2017, Volume 20, Issue 1
Removal of organic compounds from water by sonochemical processes
1 National Research and Development Institute for Industrial Ecology – INCD-ECOIND Bucharest-Subsidiary Ramnicu Valcea, 1 Uzinei Street, Ramnicu Valcea 240050, Romania
2 National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, PO Box Râureni 7, 240050, Râmnicu Vâlcea, Romania
The paper describes the wastewater micro-pollutant removal by sonochemical processes. The work discloses the sonochemical degradation of the next organochlorine compounds: 1, 2 Dichloro-propane, 1, 2 Dichloroethane, and 1,1,2,2 Tetrachloroethane from aqueous solutions. The experiments were realized with two types of equipment: ultrasound bath UCD-150 and sonotrode UP 200 Ht.
The experimental results showed high efficient removal for all three compounds: 1,1,2,2 Tetrachloroethane 88.8 %, 1, 2 Dichloropropane 86.6 % and 1, 2 Dichloroethane 80.0 % in bath ultrasound treatment after 50 minute. The degradation of 1, 2 Dichloropropane, 1, 2 Dichloroethane, 1,1,2,2 Tetrachloroethane was much better for sonotrode with 14 mm diameter (81.0 %, 74.0 % respectively 67.5 %) than for sonotrode with 40 mm diameter (76.0 %, 63.0 % and 62.8 %). This difference between the two probes regarding removal efficiency can be explained by different amplitudes of equipment.
chlorinated organic compounds, ultrasonic irradiation, sonochemical processes
Tag search chlorinated organic compounds ultrasonic irradiation sonochemical processes