Prawit Kongjan

ORCID: 0000-0001-5762-3733
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About
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Research Areas
  • Anaerobic Digestion and Biogas Production
  • Biofuel production and bioconversion
  • Biodiesel Production and Applications
  • Hybrid Renewable Energy Systems
  • Microbial Metabolic Engineering and Bioproduction
  • Membrane Separation Technologies
  • Microbial Fuel Cells and Bioremediation
  • Wastewater Treatment and Nitrogen Removal
  • Carbon Dioxide Capture Technologies
  • Algal biology and biofuel production
  • Water-Energy-Food Nexus Studies
  • Thermochemical Biomass Conversion Processes
  • Odor and Emission Control Technologies
  • Microbial Metabolites in Food Biotechnology
  • Lignin and Wood Chemistry
  • Enzyme Catalysis and Immobilization
  • Industrial Gas Emission Control
  • Advanced Power Generation Technologies
  • Methane Hydrates and Related Phenomena
  • Global Energy and Sustainability Research
  • Catalysis for Biomass Conversion
  • Thermodynamic and Exergetic Analyses of Power and Cooling Systems
  • Supercapacitor Materials and Fabrication
  • Cassava research and cyanide
  • Sugarcane Cultivation and Processing

Prince of Songkla University
2016-2025

Office of the Royal Society
2022

Khon Kaen University
2022

The Royal College Of Anesthesiologists Of Thailand
2022

Thaksin University
2021

Division of Chemistry
2017

Technical University of Denmark
2008-2012

Hydrolysate was tested as substrate for hydrogen production by extreme thermophilic mixed culture (70 degrees C) in both batch and continuously fed reactors. Hydrogen produced at hydrolysate concentrations up to 25% (v/v), while no concentration of 30% indicating that high inhibiting the fermentation process. In addition, lag phase strongly influenced concentration, prolonged from approximately 11 h below 20% (v/v) 38 (v/v). The maximum yield determined assays 318.4 +/- 5.2 mL-H(2)/g-sugars...

10.1002/bit.22616 article EN Biotechnology and Bioengineering 2009-12-08

Biohydrogen effluent contains a high concentration of volatile fatty acid (VFA) mainly as butyric, acetic, lactic and propionic acids. The presence various VFAs (mixture VFAs) their cooperative effects on two-stage biohythane production need to be further studied. effect VFA concentrations in biohydrogen palm oil mill (POME) methane yield stage was investigated. obtained low loading (0.9 1.8 g/L) 15–20% times greater than that (3.6 4.7 g/L). Butyric at (8 has the individual significantly...

10.1016/j.ejbt.2017.07.006 article EN cc-by-nc-nd Electronic Journal of Biotechnology 2017-08-05

This study investigates the impact of thermophilic high solid anaerobic digestion (HS-AD) on biogas production from empty fruit bunches (EFB), focusing effects total solids (TS) loading (5–40 %), particle size reduction (0.5, 3.25, and 6 cm), co-digestion with palm oil mill effluent (POME) (10–30 % VS basis). The HS-AD at a 15–20 TS has methane yield 103.4–105.3 mL CH4/g-VS 24.6–25.1 biodegradability. Particle to 0.5 cm enhanced by 54–61 improved hydrolysis rates 45 compared untreated EFB (6...

10.1016/j.crcon.2024.100262 article EN cc-by-nc-nd Carbon Resources Conversion 2024-06-01

Hydrogen and methane production from desugared molasses by a two‐stage thermophilic anaerobic process was investigated in series of two up‐flow sludge blanket ( UASB ) reactors. The first reactor that dominated with hydrogen‐producing bacteria Thermoanaerobacterium thermosaccharolyticum aciditolerans could generate high hydrogen rate 5600 mL H 2 /day/L, corresponding to yield 132 /g volatile solid (VS). effluent the further converted second optimal 3380 CH 4 239 VS. Aceticlastic...

10.1002/elsc.201100191 article EN Engineering in Life Sciences 2012-09-28

Ethanol was produced from oil palm frond juice (OPFJ) by using Saccharomyces cerevisiae yeast cells. Experiments were operated in a batch mode varying the age between 3-4, 4-7, 7-10, 10-20 and 20-25 years. Experimental results showed that OPFJ at 3-4 years gave highest concentrations of glucose ethanol as 31.26 11.50 g/l. yield 0.39 g-ethanol/g-glucose, which estimated 76.47% theoretical (0.51 g-ethanol/g-glucose). Additionally, Monod modified Gompertz equations used to describe kinetics...

10.1016/j.egypro.2015.11.490 article EN Energy Procedia 2015-11-01

Solid state anaerobic digestion is a safe and environmental friendly technology to dispose solid wastes, could produce methane reduce the volume of wastes. Three biomass residues from palm oil mill plant including empty fruit bunches (EFB), press fiber (PPF) decanter cake (DC) were evaluated for production by digestion. Oil was mixed with inoculum at F/I ratio 2:1, 3:1, 4:1, 5:1 6:1 based on volatile (VS). Results show that among five ratios tested, 2:1 gave highest yield all residues. The...

10.1016/j.egypro.2015.11.575 article EN Energy Procedia 2015-11-01

Palm oil mill industry generates a large amount of palm effluent (POME) and empty fruit bunches (EFB) as byproducts. Biogas production from anaerobic co-digestion POME with EFB was investigated under mesophilic condition. The varied 2 to 10 gVS size 0.5-6 centimeter. High methane yield high biodegradability were achieved at the 0.2 mm 63-70% 320 mL CH4/gVS. POME:EFB ratio 4.5-7.5 3.3-6 centimeters shown acceptable value 40-50% 282 more practical for biogas due reducing cost reduction

10.1016/j.egypro.2017.10.206 article EN Energy Procedia 2017-10-01
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