Grantee Research Project Results
Development and Demonstration of a Bench-Scale Prototype for the Effective Removal of Selenium in Wastewater
EPA Contract Number: 68D98150Title: Development and Demonstration of a Bench-Scale Prototype for the Effective Removal of Selenium in Wastewater
Investigators: Downing, Michael W.
Small Business: HYDRO-Solutions and Purification LLC.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1998 through March 1, 1999
Project Amount: $70,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1998) RFA Text | Recipients Lists
Research Category: SBIR - Water and Wastewater , Watersheds , Small Business Innovation Research (SBIR)
Description:
The Enhanced Iron Co-Precipitation process has been successfully demonstrated to effectively remove arsenic from wastewater, by HYDRO-Solutions and Purification, LLC., of Fairbanks, Alaska. This method, which varies significantly from standard iron co-precipitation of arsenic processes, was patented in 1994. The chemical dynamics of other heavy metals, especially selenium, closely resemble those of arsenic. Initial laboratory testing has confirmed that removal of selenium by Enhanced Iron Co- Precipitation is effective, providing the pH and ORP of the process is closely regulated. This project will further define the effective operational parameters, through further laboratory testing, when the process is subjected to conditions expected in the field. A 10 gallon/minute bench-scale prototype will then be constructed and demonstrated at a selected selenium contamination site. The effectiveness of the Enhanced Iron Co- Precipitation process will be measured for both the removal of selenium and the economic factors of capital and operational costs.Supplemental Keywords:
small business, SBIR, wastewater, engineering, chemistry, EPA., Sustainable Industry/Business, Scientific Discipline, Water, Waste, Economic, Social, & Behavioral Science Research Program, Toxics, Hazardous, National Recommended Water Quality, Remediation, Economics & Decision Making, Engineering, Chemistry, Environmental Chemistry, Engineering, Chemistry, & Physics, Wastewater, cleaner production/pollution prevention, Environmental Engineering, metal removal, economic benefits, water quality, chemical precipitation processes, Selenium, bench scale, cost effectiveness, contaminant removal, cost/benefit analysis, bench scale characterisitcs, wastewater treatment, Iron Co-Precipitation ProcessProgress 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.