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关于控制水体中重金属含量的因素,六十年代以来文献陆续有所报导.在海水体系中粘土矿物对重金属的固定作用的研究,较早期的有Chester(1965)的伊利石吸附海水中钴和锌的研究.近五年来又见有Rermers[1]、Murray[2]、Meyers[3]、O'conner[4]、Weijden[5]以及Robin[6]等进一步分别探讨了粘土矿物对重金属吸附作用的影响因素、吸附能力及吸附动力学等问题,其中有的还提出了吸附作用的模式. 相似文献
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The adsorption/desorption of phosphorus across the sediment -water interface is the main mechanism that controls the buffering capacity of DRP in coastal and estuarine water. Determination by three processes revealed that: 1) DRP flux from early diagenesis in surface sediment is F = 31.9ug/(m2.d ), which is only 1/1600 of the ammonia released; 2) at normal temperature and in the long term, the TDP released by adsorption /desorption across the sediment-water interface is a function of the major environmental factors; and 3) based on the determined SODR and assumed average water depth H(m) and residence time tR(d), the maximum flux of DRP can be estimated. 相似文献
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This paper is based on the results of simulation experiments and annual observations on the effect of Cr, Cu, Hg, and Zn on diatom (Chaetoceros sp. Skelelonema costatum and Melosira sulcata) growth. Laboratory experiments reveal many physico-chemical parameters play an important role in the toxicity and accumulation of metals in organisms.. The mesotrophic .level in the water environment is related to phytoplankton growth. A higher nutrient level can have a negative impact on diatom production. Several of the above metals coexist in the investigated region and exert mainly a negative effect on growth. 相似文献
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在海洋石油污染中,最为普遍的并对海洋生态系产生直接危害作用的形式是溶解的或分散于水体中的石油烃.Lee和Gardner[1](1978)研究了在受控生态系中几种芳烃的归宿;Wakeham等[2](1983)和Hinga等[3](1980)研究了在海洋小宇宙中几种烃类的风化途径;Makay和Leinonen[4](1975)利用模拟实验研究了水体中烃类的挥发作用;永田进一[5](1983)和倪纯治等[6](1983)分别研究了盐度和温度及油含量等因素对微生物降解石油烃的影响. 相似文献
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