A system combining microbial fuel cell with photobioreactor for continuous domestic wastewater treatment and bioelectricity generation

Abstract

A coupled system consisting of an upflow membrane-less microbial fuel cell (upflow ML-MFC) and a photobioreactor was developed, and its effectiveness for continuous wastewater treatment and electricity production was evaluated. Wastewater was fed to the upflow ML-MFC to remove chemical oxygen demand (COD), phosphorus and nitrogen with simultaneous electricity generation. The effluent from the cathode compartment of the upflow ML-MFC was then continuously fed to an external photobioreactor for removing the remaining phosphorus and nitrogen using microalgae. Alone, the upflow ML-MFC produces a maximum power density of 481 mW/m³, and obtains 77.9% COD, 23.5% total phosphorus (TP) and 97.6% NH₄⁺-N removals. When combined with the photobioreactor, the system achieves 99.3% TP and 99.0% NH₄⁺-N total removal. These results show both the effectiveness and the potential application of the coupled system to continuously treat domestic wastewater and simultaneously generate electricity and biomass.

Keywords

wastewater treatment / microbial fuel cell / photobioreactor / microalgae / bioelectricity

References

[1] LoganB. E., HamelersB., RozendalR. A., SchrorderU., KellerJ., FreguiaS., AeltermanP., VerstraeteW., RabaeyK.. Microbial fuel cells: Methodology and technology [J]. Environmental Science & Technology, 2006, 40(17): 5181-5192

[2] JadhavG. S., GhangrekarM. M.. Performance of microbial fuel cell subjected to variation in pH, temperature, external load and substrate concentration [J]. Bioresource Technology, 2009, 100(2): 717-723

[3] LiuH., LoganB. E.. Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane [J]. Environmental Science & Technology, 2004, 38(14): 4040-4046

[4] HolzmanD. C.. Microbe power![J]. Environmental Health Perspectives, 2005, 113(11): 754-757

[5] LiuH., RamnarayananR., LoganB. E.. Production of electricity during wastewater treatment using a single chamber microbial fuel cell [J]. Environmental Science & Technology, 2004, 38(7): 2281-2285

[6] LuN., ZhouS.-g., ZhuangL., ZhangJ.-t., NiJ.-ren.. Electricity generation from starch processing wastewater using microbial fuel cell technology [J]. Biochemical Engineering Journal, 2009, 43(3): 246-251

[7] XieS., LiangP., ChenY., XiaX., HuangXia.. Simultaneous carbon and nitrogen removal using an oxic/anoxic-biocathode microbial fuel cells coupled system [J]. Bioresource Technology, 2011, 102(1): 348-354

[8] YuC.-p., LiangZ.-h., DasA., HuZ.-qiang.. Nitrogen removal from wastewater using membrane aerated microbial fuel cell techniques [J]. Water Research, 2011, 45(3): 1157-1164

[9] VirdisB., RabaeyK., YuanZ., KellerJ.. Microbial fuel cells for simultaneous carbon and nitrogen removal [J]. Water Research, 2008, 42(12): 3013-3024

[10] MartinezM. E., SanchezS., JimenezJ. M., el YousfiF., MunozL.. Nitrogen and phosphorus removal from urban wastewater by the microalga Scenedesmus obliquus [J]. Bioresource Technology, 2000, 73(3): 263-272

[11] Di TerminiI., PrassoneA., CattaneoC., RovattiM.. On the nitrogen and phosphorus removal in algal photobioreactors [J]. Ecological Engineering, 2011, 37(6): 976-980

[12] DuZ.-w., LiQ.-h., TongM., LiS.-h., LiH.-ran.. Electricity generation using membrane-less microbial fuel cell during wastewater treatment [J]. Chinese Journal Of Chemical Engineering, 2008, 16(5): 772-777

[13] GhangrekarM. M., ShindeV. B.. Performance of membrane-less microbial fuel cell treating wastewater and effect of electrode distance and area on electricity production [J]. Bioresource Technology, 2007, 98(15): 2879-2885

[14] JangJ. K., PhamT. H., ChangI. S., KangK. H., MoonH., ChoK. S., KimB. H.. Construction and operation of a novel mediator- and membrane-less microbial fuel cell [J]. Process Biochemistry, 2004, 39(8): 1007-1012

[15] LoganB. E., ChengS., WatsonV., EstadtG.. Graphite fiber brush anodes for increased power production in air-cathode microbial fuel cells [J]. Environmental Science & Technology, 2007, 41(9): 3341-3346

[16] FengY.-j., YangQ., WangX., LoganB. E.. Treatment of carbon fiber brush anodes for improving power generation in air-cathode microbial fuel cells [J]. Journal Of Power Sources, 2010, 195(7): 1841-1844

[17] GB 7479-87. Water quality-Determination of ammonium-Nessler’s reagent colorimetric method [S]. (in Chinese)

[18] WeiF.-sheng.Water and wastewater monitoring and analysis methods [M], 2002BeijingChina Environmental Science Press243-245

[19] HJ/T 399-2007. Water quality-Determination of the chemical oxygen demand-Fast digestion-Spectrophotometric method [S]. (in Chinese)

[20] OhS., MinB., LoganB. E.. Cathode performance as a factor in electricity generation in microbial fuel cells [J]. Environmental Science & Technology, 2004, 38(18): 4900-904

[21] LiuH., ChengS. A., LoganB. E.. Power generation in fed-batch microbial fuel cells as a function of ionic strength, temperature, and reactor configuration [J]. Environmental Science & Technology, 2005, 39(14): 5488-5493

[22] HeS.-b., XueGang.. Algal-based immobilization process to treat the effluent from a secondary wastewater treatment plant (WWTP) [J]. Journal Of Hazardous Materials, 2010, 178(1/2/3): 895-899

[23] PowellN., ShiltonA. N., PrattS., ChistiY.. Luxury uptake of phosphorus by microalgae in full-scale waste stabilisation ponds [J]. Water Science & Technology, 2011, 63(4): 704-709

[24] ChistiY.. Biodiesel from microalgae [J]. Biotechnology Advances, 2007, 25(3): 294-306

[25] YuanX.-z., ShiX.-s., ZhangD.-l., QiuY.-l., GuoR.-b., WangL.-sheng.. Biogas production and microcystin biodegradation in anaerobic digestion of blue algae [J]. Energy & Environmental Science, 2011, 4(4): 1511-1515

[26] MussgnugJ. H., KlassenV., SchlueterA., KruseO.. Microalgae as substrates for fermentative biogas production in a combined biorefinery concept [J]. Journal of Biotechnology, 2010, 150(1): 51-56