Jump to main content or area navigation.

Contact Us

Superfund Innovative Technology Evaluation (SITE)

 EPA/540/AR-92/014

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

 

Membrane Treatment of Wood Preserving Site Groundwater by SBP Technologies, Inc.
August 1993

This document provides an evaluation of the SBP Technologies, Inc. (SBP) formed-in-place membrane hyperfiltration process. The purpose of the technology is to reduce the volume of waste requiring further treatment through such techniques as immobilization or destruction. This volume reduction technology, when coupled with other technologies, may reduce total treatment costs and minimize off-site transportation of hazardous materials. Using cross-flow filtration to minimize fouling, the membrane filtration system separates contaminated groundwater and other waste waters into a small, concentrated stream that can be treated biologically or otherwise, and a relatively clean permeate that can be discharged, reinjected. or reused with little or no additional treatment. In hyperfiltration, pollutants are separated on the basis of molecular weight, molecular size, polarity, or charge.

This report summarizes the utility and application of SBP's membrane system to the treatment of organic contaminated wastewater. This analysis utilizes information from the Superfund Innovative Technology Evaluation (SITE) Program's demonstration at the American Creosote Works wood preserving site in Pensacola, Florida as well as data from other SBP investigations. Conclusions were reached concerning the technological effectiveness and economics of the process and its suitability for use at other sites and with other waste waters.

During the SITE demonstration, operations were carefully monitored to establish a database against which the vendor's claims for the technology could be evaluated. These claims were that the filtration system would (1) provide an 80% volume reduction for the contaminants in the feed stream; and (2) achieve 90% removal of semivolatile contaminants. based on a comparison of the concentrations in the feed stream and those in the permeate from the filtration system. Based on the demonstration study using the system as configured and as used, an 83% reduction in the volume of the contaminated feed water was achieved. However, the system achieved a 74% overall removal of the designated semivolatile components, which included low molecular weight phenols and polynuclear aromatic hydrocarbons (PAHs). The filtration system was much more effective at removing the PAHs than phenols. The average removal efficiencies were 92% for PAHs and 18% for phenols.

Capital and operating costs for the system are estimated to be between $220 and $1,740 per thousand gallons (on an annual basis), dependent on the type and magnitude of contamination encountered in the waste stream.

Risk Mangement Research | Air and Climate Change Research | Water Research | Ecosystems Restoration Research | Land Risk Management Research | Technology: Sustainable Technologies Research, Environmental Technology Verification Program (ETV), and Technology Assessments

Jump to main content.