New Sorbents for Trace Heavy Metal Removal from Drinking Water

EPA Contract Number: 68D10047
Title: New Sorbents for Trace Heavy Metal Removal from Drinking Water
Investigators: Sarangapani, Shantha
Small Business: ICET Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1991 through March 1, 1992
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1991) RFA Text |  Recipients Lists
Research Category: Water and Watersheds , SBIR - Water and Wastewater , Small Business Innovation Research (SBIR)


New ideas are presented on the covalent attachment of chelafing functionalities to a common, inexpensive sorbent material, which can then complex heavy metal ions irre- versibly. The efficient removal of lead, cadmium, chro- mium mercury, zinc, nickel, cobalt, iron, and copper is anticipated. The covalently attached ligands are expected to be stable towards hydrolysis and pH variations. The capac- ity of the chemically modified sorbent materials will be evaluated for the above-mentioned heavy metal ions in the presence of calcium and magnesium ions and for simulated water samples. The sorbent material before and after sorp- tion will be examined by neutron activation analysis, and the eluted water will be analyzed by Inductively Coupled Plasma Mass Spectrometry.

Supplemental Keywords:

RFA, Scientific Discipline, Toxics, Water, Sustainable Industry/Business, National Recommended Water Quality, cleaner production/pollution prevention, Chemistry, Contaminant Candidate List, Technology for Sustainable Environment, New/Innovative technologies, Drinking Water, Engineering, 33/50, Engineering, Chemistry, & Physics, Mercury, sorption, cobalt, chromium & chromium compounds, Chromium, lead, lead & lead compounds, sorbents, Zinc, iron, treatment, mercury & mercury compounds, copper, nickel & nickel compounds, cadmium, other - risk management, heavy metals, nickel

Progress and Final Reports:

  • Final