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Ultrasonic treatment has been shown to have a favorable effect on the regeneration of spent biological activated carbon (BAC) from drinking water treatment plants. In this study, the use of ultrasound as a regeneration method had a significant effect on the recovery of spent BAC after 7.5 years of use; it effectively increased the iodine value from 300 mg/g to 600 mg/g and restored the specific surface...
To evaluate the feasibility of ultrasonic regeneration of granular activated carbon (GAC) used in wastewater treatment, we used ultrasound to regenerate GAC which was used to adsorbed low concentration sewage. The ultrasound with different power, frequency and irradiation time was used to regenerate GAC which treated sewage with the concentration of about 25mg/L. The experimental results indicate...
An innovative structured catalyst based on sintered metal fibers (SMFs) coated by a grain-structured ZnO layer was developed for the selective 3-phase hydrogenation of functionalized alkynes. The catalyst was synthesized by the deposition of Pd 0 -sol with 7-nm nanoparticles stabilized by molybdate anions on ZnO/SMF after reduction in hydrogen at 773 K. The crystallites of PdZn alloy (24 nm)...
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