TY  - JOUR
AV  - none
TI  - A sugarcane-bagasse-based adsorbent employed for mitigating eutrophication threats and producing biodiesel simultaneously
ID  - scholars11350
N2  - Eutrophication is an inevitable phenomenon, and it has recently become an unabated threat. As a positive, the thriving microalgal biomass in eutrophic water is conventionally perceived to be loaded with myriad valuable biochemical compounds. Therefore, a sugarcane-bagasse-based adsorbent was proposed in this study to harvest the microalgal biomass for producing biodiesel. By activating the sugarcane-bagasse-based adsorbent with 1.5 M of H2SO4, a highest adsorption capacity of 108.9 ± 0.3 mg/g was attained. This was fundamentally due to the surface potential of the 1.5 M H2SO4 acid-modified sugarcane-bagasse-based adsorbent possessing the lowest surface positivity value as calculated from its point of zero charge. The adsorption capacity was then improved to 192.9 ± 0.1 mg/g by stepwise optimizing the adsorbent size to 6.7-8.0 mm, adsorption medium pH to 2-4, and adsorbent dosage to 0.4 g per 100mLof adsorption medium. This resulted in 91.5 microalgae removal efficiency. Excellent-quality biodiesel was also obtained as reflected by the fatty acid methyl ester (FAME) profile, showing the dominant species of C16-C18 encompassing 71 of the overall FAMEs. The sustainability of harvesting microalgal biomass via an adsorption-enhanced flocculation processes was also evidenced by the potentiality to reuse the spent acid-modified adsorbent. © 2019 by the authors.
N1  - cited By 10
IS  - 9
PB  - MDPI AG
SN  - 22279717
Y1  - 2019///
VL  - 7
JF  - Processes
A1  - Basri, W.N.F.W.
A1  - Daud, H.
A1  - Lam, M.K.
A1  - Cheng, C.K.
A1  - Da Oh, W.
A1  - Tan, W.N.
A1  - Shaharun, M.S.
A1  - Yeong, Y.F.
A1  - Paman, U.
A1  - Kusakabe, K.
A1  - Kadir, E.A.
A1  - Show, P.L.
A1  - Lim, J.W.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072182795&doi=10.3390%2fpr7090572&partnerID=40&md5=02dc84ef63e4cb61ab21ecc353234da0
ER  -