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本文研究了海水中碳酸根在固体粒子上的吸附。碳酸根在各种固体颗粒物上的吸附程度大小顺序为：赤铁矿＞δ－MnO2＞水锰矿＞SiO2，最大吸附量可达到约ZmgC／g吸附剂，且最大吸附值均在天然海水pH（pH8）左右。在低pH时，碳酸根对NaCl介质中砷酸根的吸附没有影响，在高pH时，则降低了砷酸根在固体颗粒物上的吸附量，因此碳酸根的存在对其他阴离子的吸附会产生竞争作用。
In this paper, the adsorption of carbonates on solid particles in seawater is studied. The order of adsorption of carbonate on various solid particles is as follows: hematite> δ-MnO2> manganite> SiO2, the maximum adsorption amount can reach about ZmgC / g adsorbent, and the maximum adsorption value is in the natural seawater pH pH8) or so. At low pH, carbonate has no effect on the adsorption of arsenate in NaCl medium, but decreases the adsorption of arsenate on solid particles at high pH, so the presence of carbonate can play a competitive role in the adsorption of other anions .