M. Sc. (Environmental Technology and Management) studies at the Asian Institute of Technology, Bangkok, Thailand
  • Awarded merit scholarship by the Ministry of Human Resources of the Government of India for pursuing M. Sc. (Biochemistry) studies at the University of Indore, Indore, India
  • Secured first position in order of merit in the University of Indore in Master of Science (Biochemistry) program
  • Secured eighth position in order of merit in the University of Indore in Bachelor of Science degree amongst about one thousand students
Research Areas
    Adsorption, Bio-hydrogen production, Phytoremediation, Solid and hazardous waste management, Wastewater treatment
Research Interests

    Removal of Heavy Metals and other Pollutants from Aqueous Solution/Sludges using Agriculture Waste Materials and other Low Cost Adsorbents

    Agricultural wastes are unused resources, which in many cases present a serious problem of disposal. However, these waste materials can be used to remove toxic heavy metal and other pollutants from wastewater as they are capable of binding by adsorption, chelation, and ion exchange. The exchange properties of these wastes can be attributed to the presence of carboxylic, phenolic, and hydroxylic groups. In order to enhance cation exchange capacities, these groups may be modified by oxidation, carboxymethylation, acetylation, and phosphation. The utilization of agricultural by-products in treating the wastewater/sludges contaminated by heavy metals and other pollutants is an attractive area of research.

    Biohydrogen Production

    Hydrogen produced from biomass in a sustainable way is recognized as an important component of the fuel market for future low or non-carbon based energy systems. A combination of hydrogen with fuel cells can help in saving energy. Agro-industrial wastewater rich in organics can be used for biohydrogen production using a dark fermentation process. Biohydrogen production can be enhanced by using an enzyme which can degrade complex organics to simpler compounds. This can be coupled with a Microbial Fuel Cell (MFC). Microbial Fuel Cell (MFC), a bioreactor, can convert chemical energy in the chemical bonds in organic compounds into electrical energy through catalytic reactions of microorganisms under anaerobic conditions. Thus, waste can be changed to a clean source of energy.

    Phytoremediation for Treatment of Wastewater/ Contaminated Soil

    Phytoremediation uses plants to clean wastewater/contaminated sites. It is the use of plants to partially or substantially remediate selected contaminants in contaminated soil, sludge, sediment, ground water, surface water and wastewater. It utilizes a variety of plant biological processes and the physical characteristics of plants to aid in remediation. Phytoremediation is widely viewed as the ecologically viable alternative to the environmentally destructive physical remediation methods currently practiced. Plants have several endogenous genetic, biochemical, and physiological properties that make them ideal agents for soil and water remediation. Phytoremediation uses hyperaccumulator and accumulator plants that can remove excess heavy metals from contaminated soils, wastewater and sludge.

Theses Supervised

Master Theses Supervised

1985: Smita Bhargava. Consumer Acceptability of Parched Soybean and their Biochemical and Nutritional Assessment.
1986: Mamata Dave. Effect of Food Supplementation on Marasmic Children.
2002: Tonni A. Kurniawan. A Research Study on Chromium (VI) Removal from Contaminated Waste Water Using Chemically Modified Low Cost Adsorbents and Commercial Activated Carbon. Supported by the Asian Development Bank. Awarded the Best Thesis submitted to the BioInfoBank Library (Poland) in 2008, by the Scientific Committee of BioInfoBank Institute, Poland.
2007: Einstine M. Opiso. Removal of Chromium (VI) from Contaminated Wastewater by Andisol.

Doctoral Theses Supervised

2006: Yasantha Abeysundara U. G. Environmental, Economic and Social Assessment of Construction Materials for Greening the Life of Buildings in Sri Lanka. Received an Award for Outstanding Postgraduate Research under the Hiran Tillekeratne Research Fund from the University Grants Commission, Colombo, Sri Lanka, 22 October 2008.
2007: Dominica del Mundo Dacera. Extraction and Removal of Heavy Metals from Contaminated Sludge Using Raw and Fermented Liquid from Pine Apple Wastes.
