IBSS Represented at Agronomy, Crop Science, and Soil Science Society 2014 International Annual Meetings

November 24, 2014

Emmanuel DeleonManny Deleon and Will Gray presented a poster at the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America 2014 International Annual Meetings, "Grand Challenges—Great Solutions." The Conference was Nov. 2-5, 2014, in Long Beach, CA.

Their poster, "Biosolid-derived Biochar for Phosphate (P) Remediation," is available online.

More on the conference at https://www.acsmeetings.org/​.

Will Gray Presents PosterThe poster abstract reads:

As world population increases and the global trend continues towards urbanization, municipal waste production is steadily increasing. Treatment of these wastes for safe disposal yields a nutrient rich organic compound called biosolids. Currently, these solid byproducts of waste treatment are either incinerated, placed in a landfill, or field applied as fertilizer. Limited studies have investigated the use of these biosolids in pyrolysis to create biochar. Pyrolysis, or thermal conversion in the absence of oxygen, creates a carbonaceous compound similar to charcoal. In this study, biosolids pyrolized at different temperatures were investigated for use as a method of remediation for effluent with a high concentration of P, such as agricultural runoff. Elemental characterization and adsorption modelling were used to determine the optimum parameters for creation of a biochar that would achieve maximum P adsorption. Spectroscopic techniques were used to investigate changes in functionality with varying pyrolysis temperatures. Principle component analysis, a multivariate tool, was used to visualize the major and minor differences within the data. Following a Langmuir adsorption model, along with a 2nd order kinetics model, biochar created at the highest temperatures showed the greatest adsorption properties of P concentration.​



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