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Beneficial Reuse of Residuals and Reclaimed Water: Impact On Soil Ecosystem and Human Health (formerly W2170)

Investigators
Hawkins, SH
Institutions
University of Tennessee
Start date
2016
End date
2019
Objective
Evaluate the short- and long-term chemistry and bioavailability of nutrients, potentially toxic inorganic trace elements, and pharmaceuticals and personal care products (TOrCs) in residuals, reclaimed water, and amended soils in order to assess the environmental and health risk-based effects of their application at a watershed scale. Specific tasks: (i) To develop and evaluate in vitro (including chemical speciation) and novel in vivo methods to correlate human and ecological health responses with risk-based bioavailability of trace elements and TOrCs in residuals and residual-treated soils. (ii) Predict the long-term bioavailability and toxicity of trace elements and TOrCs in residual-amended urban, agricultural and contaminated soils. (iii) Evaluate long-term effects of residuals application and reclaimed wastewater irrigation on fate and transport of nutrients, trace elements, TOrCs, and emergence/spread of antibiotic resistance in high application rate systems. (iv) Evaluate plant uptake and ecological effects of potentially toxic trace elements and TOrCs from soils amended with residuals and reclaimed wastewater.
Funding Source
Nat'l. Inst. of Food and Agriculture
Project source
View this project
Project number
TEN00503
Accession number
1010695
Categories
Chemical Contaminants
Antimicrobial Resistance
Natural Toxins
Bacterial Pathogens