2009: Jenjira Saetang. Landfill Leachate Treatment by White Rot Fungi.
2012: Emmanuel P. Leano. Hydrogen and Electricity Production from Agro-industrial Wastewater Using Microorganisms.
2012: Chayarat Tantanasarit. Nutrient Dynamics and Its Effect on Green Mussels (Perna virdis).
Current: Nonglak Rungruang. Phytoextraction of Cadmium from Contaminated Paddy Soil.
Current: Hanggara Sudrajat. Porous nonmetal-doped ZrO2 spheres: synthesis, characterization and application for photocatalytic degradation of azo dye.

 
Work Experiences
  • 2000-Present: SIIT
  • 2000: Post Doctoral Fellow, Urban Environmental Engineering and Management Program, School of Environment, Resources and Development, Asian Institute of Technology, Thailand
  • 1993-1996: Research Associate, Urban Environmental Engineering and Management Program, School of Environment, Resources and Development, Asian Institute of Technology, Thailand
  • 1990-1991: Research Associate, Urban Environmental Engineering and Management Program, School of Environment, Resources and Development, Asian Institute of Technology, Thailand
  • 1982-1990: Assistant Professor, Government Girls Post Graduate College, Indore, India
List of Publications
  • Chayarat Tantanasarit and Sandhya Babel (2014). Simulation of “net” nutrients removal by green mussel (Perna viridis) in estuarine and coastal areas, World Academy of Science, Engineering and Technology: Proceedings of the ICEBESE 2014: International Conference on Environmental, Biological and Ecological Sciences and Engineering [CD-ROM], 14-15 January 2014, Zurich, Switzerland, Vol. 85, 2014, pp. 19-22.
  • P. Limpiteeprakan and S. Babel (2014). Quantification of nanosilver from different commercial products available in Thailand and their protential for leaching with deionized water. In Proceedings of the 4th International Conference on Solid Waste Management (IconSWM 2014) [CD-ROM], 28-30 January 2014, Hyderabad, India, pp 643-649.
  • VilaySouk, Xaysackda and Sandhya Babel (2013). Estimation of greenhouse gas emission from landfill in Luangprabang, Lao PDR. In Proceedings of the 8th GMSARN International Conference 2013 on Green Growth in GMS: Energy, Environment and Social Issues [CD-ROM], 18-20 December 2013, Mandalay, Myanmar, 4 p.
  • Babel, Sandhya and Pawena Limpiteeprakan (2013). Leaching potential of nanosilver from commercial products. In Proceedings of the 8th GMSARN International Conference 2013 on Green Growth in GMS: Energy, Environment and Social Issues [CD-ROM], 18-20 December 2013, Mandalay, Myanmar, 5 p.
  • Xaysackda Vilaysouk and Sandhya Babel (2013). Comparison of Potential Greenhouse Gas Emission from Municipal Solid Waste Disposal Site in Savannakhet and Champasak, Lao PDR. In Proceedings of the 6th ASEAN Civil Engineering Conference (ACEC) and the 6th ASEAN Environmental Engineering Conference (AEEC), 21-22 November 2013, Bangkok, Thailand, Paper No. E30, pp. 290-300.
  • Chayarat Tantanasarit; Andrew J. Englande; and Sandhya Babel (2013). Nitrogen, phosphorus and silicon uptake kinetics by marine diatom Chaetoceros calcitrans under high nutrient concentrations, Journal of Experimental Marine Biology and Ecology, Vol. 446, August 2013, pp. 67-75.
  • E.P. Leaño; S. Babel; A. Sharp; and W. Prathumpai (2013). Effects of thermophilic heat pretreatment of mixed inoculum on biohydrogen production from synthetic and sugarcane mill wastewaters. In Proceedings of International Conference on Solid Waste 2013 Innovation in Technology and Management [CD-ROM], 5-9 May 2013, Hong Kong SAR, China, pp.773-777.
  • Dacera, Dominica D. and Sandhya Babel (2013). Effect of drying process on heavy metals fractionation of contaminated sludge for land application, Soil and Sediment Contamination, Vol. 22, No. 4, 2013, pp.457-468.
