FN Archimer Export Format
PT J
TI Nitrogen and organic matter removal and enzyme activities in constructed wetlands operated under different hydraulic operating regimes
BT 
AF LI, Meng
   LIANG, Zhenlin
   CALLIER, Myriam
   ROQUE D'ORBCASTEL, Emmanuelle
   MA, Xiaona
   SUN, Linlin
   LI, Xian
   WANG, Shunkui
   SONG, Xiefa
   LIU, Ying
AS 1:1;2:1;3:2;4:3;5:4,5;6:1;7:4,6;8:7;9:1;10:4,8;
FF 1:;2:;3:PDG-RBE-MARBEC-LAAAS;4:PDG-ODE-LITTORAL-LERLR;5:;6:;7:;8:;9:;10:;
C1 Ocean Univ China, Fisheries Coll, Qingdao 266001, Peoples R China.
   Univ Montpellier, UMR MARBEC, Ifremer, IRD,CNRS, Chemin Maguelone, F-34250 Palavas Les Flots, France.
   Univ Montpellier, UMR MARBEC, Ifremer, IRD,CNRS, Ave Jean Monnet,CS 30171, F-34203 Sete, France.
   Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
   Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
   Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao 266071, Peoples R China.
   Shandong Oriental Ocean Sci Tech Co Ltd, Yantai 264003, Peoples R China.
   Dalian Ocean Univ, Dalian 116023, Peoples R China.
C2 UNIV OCEAN CHINA, CHINA
   IFREMER, FRANCE
   IFREMER, FRANCE
   CHINESE ACAD SCI, CHINA
   UNIV CHINESE ACAD SCI, CHINA
   CHINESE ACAD SCI, CHINA
   SHANDONG ORIENTAL OCEAN SCI TECH CO LTD, CHINA
   UNIV DALIAN OCEAN, CHINA
SI PALAVAS
   SETE
SE PDG-RBE-MARBEC-LAAAS
   PDG-ODE-LITTORAL-LERLR
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
   copubli-sud
IF 3.022
TC 13
UR https://archimer.ifremer.fr/doc/00445/55632/57278.pdf
LA English
DT Article
DE ;Mariculture wastewater;Constructed wetland;Salicornia bigelovii;Enzyme activity;Removal performance
AB Constructed wetlands (CWs) are environmentally-friendly methods for mariculture wastewater purification. The hydraulic regime is a key factor in the effectiveness of sub-surface flow CW treatment. The objectives of this study were to investigate the effects of five hydraulic operating regimes (i.e. Intermittent, Continuous, Batch I, Batch II and Batch III) on the purification performance of CW treated with mariculture wastewater and to assess the correlations between enzyme activities (i.e. urease, dehydrogenase) and purification performance of CW. Fifteen pilot sub-surface CWs with Salicornia bigelovii were investigated for the performance of CW as well as urease activity (UA) and dehydrogenase activity (DA). Over the experiment, removal efficiencies of TAN, NO3−-N, TN and COD under five hydraulic operating regimes were 26.6 to 37.2%, −6.0 to 16.5%, 9.4 to 16.8% and 33.9 to 44.6% respectively, corresponding to removal rates of 147.6 to 456.9 mg m−2 d−1, −18.1 to 229.2 mg m−2 d−1, 174.0 to 603.6 mg m−2 d−1 and 501.9 to 1421.6 mg m−2 d−1 respectively. CW with a Batch III operating regime had the best treatment performance, with mean removal efficiencies of TAN, NO3−-N, TN and COD of 37.2%, 16.5%, 14.9% and 34.0% respectively, with the corresponding removal rates of 456.9, 229.2, 603.6 and 873.6 mg m−2 d−1. As for enzyme activities, the UA was significantly higher in CW under Batch II than in Intermittent and Continuous operating regimes and the DA in CW with Batch I was significantly higher than under an Intermittent operating regime. UA and DA had significant positive correlations with COD concentrations but negative correlations with TAN and TN concentrations. The correlation analysis results showed that UA and DA can be an important indicator in evaluating removal performance of CW with Salicornia bigelovii in marine aquaculture wastewater treatment. 
PY 2018
PD NOV
SO Aquaculture
SN 0044-8486
PU Elsevier Science Bv
VL 496
UT 000440660000029
BP 247
EP 254
DI 10.1016/j.aquaculture.2018.06.016
ID 55632
ER

EF