活性炭对海水中硼的吸附研究

Study on the adsorption of boron from sea-water by active carbon

未处理的生活污水和海水中均含有一定量的硼,给人们的生产和生活带来严重影响,因此,微量硼的分离与去除意义重大。利用活性炭吸附法吸附溶液中的微量硼,对其影响因素如接触时间、吸附质质量浓度、pH、吸附剂量及温度等进行了研究,并对比了动静态吸附及酸碱再生效果,确定了适宜的实验条件。应用该法吸附某海水中的微量硼,其一次除硼率可达90%以上,硼质量浓度达到WHO规定饮用水的要求。

The untreated domestic wastewater and sea - water both contain a certain amount of boron, which will affect the production and people＇s living severely. So it is very meaningful to separate and remove boron. In this paper,the active carbon adsorption method was applied to remove boron from the boron - containing solutions. Influencing factors such as contact time, mass concentration of adsorbate, pH, adsorbent dosage and the temperature were studied. The effects of the dynamic and static adsorption, and the acid and base regeneration of the active carbon were compared, and proper conditions were determined. Using this method to separate micro - amounts of boron from some sea - water, the boron removal - ratio at the first time could exceed 90%, and the boron content could reach the drinking water requirements of WHO.