  • Chayarat Tantanasarit; Sandhya Babel; Andrew J. Englande; and Shettapong Meksumpun (2013). Influence of size and density on filtration rate modeling and nutrient uptake by green mussel (Perna viridis), Marine Pollution Bulletin, Vol. 68, No. 1-2, 2013, pp. 38-45.
  • Jenjira Saetang and Sandhya Babel (2012). Biodegradation of organics in landfill leachate by immobilized white rot fungi, Trametes versicolor BCC 8725, Environmental Technology, Vol. 33, No. 22, November 2012, pp. 2575-2584. (Selected papers from the International Conference on Solid Waste-Moving Towards Sustainable Resource Management, 2-6 May 2011, Hong Kong SAR)
  • Suzuki, Tatsuhiko; Yoshikane Takahashi; Rachnarin Nitisoravut; Sandhya Babel; and Chongrak Polprasert (2012). The study of applying the hybrid MF membrane system for the treatment of high-color surface water in Thailand. In Proceedings of the 9th International Symposium on Water Supply Technology in Yokohama 2012, 20-22 November 2012, Yokohama, Japan, 8 p.
  • Leaño, Emmanuel Pacheco; Alfredo J. Anceno; and Sandhya Babel (2012). Ultrasonic pretreatment of palm oil mill effluent: impact on biohydrogen production, bioelectricity generation, and underlying microbial communities, International Journal of Hydrogen Energy, Vol. 37, No. 17, September 2012, pp. 12241-12249.
  • Chayarat Tantanasarit and Sandhya Babel (2012). Investigation on filtration rate and subsequent nutrient removal by green mussel Perna viridis. In Proceedings of the Conference on Environmental Pollution and Public Health (CEPPH 2012) [CD-ROM], 9-11 August 2012, Shanghai, China, pp. 476-479.
  • Leaño, Emmanuel P. and Sandhya Babel. (2012). The influence of enzyme and surfactant on biohydrogen production and electricity generation using Palm Oil Mill Effluent. Journal of Cleaner Production, Vol 31, August 2012, pp. 91-99.
  • E.P. Leaño, Sandhya Babel (2012). Effects of pretreatment methods on cassava wastewater for biohydrogen production optimization, Renewable Energy Vol. 39, No. 1, March 2012, pp. 339-346.
  • Nonglak Rungruang and Sandhya Babel (2011). Cadmium removal potential from contaminated soil by Tagetes Erecta L.: Effect of zinc and pH. In Proceedings of the 2nd International Conference on Sustainable Waste Management, 8-11 November 2011, Kolkata, India, pp.730-735.
  • Nonglak Rungruang; Sandhya Babel and Preeda Parkpianb (2011). Screening of potential hyperaccumulator for cadmium from contaminated soil, Desalination and Water Treatment, Vol. 32, Nos. 1-3, August 2011, pp. 19-26.
  • E.P. Leaño and Sandhya Babel (2011). Electricity generation from anaerobic sludge and cassava wastewater subjected to pretreatment methods using microbial fuel cell. In Proceedings of the 1st Clean Energy and Technology (CET 2011)˙ [CD ROM], 27 - 29 June 2011, Kuala Lumpur Malaysia, pp. 1-5
  • Sandhya Babel and Satoshi Takizawa (2011). Chemical pretreatment for reduction of membrane fouling caused by algae. Desalination, Vol. 274, No. 1-3, pp. 171-176.
  • Jenjira Saetang and Sandhya Babel (2011). Biodegradation of organics in landfill leachate by immobilized white rot fungi, Trametes versicolor BCC 8725. In Proceedings of the International Conference on Solid Waste 2011 Moving Towards Sustainable Resource Management[CD-ROM], 2-6 May 2011, Hong Kong SAR, China. pp. 700-704.
  • Leaño, E.P. and Sandhya Babel (2011). Effect of thermophilic heat pretreatment of mixed inoculum on biohydrogen production from artificial wastewater and sugarcane mill wastewater. A paper presented in International conference “Microbes in Wastewater and Water treatment, Bioremediation and Energy Production” 24-26 January 2011, BITS Pilani, Goa, India.
