Photosynthetic bacteria (PSB) wastewater treatment is a new method with great resource recovery potential. In order to improve the biomass and valuable resources of bacteria in the wastewater treatment of photosynthetic bacteria, the effects of different light conditions on the efficiency of Proteiniphilum acetatigenes PSB-W in the treatment of sugar wastewater and the production of bacteria and carotenoids in the wastewater were analyzed from three aspects of light source, light intensity and light period. Under the principle of priority of pollutant removal efficiency, the red LED light was selected with the light intensity of 4000 Lux, 16L (light):8D (dark) for light cycle, and the best efficiency of wastewater removal and bacterial yield were obtained when the culture time was 3d, Chemical oxygen demand (COD) removal rate was 80.9%, bacterial OD600 was 0.907 ± 0.023, carotenoid yield was 7.83 ± 0.27 mg/L, respectively. These results show that PSB-W strains can provide more biomass and valuable substances in suitable environment. It provides a theoretical basis for the realization of wastewater recycling.
Cite this paper
Hu, Q. and Gao, X. (2020). Effects of Light on Saccharide Wastewater Treatment and Resource Recovery by Proteiniphilum acetatigenes PSB-W. Open Access Library Journal, 7, e6348. doi: http://dx.doi.org/10.4236/oalib.1106348.
Yang, A., Peng, M., Zhang, G., et al. (2018) Effects of Light-Oxygen Conditions on Microbial Community of PSB during Treating High Ammonia Wastewater. Process Biochemistry, 72, 137-142. https://doi.org/10.1016/j.procbio.2018.06.003
Eroglu, E., Eroglu, I., Gündüz, U., et al. (2008) Effect of Clay Pretreatment on Photofermentative Hydrogen Production from Olive Mill Wastewater. Bioresource Technology, 99, 6799-6808. https://doi.org/10.1016/j.biortech.2008.01.076
Aksu, Z. and Eren, A.T. (2005) Carotenoids Production by the Yeast Rhodotorula Mucilaginosa: Use of Agricultural Wastes as a Carbon Source. Process Biochemistry, 40, 2985-2991. https://doi.org/10.1016/j.procbio.2005.01.011
Natália, M., Paz, E.D. and Maraschin, M. (2012) Supercritical Anti-Solvent Precipitation of Carotenoid Fraction from Pink Shrimp Residue: Effect of Operational Conditions on Encapsulation Efficiency. The Journal of Supercritical Fluids, 66, 342-349. https://doi.org/10.1016/j.supflu.2011.08.006
George, Basil and Pancha (2014) Effects of Different Media Composition, Light Intensity and Photoperiod on Morphology and Physiology of Freshwater Microalgae Ankistrodesmus Falcatus—A Potential Strain for Biofuel Production. Bioresource Technology, 171, 367-374. https://doi.org/10.1016/j.biortech.2014.08.086
Sakaki, H., Nakanishi, T. and Tada, A. (2001) Activation of Torularhodin Production by Rhodotorula Glutinis Using Weak White Light Irradiation. Journal of Bioscience and Bioengineering, 92, 294-297.
Zhou, Q., Zhang, P. and Zhang, G. (2015) Biomass and Pigments Production in PSB Wastewater Treatment: Effects of Light Sources. Bioresource Technology, 179, 505-509.
Lee, C.S., Lee, S.A., Ahn, C., et al. (2015) Effects of Photoperiod on Nutrientremoval, Biomass Production, and Algal-Bacterial Population Dynamics in Labscale Photobioreactors Treating Municipal Wastewater. Water Research, 68, 680-691.
Wahidin, S., Idris, A. and Shaleh, S. (2013) The Influence of Light Intensity and Photoperiod on the Growth and Lipid Content of Microalgae Nannochloropsis sp. Bioresource Technology, 129, 7-11. https://doi.org/10.1016/j.biortech.2012.11.032
Kuo, F., Chien, Y. and Chen, C. (2012) Effects of Light Sources on Growth and Carotenoid Content of Photosynthetic Bacteria Rhodopseudomonas palustris. Bioresource Technology, 113, 315-318. https://doi.org/10.1016/j.biortech.2012.01.087
Hosseini, F., Malekzadeh, F., Amirmozafari, N., et al. (2007) Biodegradation of Anionic Surfactant by Isolated Bacteriafrom Activated Sludge. International Journal of Environmental Science and Technology, 4, 127-132.
Li, X., Wang, Y., Zhang, S., et al. (2011) Effects of Light/Dark Cycle, Mixing Pattern and Partial Pressure of H2 on Biohydrogen Production by Rhodobacter phaeroides ZX-5. Bioresource Technology, 102, 1142-1148.
Simionato, D., Sforza, E., Corteggiani, C.E., et al. (2011) Acclimation of Nannochloropsis gaditana to Different Illumination Regimes: Effects on Lipids Accumulation. Bioresource Technology, 102, 6026-6032.
Yang, A., Zhang, G., Lu, P., et al. (2017) Enhancing Protein to Extremely High Content in PSB during Biogas Slurry Treatment. Bioresource Technology, 245, 1277-1281. https://doi.org/10.1016/j.biortech.2017.08.109
Bernacchi, C.J., Portis, A.R., Nakano, H., et al. (2002) Temperature Responses of Mesophyll Conductance Implications for the Determination of Rubisco Enzyme Kinetics and for Limitation to Photosynthesis in Vivo. Plant Physiology, 130, 1992-1998.
Kaewsuk, J., Thorasampan, W., Thanuttamavong, M., et al. (2010) Kinetic Development and Evaluation of Membrane Sequencing Batch Reactor (MSBR) with Mixed Cultures PSB for Dairy Wastewater Treatment. Journal of Environmental Management, 91, 1161-1168. https://doi.org/10.1016/j.jenvman.2010.01.012