pp′-DDT adsorption to suspended particulate matter in sea water
pp′-DDT adsorption to suspended particulate matter in sea water
复制标题
pp′-DDT对海水中悬浮颗粒物的吸附
DOI：
10.1016/0016-7037(74)90004-0
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发表时间：
1974
影响因子：
5
通讯作者：
G. T. Felbeck
中科院分区：
文献类型：
--
作者：
R. Pierce;C. Olney;G. T. Felbeck
设计了一种程序，研究了pp ' -DDT[2,2 -二（对氯苯）- 1,1,1 -三氯乙烷]对水溶液中悬浮微粒的吸附和解吸。研究了滴滴涕对悬浮在海水中的海洋沉积物、沉积物馏分、粘土和腐植酸的吸附作用，发现腐植酸馏分比粘土或沉积物具有更大的吸附能力。从沉积物中去除腐殖质部分将吸附能力降低到不到原始沉积物样品的60%。结论是，悬浮腐殖质颗粒可能是通过水柱运输氯化碳氢化合物并将其集中在沉积物和以碎屑为食的生物中的重要媒介。
A procedure was devised to study pp′-DDT [2, 2-bis (p-chlorophenyl)-1, 1, 1-trichloroethane] adsorption and desorption to suspended particulates in aqueous solutions. DDT adsorption to a marine sediment, sediment fractions, clay and humic acid suspended in sea water was investigated and the humic fraction was found to have a greater adsorbing capacity than the clay or sediment. Removal of the humic fraction from sediment reduced the adsorption capacity to less than 60 per cent of the original sediment sample. It was concluded that suspended humic particulates may be important agents for transporting chlorinated hydrocarbons through the water column and for concentrating them in sediments and in detritus-feeding organisms.