  • Jenjira Saetang and Sandhya Babel (2010). Effect of glucose on enzyme activity and color removal by Trametes versicolor for high strength landfill leachate, Water Science & Technology, Vol. 62, No. 11, pp. 2519-2526.
  • Nonglak Rungruang; Sandhya Babel; and Preeda Parkpian (2010). Screening of potential hyperaccumulator for cadmium from contaminated soil. A paper presented in Challenges in Environmental Science and Engineering (CESE) 2010, 26 September - 1 October 2010, Cairns, Australia.
  • Jenjira Saetang and Sandhya Babel (2010). Fungi immobilization for landfill leachate treatment, Water Science & Technology, Vol. 62, No. 6, 2010, pp. 1240-1247.
  • Abeysundara, U.G. Yasantha and Sandhya Babel (2010). A quest for sustainable materials for building elements in Sri Lanka: foundations, Environmental Progress and Sustainable Energy, Vol. 29, No. 3, October 2010, pp. 370-381.
  • Babel, Sandhya and Satoshi Takizawa (2010). Microfiltration membrane fouling and cake behavior during algal filtration, Desalination, Vol. 261, Nos. 1-2, October 2010, pp. 46-51.
  • Babel, Sandhya and Einstine M. Opiso (2010). Utilisation of andisols as possible low-cost adsorbent to remove Cr (VI) from aqueous solution, International Journal of Environmental Technology and Management, Vol. 12, Nos. 2-4, February 2010, pp. 277-293.
  • Xayyavong, Syvang and Sandhya Babel (2010). Quality of bottled drinking water: case study in Vientiane, Laos and Thailand. A paper presented in International Conference on Environmental Pollution and Public Health (EPPH2010), 21-23 June 2010, Chengdu, China.
  • Dacera, Dominica Del Mundo; Sandhya Babel; and Preeda Parkpian (2009). Potential for land application of contaminated sewage sludge treated with fermented liquid from pineapple wastes, Journal of Hazardous Materials, Vol. 167, Nos. 1-3, August 2009, pp. 866-872.
  • Jenjira Saetang and Sandhya Babel (2009). Effect of leachate loading rate and incubation period on the treatment efficiency by T. versicolor immobilized on foam cubes, International Journal of Environmental Science and Technology, Vol. 6, No. 3, pp. 457-466.
  • Abeysundara, U.G. Yasantha and Sandhya Babel (2009). Selecting sustainable materials for ceilings in Sri Lanka, Proceedings of ICE, Construction Materials, Vol. 162, No. 2, pp. 49-58.
  • Abeysundara, U.G. Yasantha; Sandhya Babel; and Shabbir Gheewala (2009). A matrix in life cycle perspective for selecting sustainable materials for buildings in Sri Lanka, Building and Environment, Vol. 44, No. 5, May 2009, pp. 997-1004.
  • Babel, Sandhya; J. Sae-Tang; Athapol Pecharaply (2009). Anaerobic co-digestion of sewage and brewery sludge for biogas production and land application, International Journal of Environmental Science and Technology, Vol. 6, No. 1, Winter 2009, pp. 131-140.
  • Abeysundara, U.G. Yasantha; Sandhya Babel; and Mongkut Piantanakulchai (2009). A matrix for selecting sustainable floor coverings for buildings in Sri Lanka, Journal of Cleaner Production, Vol. 17, No. 2, January 2009, pp. 231-238.
  • Jenjira Saetang and Sandhya Babel (2009). Effect of glucose on enzyme activity and color removal by T. versicolor for high strength landfill leachate. In Proceedings of International Conference “3rd Specialized Conference on Decentralized Water and Wastewater International Network (IWA Conference)” [CD-ROM], 10-13 November 2009, Kathmandu, Nepal.
  • Babel, Sandhya; Massalin Suksai and Phattaraporn Sarikkha (2009). Lignin recovery from pulp and paper mill wastewater. In Proceedings of International Conference on Biotechnology “Biotechnology for Better Life” [CD ROM], 15-16 June 2009, Bandung, Indonesia. pp. 103-109.
