期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 170, 期 2-3, 页码 871-875出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2009.05.048
关键词
Ultrasonication; Soil remediation; POPs
资金
- Academy of Finland [212649]
- Maj and Tor Nessling Foundation, Helsinki, Finland
- Academy of Finland (AKA) [212649, 212649] Funding Source: Academy of Finland (AKA)
A new and promising technology is utilization of sonochemistry on decontamination of polluted soil. The feasibility of this technology on treatment of contaminated soils (synthetic clay, natural farm clay, and kaolin) was studied by using two target persistent organic pollutants (POPs): hexachlorobenzene (HCB) and phenanthrene (PHE). The soils were highly contaminated in 500 mg/kg. The laboratory experiments were conducted with various conditions (moisture, power, and time duration). The effects of these parameters on ultrasonication (as well as the removal of contaminants) were examined. The reasonable moisture ratio of the slurry could be in range of 2:1-3:1. The process did not change pH values of soils. Experimental results showed that ultrasonication has a potential to reduce the high concentrations of these POPs. (C) 2009 Published by Elsevier B.V.
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