The Electrical Properties and Changes on the Substrates of Microbial Fuel Cells Using Excess Sludge

2014 ◽  
Vol 535 ◽  
pp. 141-144
Author(s):  
Xiao Qin Zhao ◽  
Xiao Jie Sun
Keyword(s):  
Fuel Cells ◽  
Anaerobic Digestion ◽  
Microbial Fuel Cells ◽  
Control Device ◽  
Anaerobic Sludge ◽  
Excess Sludge ◽  
Test Volume ◽  
Significant Difference ◽  
Nacl Concentration ◽  
Anode Area

A single-chamber and membrane-less microbial fuel cells (MFC) was successfully started up using anaerobic sludge as inoculums without any nutrient elements for 20 d. Under 30 °C, excess sludge SS was about 21000 mg·L-1, anode area for 31.4 cm2and in 200 mM NaCl concentration agent conditions experiment MFC, while the control device (CD) directly with original sludge anaerobic digestion. The electricity generation of microbial fuel cell and the contrast of substrate changes were investigated. The results show that obtained maximum voltage is 597.3 mV, pH in MFC is slightly higher than in contrast test. Volume reduction in MFC is larger than the controls. Reducing sugar in MFC is lower than that in CDs. Proteins increase at first and then decrease, finally there is no significant difference in both of MFC and CD. Key words: Microbial Fuel Cells, Excess Sludge, Anaerobic Digestion, Reutilization

The Comparison of Substrate Changes in Microbial Fuel Cells Using Excess Sludge and Simple Anaerobic Digestion

2013 ◽  
Vol 864-867 ◽  
pp. 1839-1842
Author(s):  
Xiao Qin Zhao ◽  
Xiao Jie Sun ◽  
Su Na Wei ◽  
Jiang Cheng Liang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anaerobic Digestion ◽  
Chemical Oxygen Demand ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Control Device ◽  
Excess Sludge ◽  
Upward Trend ◽  
Air Cathode ◽  
Soluble Chemical Oxygen Demand

Based on the previous studies, this experiment presented a new kind of microbial fuel cells (MFC), single-chamber air cathode microbial fuel cells without proton membrane. After investigating the contrast of substrate changes in microbial fuel cells and simple anaerobic digestion, the analysis results of soluble chemical oxygen demand (SCOD), TP, TN and NH3-N show that: SCOD increase firstly, then decrease, to the end, descend. As a result, we find that SCOD in MFC is lower than that in control device (CD). Throughout the whole reaction period, TP in MFC is lower than that in CD. TN and NH3-N show upward trend after a reaction period.

Electrogenic and Antimethanogenic Properties of Bacillus cereus for Enhanced Power Generation in Anaerobic Sludge-Driven Microbial Fuel Cells

2017 ◽  
Vol 31 (6) ◽  
pp. 6132-6139 ◽  
Author(s):  
M. Amirul Islam ◽  
Baranitharan Ethiraj ◽  
Chin Kui Cheng ◽  
Abu Yousuf ◽  
Md. Maksudur Rahman Khan
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Bacillus Cereus ◽  
Microbial Fuel Cells ◽  
Anaerobic Sludge

Anaerobic digestion of excess activated sludge with ozone pretreatment

2003 ◽  
Vol 47 (12) ◽  
pp. 207-214 ◽  
Author(s):  
R. Goel ◽  
T. Tokutomi ◽  
H. Yasui
Keyword(s):  
Anaerobic Digestion ◽  
Ozone Treatment ◽  
Anaerobic Sludge ◽  
Methane Recovery ◽  
Sludge Disposal ◽  
Ozone Dose ◽  
Significant Difference ◽  
Attractive Option ◽  
Ozone Pretreatment

Source minimization of excess sludge production by economical means can be considered an attractive option to deal with the problem of sludge disposal under strict disposal standards. In this paper long-term operational results for a process that combines the oxidative ozone pretreatment with anaerobic sludge digestion are described. The ozone pretreatment solubilized around 19% and 37% of the solids at 0.015 and 0.05 gO3/gTS ozone dose. The solubilization ratios during ozonation did not show any significant difference for the sludge concentrations ranging from 1.8-2.6%. The TVS concentrations after ozone treatment were observed to be about 3% lower than the feed sludge concentrations suggesting only partial mineralization during ozonation. The ozone pretreatment resulted in improved solid reduction efficiencies during anaerobic digestion leading to higher methane recovery. The TVS removal efficiencies during anaerobic digestion were observed to increase by a maximum of 35-90% depending on the applied ozone dose during ozone pretreatment. The improvement in TVS degradation efficiency at different applied ozone doses correlated well with the extent of solubilization during ozonation. Long-term data also suggested that biomass acclimation to ozonated sludge was necessary before higher degradation efficiencies could be achieved.

Microbial Fuel Cells in Relation to Conventional Anaerobic Digestion Technology

2006 ◽  
Vol 6 (3) ◽  
pp. 285-292 ◽  
Author(s):  
T. H. Pham ◽  
K. Rabaey ◽  
P. Aelterman ◽  
P. Clauwaert ◽  
L. De Schamphelaire ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anaerobic Digestion ◽  
Microbial Fuel Cells

Optimization of sensing performance in an integrated dual sensors system combining microbial fuel cells and upflow anaerobic sludge bed reactor

Chemosphere ◽  
2018 ◽  
Vol 210 ◽  
pp. 931-940 ◽  
Author(s):  
Hui Jia ◽  
Wenbin Liu ◽  
Jie Wang ◽  
Huu-Hao Ngo ◽  
Wenshan Guo ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Anaerobic Sludge ◽  
Sensing Performance

Microbial fuel cells using anaerobic sludge

2010 ◽  
Vol 150 ◽  
pp. 159-159 ◽  
Author(s):  
Balázs Vajda ◽  
Katalin Bélafi-Bakó ◽  
Nándor Nemestóthy
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Anaerobic Sludge

scholarly journals A STUDY ON RENEWABLE ENERGY SOURCES AND MICROBIAL FUEL CELLS

2016 ◽  
Vol 2 (7) ◽  
Author(s):  
S Venkata Raju ◽  
K Madhusudhana
Keyword(s):  
Organic Matter ◽  
Renewable Energy ◽  
Fuel Cells ◽  
Anaerobic Digestion ◽  
Microbial Fuel Cells ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Renewable Energy Sources ◽  
Municipal Wastewater Treatment ◽  
Municipal Wastewater Treatment Plants

Renewable energy is the energy created by sources, which are naturally replenished such as sunlight, rain, wind and tides. Although there is much debate about how  to define and distinguish renewable energy from non-renewable, other energy types such as biomass, biofuel and anaerobic digestion are also widely considered as renewable energy. Microbial fuel cells(MFCs) that generate electricity by the break-down of organic matter(e.g. wastewater) have a great potential for the future energy and environmental challenges. MFCs are often compared with anaerobic digestion, which also uses microbial activity for breaking down organic matter in the absence of oxygen. Unlike anaerobic digestion, which is relatively well understood and already widely used in municipal wastewater treatment plants, MFCs have received far less attention and funding, hence the technology is still at laboratory level in its development.

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