海水及浓海水吸收二氧化硫  

Absorption of sulfur dioxide by seawater and concentrated seawater

作　　者：赵小芳[1] 侯纯扬[1] 樊利华[1] 崔振东[1] 

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192

出　　处：《环境工程学报》2013年第8期3123-3130,共8页Chinese Journal of Environmental Engineering

基　　金：海洋公益性行业科研专项经费项目(201005023)

摘　　要：采用鼓泡法研究了海水及浓海水对二氧化硫的吸收效果,并考察了吸收液温度、气体流量、盐度及碱度等因素的影响。结果表明,相同条件下,浓海水对二氧化硫的吸收能力较海水明显提高,且温度越高浓海水优势越明显,气体流量为200 mL/min,二氧化硫浓度为3 140 mg/m3,25℃时,浓海水的穿透时间较原海水延长20 min,60℃时则延长30 min。相同碱度条件下,盐度的增加对海水吸收二氧化硫无明显影响;而在相同盐度条件下,碱度的增加可显著提高海水吸收二氧化硫的能力。The absorption of sulfur dioxide by seawater and concentrated seawater was studied,and the effects of temperature,gas flow,salinity and alkalinity were investigated.It is shown that the solubility of sulfur dioxide in concentrated seawater is stronger than in seawater at the same circumstance,and at higher temperature the superiority of concentrated seawater is more obvious.As the gas flow is 200 mL/min and the content of SO2 is 3 140 mg/m3,the through time of SO2 in concentrated seawater is 20 min longer than in seawater at 25℃,and 30 min longer at 60℃.At the same alkalinity,the effect of salinity is negligible,while the solubility of sulfur dioxide increases distinctly with the alkalinity increasing.

关 键 词：二氧化硫 脱硫 海水 浓海水 吸收 

分 类 号：X701.3[环境科学与工程—环境工程]