OPTIMIZATION OF POLYURETHANE FOAM CUBE IN ENHANCING THE ATTACHMENT OF MICROALGAE BIOMASS

Attachment of microalgae biomass to polyurethane foam material is believed could reduce the cost and time needed for harvesting process in making it reliable to be used in industry for biodiesel production. This paper aim to optimize the usage of polyurethane for higher attachment of microalgae biomass yield in term of it sizes and packing volume. The investigation revealed that 1.0 cm 3 polyurethane foam yield highest attached biomass (0.812 g) and it has best performance compared to 0.125 cm 3 , 8 cm 3 and 27 cm 3 with attached biomass yield 0.666 g, 0.546 g, and 0.368 g respectively. For packing volume, 6% is the best since has highest attached microalgae biomass with yield 0.753 g, compared with 2%, 4%, 8% and 10% with yield 0.426 g, 0.577 g, 0.687 g and 0.644 g attached biomass respectively. Keywords : microalgae; chlorella vulgaris, polyurethane; attached biomass.

[1]  N. R. A. Filho,et al.  Concepts and studies on lipid and pigments of microalgae: A review , 2016 .

[2]  D. G. Allen,et al.  Factors affecting algae biofilm growth and lipid production: A review , 2015 .

[3]  Ledwoch Katarzyna,et al.  Non-enclosure methods for non-suspended microalgae cultivation: literature review and research needs , 2015 .

[4]  A. Mujumdar,et al.  Advances and Challenges on Algae Harvesting and Drying , 2015 .

[5]  M. Melkonian,et al.  Application of a prototype-scale Twin-Layer photobioreactor for effective N and P removal from different process stages of municipal wastewater by immobilized microalgae. , 2014, Bioresource technology.

[6]  Zhiyou Wen,et al.  Development of a rotating algal biofilm growth system for attached microalgae growth with in situ biomass harvest. , 2013, Bioresource technology.

[7]  Gabriel Jaime Colmenares Roldan,et al.  Effect of Carbon Dioxide Concentration on the Growth Response of Chlorella vulgaris Under Four Different Led Illumination , 2013 .

[8]  Halil Berberoglu,et al.  Reduction of water and energy requirement of algae cultivation using an algae biofilm photobioreactor. , 2012, Bioresource technology.

[9]  Jun-Wei Lim,et al.  Nitrogen removal in moving bed sequencing batch reactor using polyurethane foam cubes of various sizes as carrier materials. , 2011, Bioresource technology.

[10]  P. Abreu,et al.  Effects of flocculants on lipid extraction and fatty acid composition of the microalgae Nannochloropsis oculata and Thalassiosira weissflogii , 2011 .

[11]  Jianlong Wang,et al.  Comparison of polyurethane foam and biodegradable polymer as carriers in moving bed biofilm reactor for treating wastewater with a low C/N ratio. , 2011, Chemosphere.

[12]  Andrew Hoadley,et al.  Dewatering of microalgal cultures : a major bottleneck to algae-based fuels , 2010 .

[13]  Y. Chisti.  Biodiesel from microalgae. , 2007, Biotechnology advances.

[14]  P. Golla,et al.  Three years of full-scale captorR process operation at Moundsville WWTP , 1994 .

[15]  Hui Wang,et al.  Attached cultivation technology of microalgae for efficient biomass feedstock production. , 2013, Bioresource technology.

[16]  Zhiyou Wen,et al.  Development of an attached microalgal growth system for biofuel production , 2009, Applied Microbiology and Biotechnology.