Insights into the influence of organic and salinity on the two-stage partial nitritation/anammox process in treating food waste digestate DOI

Yunzhi Qian,

Wenkang Zhang, Yilin Wang

et al.

Environmental Technology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 16

Published: Dec. 3, 2024

Food waste digestate (FWD), which contains significant levels of ammonium, organic matter, and salinity, can interfere with treatment performance the anammox process. In this study, a two-stage partial nitritation/anammox (PN/A) process was established to investigate nitrogen removal microbial response in treating FWD at loading rate (NLR) 0.27 ± 0.02 gN/L/d. High concentrations free ammonia (58 mg/L) nitrous acid (0.3 facilitated initiation nitritation (PN) process, achieving an average NO2−/NH4+ ratio 1.28 0.08. For (NRR) 0.72 0.13 gN/L/d achieved. Free (NH3) stripping, Anammox pathway, denitrification pathway contributed 4.1 0.3%, 5.1 0.2%, 84.0 1.5% total removal, respectively. Nitrosomonas, salt-tolerant ammonia-oxidizing bacteria (AOB), enriched 1.0%, while Nitrospira, nitrite-oxidizing (NOB), effectively suppressed 0.003%. The genera unclassified_f__Brocadiaceae (13.9%) Candidatus_Kuenenia (4.8%) dominated pathway. high enrichment ensured stable operation 0.62 0.11% even initial FA inhibition concentration 40 mg/L. Additionally, norank_f_A4b (1.34%) norank_f_norank_o_SBR1031 (52.1%) hydrolysis refractory matter. Denitrifying bacteria, including Hyphomicrobium, Truepera, unclassified_c__Alphaproteobacteria, played roles nitrate CODconsumed/NO3−removed 2.7 0.2. This study highlights application PN/A for rapid startup effective from FWD.

Language: Английский

Deciphering intricate associations between vigorous development and novel metabolic preferences of partial denitrification/anammox granular consortia within mainstream municipal wastewater DOI
Xiaonong Zhang, Zixuan Zhu, Xingxing Zhang

et al.

Bioresource Technology, Journal Year: 2025, Volume and Issue: 419, P. 132074 - 132074

Published: Jan. 13, 2025

Language: Английский

Citations

0
Mechanistic insights into substituent-induced hydrolytic debromination and electron flow of bromophenols under nitrate-reducing conditions DOI
Yunhao Xu, Jing Wang,

Qiang Chi

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137767 - 137767

Published: Feb. 27, 2025

Language: Английский

Citations

0
Anaerobic treatment of refractory industrial organic wastewater: A review of bioenergy recovery and low-carbon nitrogen removal toward carbon neutrality DOI
Zixuan Deng,

Chengde Sun,

Guangyi Ma

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107515 - 107515

Published: March 23, 2025

Language: Английский

Citations

0
Unveiling the transformation of organics in leachate during the composite anode-supported electro-hybrid ozonation-coagulation (CA-E-HOC) treatment: Significance of synergy among chlorine, coagulant, and ozone DOI
Chao Yang, Yinying Zhu, Wei Yang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154213 - 154213

Published: July 22, 2024

Language: Английский

Citations

3
KOH-modified biochar enhances nitrogen metabolism of the chloroquine phosphate-disturbed anammox: physical binding, EPS modulation and versatile metabolic hierarchy DOI
Rui Hu, Xue Chen,

Yule Han

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 482, P. 136467 - 136467

Published: Nov. 13, 2024

Language: Английский

Citations

3
Microalgae biofilm barrier to assist the simultaneous nitrogen and phosphorus removal in anammox: Molecular mechanism on sludge granulation and microbial metabolism DOI
Xue Chen, Rui Hu,

Mengting Xia

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157887 - 157887

Published: Nov. 1, 2024

Language: Английский

Citations

3
Optimizing the placement of medical wastewater outlets in sewer systems to reduce chemical consumption at wastewater treatment plants DOI
Jingyi Zhang,

Zuxin Xu,

Wenhai Chu

et al.

Water Research, Journal Year: 2024, Volume and Issue: 264, P. 122205 - 122205

Published: Aug. 4, 2024

Language: Английский

Citations

2
Insights into the influence of organic and salinity on the two-stage partial nitritation/anammox process in treating food waste digestate DOI

Yunzhi Qian,

Wenkang Zhang, Yilin Wang

et al.

Environmental Technology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 16

Published: Dec. 3, 2024

Food waste digestate (FWD), which contains significant levels of ammonium, organic matter, and salinity, can interfere with treatment performance the anammox process. In this study, a two-stage partial nitritation/anammox (PN/A) process was established to investigate nitrogen removal microbial response in treating FWD at loading rate (NLR) 0.27 ± 0.02 gN/L/d. High concentrations free ammonia (58 mg/L) nitrous acid (0.3 facilitated initiation nitritation (PN) process, achieving an average NO2−/NH4+ ratio 1.28 0.08. For (NRR) 0.72 0.13 gN/L/d achieved. Free (NH3) stripping, Anammox pathway, denitrification pathway contributed 4.1 0.3%, 5.1 0.2%, 84.0 1.5% total removal, respectively. Nitrosomonas, salt-tolerant ammonia-oxidizing bacteria (AOB), enriched 1.0%, while Nitrospira, nitrite-oxidizing (NOB), effectively suppressed 0.003%. The genera unclassified_f__Brocadiaceae (13.9%) Candidatus_Kuenenia (4.8%) dominated pathway. high enrichment ensured stable operation 0.62 0.11% even initial FA inhibition concentration 40 mg/L. Additionally, norank_f_A4b (1.34%) norank_f_norank_o_SBR1031 (52.1%) hydrolysis refractory matter. Denitrifying bacteria, including Hyphomicrobium, Truepera, unclassified_c__Alphaproteobacteria, played roles nitrate CODconsumed/NO3−removed 2.7 0.2. This study highlights application PN/A for rapid startup effective from FWD.

Language: Английский

Citations

0