期刊
ENVIRONMENTAL POLLUTION
卷 170, 期 -, 页码 260-267出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2012.07.013
关键词
Pentachlorophenol (PCP); Soil properties; Flooded; Dissipation; Redox reaction
资金
- Major Program of National Natural Science Foundation of China [41090284, 41130532]
- National Natural Science Foundation of China [20977077, 40971136]
- National High Technology Research and Development Program of China (863 Program) [2012AA06A203]
The potential for dissipation of pentachlorophenol (PCP) was investigated in soils from four different sites in China. These were an umbraqualf (Soil 1), a Plinthudult (Soil 2), a Haplustalf (Soil 3) and an Argiustoll (Soil 4) which were either flooded, to produce anaerobic conditions, or incubated aerobically at 60% water-holding capacity (WHC). The dissipation of PCP in Soil 1 at 60% WHC was higher than under flooded condition, while the opposite occurred in the other three soils. Under flooded conditions, the redox potential decreased significantly in Soil 1 and Soil 4, where sulphate reduction was occurred and the dissipation of PCP was statistically significant (about 96% and 98%, respectively) at the end of incubation. After addition of inorganic oxidants, dissipation of PCP was significantly inhibited by FeCl3, while Na2SO4 and NaNO3 had different effects, depending upon the soil type. (C) 2012 Elsevier Ltd. All rights reserved.
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