Selective Elimination of Waste in a Metal Finishing Operation

EPA Contract Number: 68D30125
Title: Selective Elimination of Waste in a Metal Finishing Operation
Investigators: Sunthankar, Mandar
Small Business: IonEdge Corporation
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1993 through March 1, 1994
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1993) RFA Text |  Recipients Lists
Research Category: SBIR - Pollution Prevention , Pollution Prevention/Sustainable Development , Small Business Innovation Research (SBIR)


Chromate conversion coatings are routinely applied to cadmium in electroplating. This metal finishing process generates large quantities of hazardous hexavalent chromium and heavy-metal waste. This is a major environmental concern. Consequently, an environmentally benign coating finish is proposed as a suitable alternative to the chromate conversion coating. This coating will be applied using the unique dry plating process developed at IonEdge Corporation. This benign material will eliminate chromium waste in cadmium plating. Simultaneously, the dry plating will eliminate liquids, and will in situ recycle solid cadmium. In this research, the feasibility of applying a desired quality of this material to the dry plated cadmium will be investigated. Variation in its physical properties related to the processing conditions will be studied. A successful demonstration of this new concept could result in total elimination of hazardous liquids in a cadmium plating operation. In addition, the dry plating will minimize solid waste.

Supplemental Keywords:

Scientific Discipline, Toxics, Waste, Water, Sustainable Industry/Business, hexavalent chromium, National Recommended Water Quality, cleaner production/pollution prevention, Wastewater, Environmental Chemistry, Chemistry, Technology for Sustainable Environment, New/Innovative technologies, Engineering, Hazardous, 33/50, Engineering, Chemistry, & Physics, Environmental Engineering, chromate, cadmium & cadmium compounds, chromium & chromium compounds, Chromium, chromate substitution, metal plating industry, alternative materials, electroplating, pollution control, metal finishing, alternative technology, coating processes, metal finishing , chromium plating, coating formulations, coatings, source reduction, pollution prevention, cadmium, plating, alternative coatings, metal plating, plating wastes

Progress and Final Reports:

  • Final
  • SBIR Phase II:

    Environmentally Benign Alternative to Chromate Conversion