Bioelectricity generation from wastewater and actual landfill leachates: A multivariate analysis using principal component analysis
| Autor: | G. Hernández-Flores, H.M. Poggi-Varaldo, Omar Solorza-Feria |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Multivariate analysis
Microbial fuel cell Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology Condensed Matter Physics Pulp and paper industry 01 natural sciences Fuel Technology Wastewater Mexico city Principal component analysis Environmental science Leachate 0210 nano-technology 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Hydrogen Energy. 42:20772-20782 |
| ISSN: | 0360-3199 |
| Popis: | The goal of this work was to evaluate the treatment and bioelectricity generation in microbial fuel cells (MFC) fed with municipal wastewater (MWW) and leachate from the Mexico City landfill “Bordo Poniente” section 1 and 4 (L-1 and L-4). Principal component analysis (PCA) suggested that the 9 original variables could be reduced to 2 explanatory variables, i.e., two main principal components, further simplifying the analysis of experimental results. These PCs could be assigned either phys-chem or performance meanings. PCA revealed that performance variables ηCOD and CE contrasted with influent characteristic variables suggesting that an increase of the first group were associated to decrease of the second group, i.e., performance was better with MWW on the average compared to results with leachates. For instance, MFCs fed with MWW exhibited average ηCOD and CE of 72 and 27%, respectively, whereas the values from MFCs loaded with leachate or mixture MWW-L were 53 and 9.5%, respectively. Moreover, PCA reinforced the conclusion of a negative effect of mixing together MWW and leachates, an issue that deserves further research. To the best of our knowledge this is the first report on the use of MFCs to the treatment of atypical actual leachates from a landfill in Mexico and its mixtures with MWW. |
| Databáze: | OpenAIRE |
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