| 盐度和压力对沉积物逐级分离样品吸附毒性有机物的影响 |
| 摘要点击 619 全文点击 676 投稿时间：1995-06-12 |
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| 中文关键词 盐度 压力 近海沉积物 吸附 毒性有机物 |
| 英文关键词 salinity water pressure submarine sediment toxic organic chemicals |
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| 中文摘要 |
| 用化学逐级分离法对大连近海沉积物中有机组分和无机组分进行分离,考察了盐度和压力对沉积物中有机组分和无机组分吸附几种毒性有机物的影响。结果表明,有机组分对几种毒性有机物的吸附能力随盐度的升高线性递增;而无机组分的吸附能力随盐度的升高线性递减。升高压力增加了沉积物中2组分对毒性有机物的吸附能力。但随压力的升高,吸附能力增加的幅度降低。吸附系数与压力之间的关系可用指数方程描述。 |
| 英文摘要 |
| The organic arid inorganic componts of the submarine sediment from Dalian Bay were separated with a sequential chemical separation procedure.The adsorption of several toxic organic chemicals(TOCs) on the separated sediment samples and the effect of salinity and water pressure on the adsorptions were investigated.The conclusions were made as follows:(1) The adsorption capacity of organic components on the sediment increased as the salinity of water increased, but reduced for inorganic components.The relationships could be described with linear equations.(2) The adsorption capacity of both organic and inorganic components increased as the water pressure increased.The relationships could be described with exponential equations. |
