Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Exploratory experiments were conducted to determine the potential application of nanoparticles for reducing the concentration of gases released from swine slurry. Prior to actual testing with nanoparticles, preliminary tests were conducted using commonly available powders (e.g., sodium bicarbonate and talcum powder) to develop the experimental set-up and testing protocols that were used in subsequent experiments. The test parameters established were sampling flow rate and amount of particles at 500 mL/s and 3 g, respectively, with the target gas (10-ppm ammonia (NH3) passed through the test powder in a packed-bed filter set-up. In subsequent tests, six commercially-available nanoparticles, talcum powder and sodium bicarbonate were evaluated for their impact on two target gases, 50-ppm NH3 and 25-ppm hydrogen sulphide (H2S). Among the nanoparticles, Al2O3, TiO2, and ZnO reduced the target NH3 concentration by 85.6%, 85.2%, and 78%, respectively, while MgO, MgO+, and ZnO were able to reduce the target H2S to below detection level.