The current study is focused on understanding the operational mechanism of an integrated constructed wetlandmicrobial fuel cell (CW-MFC) reactor emphasizing fecal coliform (FC) removal. Few studies are available in the literature investigating the inherent mechanisms of pathogen inactivation in a CW-MFC system. Raw domestic wastewater was treated in three vertical reactors, one planted constructed wetland (R1), one planted CW-MFC (R2), and one unplanted CW-MFC (R3). Spatial analysis of treated effluents showed a considerable amount of organics and fecal coliform removal at the vicinity of the anode in R2. Assessment of the microbial population inside all the reactors revealed that EABs (Pirmicutes, Bacteroidetes, and Actinobacteria) were more abundant in R2 compared to R1 and R3. During the activity study, biomass obtained from R2 showed a maximum substrate utilization rate of 1.27 mg COD mgVSS-1 d-1. Kinetic batch studies were carried out for FC removal in all the reactors, and the maximum first order FC removal rate was obtained at the anode of R2 as 2.13 d-1 when operated in closed circuit mode. This value was much higher than the natural die-off rate of FCs in raw wastewater which was 1.16 d-1. Simultaneous bioelectricity monitoring inferred that voltage generation can be correlated to faster FC inactivation, which was probably due to EABs outcompeting other exogenous microbes in a preferable anaerobic environment with the presence of an anode. Reactor R2 was found to be functioning as a symbiotic bio-electrochemical mesocosm.
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Arias, Andrea
;
Rama, Manuel
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Rama, Manuel
;
Gonzalez-Garcia, Sara
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Gonzalez-Garcia, Sara
;
Feijoo, Gumersindo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
机构:
Turkey Sci & Tech Res Council, Marmara Res Ctr, TUBITAK, TR-41470 Gebze, Kocaeli, TurkeyTurkey Sci & Tech Res Council, Marmara Res Ctr, TUBITAK, TR-41470 Gebze, Kocaeli, Turkey
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Bei, Er
;
Wu, Xiaomei
论文数: 0引用数: 0
h-index: 0
机构:
China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Wu, Xiaomei
;
Qiu, Yu
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Qiu, Yu
;
Chen, Chao
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Res Inst Environm Innovat Suzhou, Suzhou 215163, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Chen, Chao
;
Zhang, Xiaojian
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Res Inst Environm Innovat Suzhou, Suzhou 215163, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Arias, Andrea
;
Rama, Manuel
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Rama, Manuel
;
Gonzalez-Garcia, Sara
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
Gonzalez-Garcia, Sara
;
Feijoo, Gumersindo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, SpainUniv Santiago de Compostela, CRETUS Inst, Dept Chem Engn, E-15782 Santiago De Compostela, Galicia, Spain
机构:
Turkey Sci & Tech Res Council, Marmara Res Ctr, TUBITAK, TR-41470 Gebze, Kocaeli, TurkeyTurkey Sci & Tech Res Council, Marmara Res Ctr, TUBITAK, TR-41470 Gebze, Kocaeli, Turkey
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Bei, Er
;
Wu, Xiaomei
论文数: 0引用数: 0
h-index: 0
机构:
China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Wu, Xiaomei
;
Qiu, Yu
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Qiu, Yu
;
Chen, Chao
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Res Inst Environm Innovat Suzhou, Suzhou 215163, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Chen, Chao
;
Zhang, Xiaojian
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
Res Inst Environm Innovat Suzhou, Suzhou 215163, Peoples R ChinaTsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China