  • Babel, Sandhya; Pakaporn Kantapasara; and Suthicha Jittanon (2009). Comparison of environment impacts of gaseous emissions from power plants in Thailand. In Proceedings of International Conference: An International Perspective on Environmental and Water Resources (EWRI-ASCE) [CD-ROM], 5-7 January 2009, Bangkok, Thailand. 8 p.
  • Dacera, Dominica Del Mundo and Sandhya Babel (2008). Removal of heavy metals from contaminated sewage sludge using Aspergillus niger fermented raw liquid from pineapple wastes, Bioresource Technology, Vol. 99, No. 6, April 2008, pp. 1682-1689.
  • Babel, Sandhya; Alice Sharp; Amornpong Thongbhakdi; and Zebunessa Shoma (2008). Community participation in pollution abatement and water quality conservation through bio monitoring. In Proceedings of the 3rd WEPA International Forum on Water Environmental Governance in Asia, 23-24 October 2008, Putrajaya, Malaysia. pp. 132-137.
  • Babel, Sandhya and Satoshi Takizawa (2008). Membrane fouling and cake behavior during algal filtration. In Proceedings of the 6th Regional Sympoisum on Membrane Science & Technology, 13-15 August 2008, Phuket, Thailand. 8 p.
  • Dacera, Dominica del Mundo and Sandhya Babel (2008). Evaluation of heavy metal from removal by unfermented and naturally fermented pineapple wastes from Bangkok sewage sludge. In Proceedings of the Second International Symposium on Food and Water Sustainability in Asia 2008, 7-8 October 2008, Macau, China. pp. 121-128.
  • Nonglak Rungruang and Sandhya Babel (2008). Treatment of natural rubber processing wastewater by combination of ozonation and activated sludge process. In Proceedings of International Conference on Environmental Research and Technology (ICERT 2008), 28-30 May 2008, Parkroyal Penang, Malaysia. pp. 259-263.
  • Abeysundra, U. G. Yasantha; Sandhya Babel; and Shabbir Gheewala (2007). A decision making matrix with life cycle perspective of materials for roofs in Sri Lanka, Journal of Materials and Design, Vol. 28, pp. 2478-2487.
  • Abeysundra, U. G. Yasantha; Sandhya Babel; Shabbir Gheewala; and Alice Sharp (2007). Environmental, economic and social analysis of materials for doors and windows in Sri Lanka, Building and Environment, Vol. 42, No. 5, May 2007, pp. 2141-2149.
  • Babel, Sandhya and Einstine M. Opiso (2007). Removal of Cr from synthetic wastewater by sorption into volcanic ash soil, International Journal of Environmental Science and Technology, Vol. 4, No. 1, pp. 99-107.
  • Dacera, Dominica Del Mundo and Sandhya Babel (2007). Heavy metals removal from contaminated sewage sludge by naturally fermented raw liquid from pine apple wastes, Water Science and Technology, Vol. 56, No 7, pp. 145-152.
  • Babel, Sandhya; Suwanchai Nitisoravut; Alice Sharp; and Dominica Del Mundo Dacera (2007). Low cost community based treatment unit for floating food vendors and slum community in Thailand. In Proceedings of the 2nd International Forum on Water Environmental Governance in Asia, 3-4 December 2007, Beppu, Oita, Japan. pp. 92-97.
  • Dacera, Dominica Del Mundo and Sandhya Babel (2007). Assessment of heavy metal removal efficiencies by naturally fermented and A. Niger fermented pineapple wastes from contaminated sewage sludge. In Proceedings of the ECO-TECH 2007 International Conference, 26-28 November 2007, Kalmar, Sweden. pp. 417-426.
  • Dacera, Dominica Del Mundo and Sandhya Babel (2007). Naturally fermented raw liquid from pineapple wastes as extractant for heavy metal removal from contaminated sewage sludge. In Proceedings of the International Conference on Water Management and Technology Applications in Developing Countries [CD-ROM], 14-16 May 2007, Kuala Lumpur, Malaysia. 8 p.
