TY - JOUR
T1 - Combination of iron-silicate adsorption and Thermosynechococcus sp. CL-1 cultivation for swine wastewater treatment, CO2 fixation, phycobiliproteins generation
AU - Narindri Rara Winayu, Birgitta
AU - Chen, Da Siou
AU - Hsueh, Hsin Ta
AU - Lin, Hong Ping
AU - Chu, Hsin
N1 - Funding Information:
The authors appreciatively acknowledge the Ministry of Science and Technology, Taiwan , for the research financial support with project numbers of MOST (106-2221-E-006-016-MY3) and MOST (109-2221-E-006-108) .
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - Implementation of photosynthetic microorganism, like Thermosynechococcus sp. CL-1 (TCL-1), is considered as an eco-friendly strategy for carbon dioxide fixation and nutrient utilization in wastewater. However, high level of ammoniacal nitrogen carries out toxicity to TCL-1 cell and adsorption can be applied as a pre-treatment stage. This study observed application of iron-silicate on ammoniacal nitrogen adsorption in non-sterilized and undiluted swine wastewater as pre-treatment for TCL-1 cultivation for CO2 fixation, NH4+-N degradation, and phycobiliprotein generation. The utilization of 100 g/L iron-silicate performed efficient adsorption with the quantity of 4.05 mg-N/g-Fe/Si and fitted the pseudo-first-order adsorption with R2 value of 0.993. The adsorption pre-treated swine wastewater was implemented as TCL-1 growth medium under the 1000 μE/m2/s light intensity for 12 h. The TCL-1 biomass growth, CO2 fixation, and NH4+-N removal rate during cultivation period reached to 31.67 ± 1.25; 57.54 ± 6.09; and 6.05 ± 0.20 mg/L/h respectively. Phycobiliprotein as a byproduct was generated with the productivity of 13.9 mg/g/h. Thus, coupling iron-silicate for pre-treatment step of TCL-1 cultivation in swine wastewater is eco-friendly strategy to reduce water demand for dilution, ignite phycobiliprotein accumulation during the CO2 fixation and nutrient utilization process.
AB - Implementation of photosynthetic microorganism, like Thermosynechococcus sp. CL-1 (TCL-1), is considered as an eco-friendly strategy for carbon dioxide fixation and nutrient utilization in wastewater. However, high level of ammoniacal nitrogen carries out toxicity to TCL-1 cell and adsorption can be applied as a pre-treatment stage. This study observed application of iron-silicate on ammoniacal nitrogen adsorption in non-sterilized and undiluted swine wastewater as pre-treatment for TCL-1 cultivation for CO2 fixation, NH4+-N degradation, and phycobiliprotein generation. The utilization of 100 g/L iron-silicate performed efficient adsorption with the quantity of 4.05 mg-N/g-Fe/Si and fitted the pseudo-first-order adsorption with R2 value of 0.993. The adsorption pre-treated swine wastewater was implemented as TCL-1 growth medium under the 1000 μE/m2/s light intensity for 12 h. The TCL-1 biomass growth, CO2 fixation, and NH4+-N removal rate during cultivation period reached to 31.67 ± 1.25; 57.54 ± 6.09; and 6.05 ± 0.20 mg/L/h respectively. Phycobiliprotein as a byproduct was generated with the productivity of 13.9 mg/g/h. Thus, coupling iron-silicate for pre-treatment step of TCL-1 cultivation in swine wastewater is eco-friendly strategy to reduce water demand for dilution, ignite phycobiliprotein accumulation during the CO2 fixation and nutrient utilization process.
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U2 - 10.1016/j.jwpe.2021.102406
DO - 10.1016/j.jwpe.2021.102406
M3 - Article
AN - SCOPUS:85118512167
VL - 44
JO - Journal of Water Process Engineering
JF - Journal of Water Process Engineering
SN - 2214-7144
M1 - 102406
ER -