Cultivation of microalgae and cyanobacteria for carbon fixation | |
| Author | Puttimon Kaiwan-arporn |
| Call Number | AIT Thesis no.EV-09-28 |
| Subject(s) | Microalgae Greenhouse gases |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | CO₂ is the primary greenhouse gas that most of the anthropogenic activities emit CO₂ from the combustion of fossil fuels for energy. Thus, the development of removing CO₂ should improve in terms of the cost-effective technologies as carbon sequestration and long-term safety. Photosynthesis has long been recognized to sequester anthropogenic CO₂ by growing autotrophic species such as microalgae. Conversion of CO₂ to stable carbon compounds and high commercial value products offset Carbon sequestration cost. The aim of the study is to investigate the optimum cultivation condition and the ability of CO₂ fixation. As the result, the optimum conditions for Synechocystis aquatilis TISTR8612 was composed of pH8, 30°C, 0.14%(v/v min⁻¹) and 4,000Lux. CO₂ fixation rate and CO₂ removal rate were estimated at high rate under 5% CO₂inlet which also related to the presence of chlorophyll content in the same proportion of CO₂. The analysis of chlorophyll a content was provided the highest value under 5%CO₂(v/v) as corresponding to 2,514 mgChag⁻¹biomass. Likewise, the major of fatty acid compositions was a-linolenic acid (C18:3oo3) which found under all proportion of CO₂ inlet of photobioreactor culture. This is one of useful PUFA for supplement nutrient of humans as fish oil. In brief, S.aquatilis is a priority strain of cyanobacteria to apply for CO₂ sequestration because it can survive under high percentage of CO₂ injection and has a potential of captured CO₂ to be used by photosynthesis in the whole day. |
| Year | 2009 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Annachhatre, Ajit P.; |
| Examination Committee(s) | Visvanatnan, C.;Shipin, Oleg V.; |
| Scholarship Donor(s) | Royal Thailand Government (RTG); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2009 |