  • Jenjira Saetang and Sandhya Babel (2007). Landfill leachate treatment using white rot fungi. In Proceedings of the 2nd IWA – ASPIRE Conference and Exhibition [CD-ROM], 29-31 October 2007, Perth, Australia, Paper No. 059, 8 p.
  • Jenjira Saetang and Sandhya Babel (2007). Solid waste landfill leachate treatment from garbage truck using immobilized white rot fungi. In Proceedings of the 2007 International Symposium on Environmental Science and Technology, 13-16 November, Beijing, China. pp. 1265-1271.
  • Babel, Sandhya and Dominica del Mundo Dacera (2006). Heavy metal removal from contaminated sludge for land application: a review, Waste Management, Vol. 26, No. 9, 2006, pp. 988-1004.
  • Dacera, Dominica del Mundo and Sandhya Babel (2006). Use of citric acid for heavy metals extraction from contaminated sewage sludge for land application, Water Science and Technology, Vol. 54, No. 9, pp. 129-135.
  • Kurniawan, Tonni Agustiono; Gilbert Y. S. Chan; Wai-Hung Lo; and Sandhya Babel (2006). Comparisons of low-cost adsorbents for treating wastewaters laden with heavy metals, Science of the Total Environment, Vol. 366, No. 2-3, August 2006, pp. 409-426.
  • Kurniawan, Tonni Agustiono; Gilbert Y. S. Chan; Wai-Hung Lo; and Sandhya Babel (2006). Physico–chemical treatment techniques for wastewater laden with heavy metals, Chemical Engineering Journal, Vol. 118, No. 1-2, May 2006, pp. 83-98.
  • Dacera, Dominica del Mundo and Sandhya Babel (2006). Removal of heavy metals from sludge using pineapple wastes, Journal of Research in Engineering and Technology, Vol. 3, No. 3, pp. 265-277.
  • Abeysundra, U. G. Yasantha; Sandhya Babel; and Alice Sharp (2006). A life cycle perspective on building floor coversings in Sri Lanka. In Proceedings of 5th Australian Conference on Life Cycle Assessment [CD-ROM], 22-24 November 2006, Melbourne, Australia. 10 p.
  • Abeysundara U.G., Yasantha; Sandhya Babel; and Shabbir Gheewala (2006). A matrix with life cycle perspective of materials for roof ceilings in Sri Lanka. In Proceedings of the Seventh International Conference on EcoBalance, 14-16 November 2006, Tsukuba, Japan. 4 p.
  • Abeysundara U.G., Yasantha; Sandhya Babel; and Shabbir Gheewala (2006). Integration of environmental economic and social assessments for selecting sustainable materials for buildings in Sri Lanka: a life cycle perspective. In Proceedings of the International Conference on Green and Sustainable Innovation (ICGSI2006) [CD-ROM], 29 November – 1 December 2006, Chiang Mai, Thailand. pp. 375-381.
  • Dacera, Dominica del Mundo and Sandhya Babel (2006). Use of citric acid for heavy metals extraction from contaminated sewage sludge for land application. In Proceedings of the IWA World Water Congress and Exhibition, 10-14 September 2006, Beijing, China. 8 p.
  • Opiso, Einstine M. and Sandhya Babel (2006). Potential of andisol around Mt. Isarog in the Philippines for the removal of Cr (VI) from aqueous systems. In Proceedings of 4th International Workshop on Earth Science and Technology, December 2006, Fukuoka, Japan. pp. 399-406.
  • Opiso, Einstine M.; Sandhya Babel; and Pakorn Opapraksit (2006). Removal of Cr(VI) from synthetic wastewater by volcanic ash soil. In Proceedings of the International Conference on Green and Sustainable Innovation (ICGSI2006), 29 November - 1 December 2006, Chiang Mai, Thailand. pp. 338-344.
  • Babel, Sandhya and Tonni Agustiono Kurniawan (2006). Various treatment technologies to remove arsenic and mercury from contaminated ground water: An overview. South East Asian Water Environment 1 published by IWA. Edited by Schinichiro Ohgaki, pp. 214- 222.
