溶气气浮分离乳化油的影响因素及其作用机制
发布时间：2018-08-06 22:08
【摘要】：通过实验方法研究了溶气气浮除油的影响因素及各因素的作用机制。提高溶气压力可增大污水中的气泡数密度及气泡/油滴的碰撞概率,其中数密度增大是改善除油效果的主要原因。表面活性剂和絮凝剂均可改善浮选除油效果。表面活性剂可减小气泡直径并提高油滴/气泡的碰撞效率,而絮凝剂则可使油滴聚集成簇而提高气泡的捕获效率。最后通过对比几种化学助剂的效果表明,无机絮凝剂PAC相较有机絮凝剂PAM及表面活性剂SLS更适于作为溶气气浮的化学助剂。
[Abstract]:The influence factors of dissolved air flotation on oil removal and the action mechanism of each factor were studied by experimental method. Increasing the dissolved gas pressure can increase the bubble number density and the collision probability of the bubble / oil droplet in the sewage. The increase of the number density is the main reason to improve the oil removal effect. Both surfactant and flocculant can improve the deoiling effect of flotation. The surfactant can reduce the bubble diameter and increase the collision efficiency of oil droplet / bubble, while the flocculant can make the oil droplet gather into clusters and improve the capture efficiency of the bubble. Finally, by comparing the effects of several kinds of chemical auxiliaries, it is shown that the inorganic flocculant PAC is more suitable as the chemical assistant for dissolved air flotation than the organic flocculant PAM and the surfactant SLS.
【作者单位】： 中国石油大学(华东)重质油国家重点实验室;中国石油工程建设公司华东设计分公司;
【基金】：国家自然科学基金项目(21276281)
【分类号】：X74
[Abstract]:The influence factors of dissolved air flotation on oil removal and the action mechanism of each factor were studied by experimental method. Increasing the dissolved gas pressure can increase the bubble number density and the collision probability of the bubble / oil droplet in the sewage. The increase of the number density is the main reason to improve the oil removal effect. Both surfactant and flocculant can improve the deoiling effect of flotation. The surfactant can reduce the bubble diameter and increase the collision efficiency of oil droplet / bubble, while the flocculant can make the oil droplet gather into clusters and improve the capture efficiency of the bubble. Finally, by comparing the effects of several kinds of chemical auxiliaries, it is shown that the inorganic flocculant PAC is more suitable as the chemical assistant for dissolved air flotation than the organic flocculant PAM and the surfactant SLS.
【作者单位】： 中国石油大学(华东)重质油国家重点实验室;中国石油工程建设公司华东设计分公司;
【基金】：国家自然科学基金项目(21276281)
【分类号】：X74
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