PMID- 30039484
OWN - NLM
STAT- MEDLINE
DCOM- 20190828
LR  - 20200225
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 26
IP  - 19
DP  - 2019 Jul
TI  - Effects of short- and long-term exposures of humic acid on the Anammox activity 
      and microbial community.
PG  - 19012-19024
LID - 10.1007/s11356-018-2786-4 [doi]
AB  - Humic acid has a controversial effect on the biological treatment processes. 
      Here, we have investigated humic acid effects on the Anammox activity by studying 
      the nitrogen removal efficiencies in batch and continuous conditions and 
      analyzing the microbial community using Fluorescence in situ hybridization (FISH) 
      technique. The results showed that the Anammox activity was affected by the 
      presence of humic acid at a concentration higher than 70 mg/L. In fact, in the 
      presence of humic acid concentration of 200 mg/L, the Anammox activity decreased 
      to 57% in batch and under continuous condition, the ammonium removal efficiencies 
      of the reactor decreased from 78 to 41%. This reduction of Anammox activity after 
      humic acid addition was highlighted by FISH analysis which revealed a 
      considerable reduction of the abundance of Anammox bacteria and the bacteria 
      living in symbiosis with them. Furthermore, a total inhibition of Candidatus 
      Brocadia fulgida was observed. However, humic acid has promoted heterotrophic 
      denitrifying bacteria which became dominant in the reactor. In fact, the 
      evolution of the organic matter in the reactor showed that the added humic acid 
      was used as carbon source by heterotrophic bacteria which explained the shift of 
      metabolism to the favor of heterotrophic denitrifying bacteria. Accordingly, 
      humic acid should be controlled in the influent to avoid Anammox activity 
      inhibition.
FAU - Kraiem, Khadija
AU  - Kraiem K
AD  - Laboratory of Wastewater Treatment and Valorization, Water Research and 
      Technologies Center, CERTE, Technopark Tourist Route of Soliman Nabeul, PO Box 
      No. 273, 8020, Soliman, Tunisia.
AD  - Faculty of Sciences of Tunis, University of Tunis El Manar, Rommana, B.P. no. 94, 
      1068, Tunis, Tunisia.
FAU - Wahab, Mohamed Ali
AU  - Wahab MA
AUID- ORCID: 0000-0001-5236-893X
AD  - Laboratory of Wastewater Treatment and Valorization, Water Research and 
      Technologies Center, CERTE, Technopark Tourist Route of Soliman Nabeul, PO Box 
      No. 273, 8020, Soliman, Tunisia. mohamedali.wahab@certe.rnrt.tn.
FAU - Kallali, Hamadi
AU  - Kallali H
AD  - Laboratory of Wastewater Treatment and Valorization, Water Research and 
      Technologies Center, CERTE, Technopark Tourist Route of Soliman Nabeul, PO Box 
      No. 273, 8020, Soliman, Tunisia.
FAU - Fra-Vazquez, Andrea
AU  - Fra-Vazquez A
AD  - Department of Chemical Engineering, Institute of Technological Research, School 
      of Engineering, Universidade de Santiago de Compostela, Rua Lope Gomez de Marzoa 
      s/n, 15782, Santiago de Compostela, Spain.
FAU - Pedrouso, Alba
AU  - Pedrouso A
AD  - Department of Chemical Engineering, Institute of Technological Research, School 
      of Engineering, Universidade de Santiago de Compostela, Rua Lope Gomez de Marzoa 
      s/n, 15782, Santiago de Compostela, Spain.
FAU - Mosquera-Corral, Anuska
AU  - Mosquera-Corral A
AD  - Department of Chemical Engineering, Institute of Technological Research, School 
      of Engineering, Universidade de Santiago de Compostela, Rua Lope Gomez de Marzoa 
      s/n, 15782, Santiago de Compostela, Spain.
FAU - Jedidi, Naceur
AU  - Jedidi N
AD  - Laboratory of Wastewater Treatment and Valorization, Water Research and 
      Technologies Center, CERTE, Technopark Tourist Route of Soliman Nabeul, PO Box 
      No. 273, 8020, Soliman, Tunisia.
LA  - eng
PT  - Journal Article
DEP - 20180723
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Ammonium Compounds)
RN  - 0 (Humic Substances)
RN  - 7440-44-0 (Carbon)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Ammonium Compounds/*metabolism
MH  - Anaerobiosis
MH  - Bacteria, Anaerobic/*metabolism
MH  - Carbon/metabolism
MH  - Denitrification
MH  - Heterotrophic Processes
MH  - *Humic Substances
MH  - In Situ Hybridization, Fluorescence
MH  - *Microbiota
MH  - Nitrogen/metabolism
MH  - Oxidation-Reduction
OTO - NOTNLM
OT  - Anammox bacteria
OT  - Heterotrophic bacteria
OT  - Humic acid
OT  - Inhibition
OT  - Nitrogen
EDAT- 2018/07/25 06:00
MHDA- 2019/08/29 06:00
CRDT- 2018/07/25 06:00
PHST- 2018/03/15 00:00 [received]
PHST- 2018/07/17 00:00 [accepted]
PHST- 2018/07/25 06:00 [pubmed]
PHST- 2019/08/29 06:00 [medline]
PHST- 2018/07/25 06:00 [entrez]
AID - 10.1007/s11356-018-2786-4 [pii]
AID - 10.1007/s11356-018-2786-4 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2019 Jul;26(19):19012-19024. doi: 
      10.1007/s11356-018-2786-4. Epub 2018 Jul 23.