  • Kurniawan, Tonni Agustiono andSandhya Babel (2006). Cr(VI) removal from electroplating wastewater using coconut shell charcoal and coconut shell-based activated carbon modified with oxidizing agents and/or chitosan. Focus on Environmental Research Emma B. Davis (edi), Nova Science Publishers Inc., pp. 211-234.
  • Abeysundra U. G., Yasantha and Sandhya Babel (2005). Comparison of waste management practices in Thailand and Sri Lanka and management steps to improve present waste management practices in Colombo, Sri Lanka. A paper presented at the International Conference on Integrated Solid waste Management in South East Asia, 5-7 July 2005, Siem Reap, Cambodia.
  • Abeysundra U. G., Yasantha; Sandhya Babel; and Shabbir Gheewala (2005). Analysis of environmental, economic and social factors of construction materials for doors and windows: a case study from Sri Lanka. In Proceedings of the International Conference on Innovation by Life Cycle Management (LCM2005) , 5-7 September 2005, Barcelona, Spain. Vol. 1, pp. 276-280.
  • Babel, Sandhya and Dominica del Mundo Dacera (2005). Chemical extraction of heavy metals from contaminated sludge for land application. In Proceedings of the International Congress of Chemistry and Environment (ICCE 2005) , 24-26 December 2005, Indore, India. pp. 137-141.
  • Babel, Sandhya and Umarat Suntisukaseam (2005). A research study on hexavalent chromium removal from synthetic wastewater using unmodified and chemically modified corn cob. In Proceedings of the 1st IWA – ASPIRE International Conference [CD-ROM], 10-15 July 2005, Singapore. 6 p.
  • Babel, Sandhya; Preeda Parkpian; and Jenjira Sae-Tang (2005). Alternative energy generation from waste sludge by anaerobic co-digestion. A paper presented at the International Conference on Integrated Solid waste Management in South East Asia, 5-7 July 2005, Siem Reap, Cambodia.
  • Kurniawan, Tonni A.; Gilbert Y. S. Chan; Wai-Hung Lo; Mukand S. Babel; and Sandhya Babel (2005). Problems and challenges of water resources management in Southeast Asia: the China’s Water Agenda 21 as a source of inspiration. In Proceedings of the 1st IWA – ASPIRE International Conference [CD-ROM], 10-15 July 2005, Singapore. 6 p.
  • Sandhya Babel and Satoshi Takizawa (2004). A study on algal fouling of microfiltration membranes with and without chemical pretreatment. In Proceedings of IWA Specialty Conference Water Environment – Membrane Technology (WEMT 2004) , June 7-10, 2004, Seoul, Korea, pp. 1443-1450.
  • Babel, S. and Kurniawan, T.A. (2004). Cr(VI) removal from synthetic wastewater using coconut shell charcoal and commercial activated carbon modified with oxidizing agents and/or chitosan. Chemosphere, Vol. 54, No. 7, pp. 951-967.
  • Sandhya Babel, Kensuke Fukushi, Bunpot Sitanrassamee (2004). Effect of acid speciation on solid waste liquefaction in an anaerobic acid digester. Water Research38, pp. 2416-2422.
  • Sandhya Babel and Tonni Agustiono Kurniawan (2004). Chromium (VI) removal from electroplating wastewater using chemically treated Zeolite. In Proceedings (CD-ROM) 9th World Filtration Congress, April 18-24, 2004 held at New Orleans, Louisiana, USA.
  • Shabbir Hussaini Gheewala, Mukand Singh Babel, Ashim Das Gupta and Sandhya Babel (2003). Rapid assessment techniques for chemicals in raw water sources. Journal of Water Supply Research and Technology- AQUA, 52.7, pp. 521-528.
  • Babel, S. and Kurniawan, T.A. (2003). A research study on Cr(VI)removal from contaminated wastewater using natural zeolite. Journal of Ion Exchange, 14, pp.289-292.
