TY - JOUR
T1 - Nutrients removal performance and sludge properties using anaerobic fermentation slurry from food waste as an external carbon source for wastewater treatment
AU - Tang, Jialing
AU - Wang, Xiaochang C.
AU - Hu, Yisong
AU - Pu, Yunhui
AU - Huang, Jin
AU - Ngo, Huu Hao
AU - Zeng, Yonggang
AU - Li, Yuyou
N1 - Funding Information:
This work was financially supported by grants from the National Program of Water Pollution Control in China (Grant no. 2013ZX07310-001 ), the Natural Science Foundation of China (Grant no. 51508450 ), the Program for Innovative Research Team in Shanxi Province (Grant no. 2013KCT-13 ), the Start-up Fund of Chengdu University (Grant no. 2081917045 ) and the Fund for Postdoctoral Scientific Research Project of China (Grant no. 2015M582760XB ).
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/1
Y1 - 2019/1
N2 - Enhancement of nitrogen and phosphate removal using thermophilic fermentation slurry from food waste (FSFW) as external carbon source was investigated. Based on the batch tests, the soluble and particulate fractions of the FSFW acted as easily and slowly biodegradable carbon sources, respectively, and the fermented slurry showed the combined nutrients removal properties of soluble and solid organics. During the long-term operation of a sequencing batch reactor (SBR) with FSFW for wastewater treatment, the sludge particle size increased obviously, the bacterial metabolic capacity improved significantly, and some functional microorganisms were enriched selectively, which significantly promoted the nitrogen removal efficiency (approximately 90%) by enhancing the anoxic denitrification and simultaneous nitrification and denitrification (SND) processes. Moreover, high phosphate removal efficiency (above 98%) was achieved through the aerobic and anoxic phosphate accumulation processes. Thus, using the FSFW as supplementary carbon source is a suitable solution for both food waste disposal and wastewater treatment.
AB - Enhancement of nitrogen and phosphate removal using thermophilic fermentation slurry from food waste (FSFW) as external carbon source was investigated. Based on the batch tests, the soluble and particulate fractions of the FSFW acted as easily and slowly biodegradable carbon sources, respectively, and the fermented slurry showed the combined nutrients removal properties of soluble and solid organics. During the long-term operation of a sequencing batch reactor (SBR) with FSFW for wastewater treatment, the sludge particle size increased obviously, the bacterial metabolic capacity improved significantly, and some functional microorganisms were enriched selectively, which significantly promoted the nitrogen removal efficiency (approximately 90%) by enhancing the anoxic denitrification and simultaneous nitrification and denitrification (SND) processes. Moreover, high phosphate removal efficiency (above 98%) was achieved through the aerobic and anoxic phosphate accumulation processes. Thus, using the FSFW as supplementary carbon source is a suitable solution for both food waste disposal and wastewater treatment.
KW - Anaerobic fermentation
KW - Carbon source
KW - Food waste
KW - Microbial community
KW - Nutrients removal
UR - http://www.scopus.com/inward/record.url?scp=85053758493&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85053758493&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.09.087
DO - 10.1016/j.biortech.2018.09.087
M3 - Article
C2 - 30265952
AN - SCOPUS:85053758493
SN - 0960-8524
VL - 271
SP - 125
EP - 135
JO - Bioresource Technology
JF - Bioresource Technology
ER -
