出版日期：2018-06-01 00:00:00

著者：Wai-Hong Leong; Jun-Wei Lim; Man-Kee Lam; Yoshimitsu Uemura; Chii-Dong Ho; Yeek-Chia Ho

著錄名稱、卷期、頁數：Journal of the Taiwan Institute of Chemical Engineers 87, p.216-224

摘要：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−-N and NO3−-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 (97–98%) 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.

關鍵字：Co-cultivation;Activated sludge;Microalgae;Nitrogen removal;Lipid production;Kinetic growth

語言：en

ISSN：1876-1070

期刊性質：國內

收錄於：SCI

審稿制度：否

國別：TWN

出版型式：電子版