Single microbial fuel cell reactor for coking wastewater treatment: Simultaneous carbon and nitrogen removal with zero alkaline consumption

2018 ◽  
Vol 621 ◽  
pp. 497-506 ◽  
Author(s):  
Di Wu ◽  
Xiaoyun Yi ◽  
Rong Tang ◽  
Chunhua Feng ◽  
Chaohai Wei
2013 ◽  
Vol 2 (2) ◽  
pp. 131-135
Author(s):  
Z Yavari ◽  
H Izanloo ◽  
K Naddafi ◽  
H.R Tashauoei ◽  
M Khazaei

Renewable energy will have an important role as a resource of energy in the future. Microbial fuel cell (MFC) is a promising method to obtain electricity from organic matter andwastewater treatment simultaneously. In a pilot study, use of microbial fuel cell for wastewater treatment and electricity generation investigated. The bacteria of ruminant used as inoculums. Synthetic wastewater used at different organic loading rate. Hydraulic retention time was aneffective factor in removal of soluble COD and more than 49% removed. Optimized HRT to achieve the maximum removal efficiency and sustainable operation could be regarded 1.5 and 2.5 hours. Columbic efficiency (CE) affected by organic loading rate (OLR) and by increasing OLR, CE reduced from 71% to 8%. Maximum voltage was 700mV. Since the microbial fuel cell reactor considered as an anaerobic process, it may be an appropriate alternative for wastewater treatment


2009 ◽  
Vol 43 (13) ◽  
pp. 5144-5149 ◽  
Author(s):  
Bernardino Virdis ◽  
Korneel Rabaey ◽  
Zhiguo Yuan ◽  
René A. Rozendal ◽  
Jürg Keller

2013 ◽  
Vol 69 (2) ◽  
pp. 293-297 ◽  
Author(s):  
Ling-ling Zhao ◽  
Tian-shun Song

A 10 L upflow microbial fuel cell (UMFC) was constructed for simultaneous carbon and nitrogen removal. During the 6-month operation, the UMFC constantly removed carbon and nitrogen, and then generated electricity with synthetic wastewater as substrate. At 5.0 mg L−1 dissolved oxygen, 100 Ω external resistance, and pH 6.5, the maximum power density (Pmax) and nitrification rate for the UMFC was 19.5 mW m−2 and 17.9 mg·(L d)−1, respectively. In addition, Pmax in the UMFC with chicken manure wastewater as substrate was 16 mW m−2, and a high chemical oxygen demand (COD) removal efficiency of 94.1% in the UMFC was achieved at 50 mM phosphate-buffered saline. Almost all ammonia in the cathode effluent was effectively degraded after biological denitrification in the UMFC cathode. The results can help to further develop pilot-scale microbial fuel cells for simultaneous carbon and nitrogen removal.


2013 ◽  
Vol 48 (7) ◽  
pp. 1080-1085 ◽  
Author(s):  
J.H. Ryu ◽  
H.L. Lee ◽  
Y.P. Lee ◽  
T.S. Kim ◽  
M.K. Kim ◽  
...  

2009 ◽  
Vol 60 (6) ◽  
pp. 1409-1418 ◽  
Author(s):  
J. Cha ◽  
C. Kim ◽  
S. Choi ◽  
G. Lee ◽  
G. Chen ◽  
...  

For simultaneous carbon and nitrogen removal via single stream, a microbial fuel cell (MFC) coupled with an aeration chamber and a bio-cathode was investigated. Without catalysts and any additional buffer, the MFC produced electricity continuously and the power density reached 1.3 W/m3 at a loading rate of 1.6 kg COD/m3 d. Simultaneously, the COD and the nitrate removal rate were 1.4 kg COD/m3 d and 67 g NO3-N/m3 d, respectively. When the hydraulic retention time was changed from 6 to 0.75 hours, the power density significantly increased from 0.2 to 10.8 W/m3 due to an increase of cathodic potential. When the aeration chamber was removed and the nitrate was injected into the cathode, the power density increased to 3.7 W/m3. At a high recirculation rate of 10 ml/min, the power density and the nitrate removal rate greatly increased to 34 W/m3 and 294 g NO3−-N/m3 d, respectively.


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