WATER RESOURCES RESEARCH GRANT PROPOSAL
Project ID: 2004ME29B
Title: Metal mobilization from municipal biosolids stockpiles: The role of dissolved organic matter.
Project Type: Research
Focus Categories: Solute Transport, Toxic Substances, Water Quality
Keywords: Contaminant Transport, Sludge, Toxic Substances¸ Water Quality
Start Date: 04/01/2004
End Date: 08/31/2005
Federal Funds: $1,735
Non-Federal Matching Funds: $19,221
Congressional District: 2
This project involves field observations and laboratory experiments to assess the mobilization potential of trace metals from municipal biosolids stockpiles. We propose to study the concentration, speciation, and lability of trace metals released from the biosolids both in surface runoff and in groundwater leachate. Field observations include monitoring of metals concentrations in the solid-phase, and in the biosolids dissolved organic matter (DOM), at our field site in Maine. Laboratory experiments will be conducted using the biosolids DOM collected from the field to determine the stability and the electrochemical lability of trace metal-DOM complexes. Both field and laboratory studies will be done using the runoff and the leachate as a function of the age of the biosolids stockpile.