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Recovery Of Agricultural Nutrients From Biorefineries, Daniel Elliott Carey, Yu Yang, Patrick J. Mcnamara, Brooke Mayer
Recovery Of Agricultural Nutrients From Biorefineries, Daniel Elliott Carey, Yu Yang, Patrick J. Mcnamara, Brooke Mayer
Civil and Environmental Engineering Faculty Research and Publications
This review lays the foundation for why nutrient recovery must be a key consideration in design and operation of biorefineries and comprehensively reviews technologies that can be used to recover an array of nitrogen, phosphorus, and/or potassium-rich products of relevance to agricultural applications. Recovery of these products using combinations of physical, chemical, and biological operations will promote sustainability at biorefineries by converting low-value biomass (particularly waste material) into a portfolio of higher-value products. These products can include a natural partnering of traditional biorefinery outputs such as biofuels and chemicals together with nutrient-rich fertilizers. Nutrient recovery not only adds an additional …
Emerging Investigators Series: Pyrolysis Removes Common Microconstituents Triclocarban, Triclosan, And Nonylphenol From Biosolids, J. J. Ross, Daniel Zitomer, T. R. Miller, C. A. Weirich, Patrick J. Mcnamara
Emerging Investigators Series: Pyrolysis Removes Common Microconstituents Triclocarban, Triclosan, And Nonylphenol From Biosolids, J. J. Ross, Daniel Zitomer, T. R. Miller, C. A. Weirich, Patrick J. Mcnamara
Civil and Environmental Engineering Faculty Research and Publications
Reusing biosolids is vital for the sustainability of wastewater management. Pyrolysis is an anoxic thermal degradation process that can be used to convert biosolids into energy rich py-gas and py-oil, and a beneficial soil amendment, biochar. Batch biosolids pyrolysis (60 minutes) revealed that triclocarban and triclosan were removed (to below quantification limit) at 200 °C and 300 °C, respectively. Substantial removal (>90%) of nonylphenol was achieved at 300 °C as well, but 600 °C was required to remove nonylphenol to below the quantification limit. At 500 °C, the pyrolysis reaction time to remove >90% of microconstituents was less than …