TY - JOUR
T1 - Combination of electrolysis and microalgae cultivation for beneficial reuse ofertilizer wastewater from poultry manure anaerobic digestion effluent
AU - Wang, Xinfeng
AU - Lin, Lu
AU - Zhang, Li
AU - de Souza, Raquel
AU - Lu, Haifeng
AU - Liu, Zhidan
AU - Duan, Na
AU - Dong, Taili
AU - Zhang, Yuanhui
AU - Li, Baoming
N1 - Publisher Copyright:
© 2020 Desalination Publications. All rights reserved.
PY - 2020/4
Y1 - 2020/4
N2 - Poultry manure anaerobic digestion effluent (PMADE) contained a high content of ammonia nitrogen (NH4+ –N), which should be treated properly before discharge. However, the mechanism of electrolysis in treating high NH4+ –N (over 1,500 mg L–1) wastewater has never been studied. In this study, fertilizer wastewater from PMADE with high content of NH4+ –N (over 3,000 mg L–1) and low carbon/ nitrogen (C/N) ratio was treated via electrolysis and microalgae. Results showed the highest removal of NH4+ –N, total organic carbon (TOC) and inorganic carbon (IC) in electrolysis were 47%, 76%, and 93%, respectively. Quadratic functions are suitable to simulate NH4+ –N removal of FW (coefficient is over 0.95). The removal efficiency of NH4+ –N was 10%–65% during microalgae cultivation. The removal of NH4+ –N, total phosphorus (TP), IC, and TOC in fertilizer wastewater by the combination of electrolysis and microalgae cultivation achieved 96%, 63%, 95%, and 52%, respectively. Chlorella sp. used 3.11% carbon, 15.0% nitrogen, and 13.5% phosphorus in the FW as substrates. This study provided an alternative approach to treat and reuse high-ammonia containing wastewater.
AB - Poultry manure anaerobic digestion effluent (PMADE) contained a high content of ammonia nitrogen (NH4+ –N), which should be treated properly before discharge. However, the mechanism of electrolysis in treating high NH4+ –N (over 1,500 mg L–1) wastewater has never been studied. In this study, fertilizer wastewater from PMADE with high content of NH4+ –N (over 3,000 mg L–1) and low carbon/ nitrogen (C/N) ratio was treated via electrolysis and microalgae. Results showed the highest removal of NH4+ –N, total organic carbon (TOC) and inorganic carbon (IC) in electrolysis were 47%, 76%, and 93%, respectively. Quadratic functions are suitable to simulate NH4+ –N removal of FW (coefficient is over 0.95). The removal efficiency of NH4+ –N was 10%–65% during microalgae cultivation. The removal of NH4+ –N, total phosphorus (TP), IC, and TOC in fertilizer wastewater by the combination of electrolysis and microalgae cultivation achieved 96%, 63%, 95%, and 52%, respectively. Chlorella sp. used 3.11% carbon, 15.0% nitrogen, and 13.5% phosphorus in the FW as substrates. This study provided an alternative approach to treat and reuse high-ammonia containing wastewater.
KW - Ammonia nitrogen
KW - Electrochemical oxidation
KW - Fertilizer wastewater
KW - Microalgae
UR - http://www.scopus.com/inward/record.url?scp=85098733969&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85098733969&partnerID=8YFLogxK
U2 - 10.5004/dwt.2020.25042
DO - 10.5004/dwt.2020.25042
M3 - Article
AN - SCOPUS:85098733969
SN - 1944-3994
VL - 183
SP - 139
EP - 148
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
ER -