Grantee Research Project Results
Silica Materials for Mercury Recovery From Wastewater
EPA Contract Number: 68D70040Title: Silica Materials for Mercury Recovery From Wastewater
Investigators: Kroh, Franklin O.
Small Business: TPL Inc.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1997 through March 1, 1998
Project Amount: $70,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1997) RFA Text | Recipients Lists
Research Category: SBIR - Water and Wastewater , Watersheds , Small Business Innovation Research (SBIR)
Description:
A number of industrial processes generate wastewater with mercury contamination. Existing cleanup processes have difficulties in achieving low mercury discharge limits, especially in the presence of competing metal ions already below their discharge limits. Commercial ion exchange media are not selective for mercury, so other metal ions compete with mercury for binding sites. Consequently, excessive amounts of ion exchanger are required.This Phase I project will develop two series of highly selective silica materials for removing mercury from contaminated wastewater. Relative to the low selectivity of state-of-the-art materials, up to four orders of magnitude less material will be required to achieve mercury discharge limits. In Phase I, the silica materials will be synthesized. Each will be evaluated for mercury capacity, selectivity relative to competing ions, ease of regeneration and reclamation of metal, and cost of production. If successful, the silica materials will be useful for the purification of wastewater generated in chloralkali manufacture, metal plating, battery recycling, and dentistry.
Supplemental Keywords:
small business, SBIR, wastewater treatment, engineering, chemistry., RFA, Scientific Discipline, Water, Waste, Toxics, Hazardous, National Recommended Water Quality, Chemical Engineering, Engineering, Mercury, Civil Engineering, Civil/Environmental Engineering, Chemistry, HAPS, Environmental Chemistry, 33/50, Chemistry and Materials Science, Wastewater, Hazardous Waste, Environmental Engineering, mercury & mercury compounds, waste recovery, silica materials, Mercury Compounds, wastewater treatmentProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.