Development of a Cavitating Jet System for Removal of Pesticides and Other Pollutants From Wastewater Discharge

EPA Contract Number: 68D02017
Title: Development of a Cavitating Jet System for Removal of Pesticides and Other Pollutants From Wastewater Discharge
Investigators: Kalumuck, Kenneth M.
Small Business: Dynaflow Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: April 1, 2002 through September 1, 2002
Project Amount: $70,000
RFA: Small Business Innovation Research (SBIR) - Phase I (2002) RFA Text |  Recipients Lists
Research Category: Water and Watersheds , SBIR - Water and Wastewater , Small Business Innovation Research (SBIR)


Dynaflow, Inc., proposes the development of a novel jet-induced cavitation process for the removal of various pollutants-including pesticides from wastewater discharge-that would be economical, readily applicable to both large- and small-scale systems, and that does not produce potentially hazardous by-products of chlorination and ozonation. Ultrasonically induced cavitation is known to be capable of producing reactions in water resulting in organic compound oxidation, and generally in accelerating various chemical reactions. The generation of ultrasonic cavitation is, however, energy intensive and difficult to apply at practical scales. Recently, Dynaflow, Inc., demonstrated that jet-induced cavitation can oxidize selected organic compounds with two orders of magnitude greater energy efficiency than via ultrasonic means.

Phase I will investigate the feasibility of using jet cavitation for the oxidation of selected pesticides and other toxic organic pollutants in typical industrial wastewater discharges. Concepts for implementation in moderate as well as large-scale systems and processes will be addressed, as will the potential costs associated with such systems. Phase II will consider a broader range of pollutants and pesticides, a detailed parametric study to obtain optimization relations, scaling laws, and engineering issues of implementation into practical-scale systems.

Successful completion of the proposed effort will produce a new state-of-the-art technology for the removal of pesticides and organic pollutants from industrial wastewater discharge to surface and other waters. The potential applications of this technology are enormous. The technology will provide a reliable, cost-effective means for wastewater discharge handling, leading to safe end products. It will be of use to industries as well as government facilities in disposing of the huge quantities of toxic substances continually being produced. There is a growing need for such technology throughout the world as the supply and availability of clean water decreases while the demand increases. The technology promises to be easy to implement at multiple scales, and could be utilized for both large central facilities and smaller systems.

Supplemental Keywords:

small business, SBIR, wastewater, chlorination, ozonation, ultrasonically induced cavitation, pesticides, organic pollutants., Scientific Discipline, Waste, Water, Municipal, Wastewater, Chemistry, Environmental Microbiology, Engineering, Engineering, Chemistry, & Physics, Environmental Engineering, wastewater treatment, organic compound oxidation, wastewater treatment plants, municipal waste, municipal wastewater treatment, treatment, municipal wastewater, cavitating jet system

Progress and Final Reports:

  • Final Report