  • K. Fukushi, S. Babel, S. Burakrai (2003). Survival of Salmonella spp. in an anaerobic acid digester treating sewage sludge. Bioresource Technology 86, pp. 53-57.
  • Sandhya Babel and Tonni Agustiono Kurniawan (2003). Low-cost adsorbents for heavy metal uptake from contaminated water: a review. Journal of Hazardous Materials B97, pp. 219-243.
  • Dominica Dacera, Peesamai Jenvanitpanjakul, Suwanchai Nitisoravut, and Sandhya Babel (2003). Hexane reduction in a Thai rice bran oil factory: A cleaner technology approach. Thammasat International Journal of Science and Technology 8, No 4, pp. 6-17.
  • Babel, S. and Kurniawan, T.A. (2003). Various treatment technologies to remove arsenic and mercury from contaminated groundwater: An overview. In Proceedings of the 1st International Symposium on Southeast Asian Water Environment, 24-25 October 2003, Bangkok, Thailand, pp. 433-440.
  • Babel, S. and Kurniawan, T.A. (2003). Chromium removal from electroplating wastewater using chemically modified coconut shell charcoal and coconut shell-based activated carbon. In Proceedings (CD-ROM) of the IWA Asia-Pacific Regional Conference Asian Waterqual 2003, 19-23 October 2003, Bangkok, Thailand.
  • Kurniawan, T.A. and Babel, S. (2003). Chromium removal from electroplating wastewater using low-cost adsorbents and commercial activated carbon. In Proceedings of the 5th International Summer Symposium, 26 July 2003, Tokyo, Japan, pp. 345-348.
  • Tonni Agustiono Kurniawan and Sandhya Babel (2003). A Research study on Cr(VI) from electroplating wastewater using chemically modified coconut shell-based activated carbon and treated Zeolite. A paper presented in 9th Annual Industrial Wastes Technical and Regulatory Conference, 13-16 April 2003, San Antonio, Texas USA, pp 1-15.
  • T. Kurniawan and S. Babel (2003). A research study on Cr (VI) removal from contaminated wastewater using low-cost adsorbents and commercial activated carbon. In Proceedings of the 2nd Regional Conference on Energy Technology towards Cleaner Environment, 12-14 February 2003, Phuket, Thailand, pp. 1110-1117.
  • K. Fukushi, S. Babel and H. Xuan (2002). Examination of copper removing bacteria from activated sludge culture. Water Science Technology 46, No 11-12, 189-194.
  • Sandhya Babel, Satoshi Takizawa, Hiroaki Ozaki, H. (2002). Factors affecting seasonal variation of membrane filtration resistance caused by Chlorella Algae. Water Research 36, 1193-1202.
  • K. Fukushi, S. Babel and H. Xuan (2001). Isolation and examination of copper removing bacteria from activated sludge culture. A paper presented in Asian Water Qual 2001 Conference held in Fukuoka, Japan from September 12-15, 2001.
  • Babel, S. and Takizawa, S. (2000). A study on membrane fouling due to algal deposition. Water Science and Technology 41, No.10-11, 327-335.
  • Takizawa, S., Babel, S., Pradhan, N., Prathomrungsiyunkul, T., Suwannarit, K. and Yamazaki, S. (2000). Cross-flow ultra-filtration for surface water treatment in North Thailand. Water Science and Technology 41, No 10-11, 69-76.
  • Babel, S., Muttamara, S., Visvanathan, C., Boonthanon, S. and Mora, J. C. (1995). Preliminary investigations on ozone color removal from a solid waste landfill leachate. A paper presented at the 12th World Congress of the International Ozone Association held at Lille Grand Palais, Lille, France.
  • Visvanathan, C., Muttamara, S., Babel, S. and Ben Aim, R. (1994). Treatment of landfill leachate by crossflow microfiltration and ozonation. Separation Science and Technology , 29(3), 315-332.
  • Bhargava, S., Sharma, K., and Babel, S. (1987). Consumer acceptability of parched soybean and their biochemical and nutritional assessment. A paper presented at 7th National Convention of Food scientists and Technologists held at CFTRI, Mysore, India from February 27 to March 1, 1987.
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