Innovative Complexing Agents for Recovery of Heavy Metals in Municipal and Industrial Wastewater

EPA Contract Number: 68D60033
Title: Innovative Complexing Agents for Recovery of Heavy Metals in Municipal and Industrial Wastewater
Investigators: Damle, Ashok S.
Small Business: Technochem Company
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1996 through March 1, 1997
Project Amount: $70,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1996) RFA Text |  Recipients Lists
Research Category: Water and Watersheds , SBIR - Water and Wastewater , Small Business Innovation Research (SBIR)

Description:

Efficient removal and recovery of toxic heavy metals from industrial wastewater streams is a major challenge. Industrial wastewater treatment has been slow in meeting this challenge and still relies heavily on a conventional technology based upon precipitation/settling, sedimentation, and activated sludge treatment. The toxic heavy metals do not degrade and tend to accumulate in the biological sludge requiring ultimate disposal by landfilling as well as the loss of valuable metal resources. This fact makes the removal and recovery of heavy metals from wastewater potentially economically attractive. In the proposed Phase I effort, complexing agents with appropriate solvents will be developed for extracting toxic heavy metals of concern to U.S. E.P.A., especially lead, arsenic, cadmium, chromium and mercury, from dilute wastewaters and the feasibility of recovering these metals in a uphill facilitated transport mode in microporous hollow fiber membrane contractors will be demonstrated. Depending upon the complexation chemistry and wastewater compositions, the proposed approach may be tailored to a specific heavy metal or may be used for simultaneous removal/recovery of multiple metals. The proposed effort, if successful, will address an urgent need in industrial wastewater treatment and will provide a cost effective method to recover the toxic metals.

Supplemental Keywords:

small business, SBIR, wastewater treatment, engineering, chemistry., Scientific Discipline, Toxics, Water, Chemical Engineering, Wastewater, Environmental Chemistry, Chemistry, Chemistry and Materials Science, 33/50, Mercury, wastewater treatment, hazardous liquid waste, cadmium & cadmium compounds, chromium & chromium compounds, industrial wastewater, sludge treatment, metal recovery, alternative technology, municipal wastewater treatment, municipal wastewater, mercury & mercury compounds, mercury recovery, heavy metals, aqueous waste stream

Progress and Final Reports:

  • Final
  • SBIR Phase II:

    Innovating Complexing Agents for Recovery of Heavy Metals in Municipal and Industrial Wastewater