TY  - JOUR
Y1  - 2018///
JF  - Journal of the Taiwan Institute of Chemical Engineers
A1  - Leong, W.-H.
A1  - Lim, J.-W.
A1  - Lam, M.-K.
A1  - Uemura, Y.
A1  - Ho, C.-D.
A1  - Ho, Y.-C.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85045013503&doi=10.1016%2fj.jtice.2018.03.038&partnerID=40&md5=99562d572497682bf387269a7ed28707
VL  - 87
N2  - The symbiotic relationships between activated sludge and microalgae were explored for bio-remediating nitrogen-rich wastewater and producing lipid-based biofuel simultaneously. Various inoculation ratios of activated sludge to microalgae (AS:MA) biomasses were employed to unveil the mechanism of NH4 +-N removal in relation to lipid production from algal-bacterial biomass. The presence of nitrifiers in converting NH4 +-N into oxidized nitrogen (NO2 â??-N and NO3 â??-N) had greatly enhanced the total nitrogen removal in the co-cultivation bioreactors as compared with the individual culture of either activated sludge or microalgae. Accordingly, achieving near complete nitrogen removal (97â??98) when the bioreactors were inoculated with AS:MA ratios of 1:0.75 and beyond. The kinetic growths of co-cultivated activated sludge and microalgae biomasses were also investigated using Verhulst model; demonstrating a significant increase of specific biomass growth rate with increasing of initial microalgae inoculation ratio. The AS:MA ratio of 1:0.75 was considered optimum for the symbiotic algal-bacterial interactions, attaining the highest lipid yield of 130 mg/L and flocculation efficiency of 42 which would aid the biomass harvesting process. © 2018 Taiwan Institute of Chemical Engineers
ID  - scholars10277
KW  - Algae; Biomass; Bioreactors; Bioremediation; Microorganisms
KW  -  Activated sludge; Co-cultivation; Kinetic growth; Lipid productions; Micro-algae
KW  -  Nitrogen removal
PB  - Taiwan Institute of Chemical Engineers
SN  - 18761070
EP  - 224
AV  - none
N1  - cited By 63
SP  - 216
TI  - Co-cultivation of activated sludge and microalgae for the simultaneous enhancements of nitrogen-rich wastewater bioremediation and lipid production
ER  -