【摘要】 [目的]海水脱硫燃煤火电厂海水排放中会产生很多泡沫,对环保视觉产生不良影响,为满足越南环保许可验收要求,需消除泡沫。[方法]通过对脱硫后的海水,经曝气池后,泡沫产生的机理进行观察、分析,通过试验,提出了在排水明渠设置拦泡网进行集中物理喷淋消泡方案。[结果]此方案简易、无需停机施工或维护,投资少,无需使用化学药品进行消泡,不会对海水增加化学药品风险。[结论]此方案效果明显,可为同类火电厂海水排放泡沫消泡提供良好参考。更多还原

【Abstract】 [Introduction]There will be lot of foam in seawater discharge from seawater desulphurization coal-fired power plants,which will have adverse effects on environmental vision. In order to meet the requirements of environmental permit in Vietnam,foam need to be eliminated.[Method]Through observing and analyzing mechanism of seawater foam generation about CW cooling after seawater FGD and aeration basin,and did some tests. It was proposed a scheme of centralized physical spray scheme to defoaming. [Results] The results we obtained demonstrate that this scheme is easy for construction and maintenance without stopping operation,bringing more obvious effect with less investment. There is no need to use chemicals for defoaming,which does not increase the risk of chemicals to seawater.[Conclusion]This scheme provides a good reference for foam defoaming of seawater discharge in similar coal-fired power plants.更多还原