西安石油大学学报（自然科学版）2016，Vol.31Issue(2)：99-104,111,7.DOI:10.3969/j.issn.1673-064X.2016.02.016
含硫污水曝气除硫工艺效果分析及防腐对策
Effect Analysis of Aeration Desulfurization Process of Sulfur-containing Wastewater and Prevention Measures to Its Corrosion
摘要
Abstract
To optimize the aeration desulfurization technology of sulfur-containing wastewater in Shuanghe union station of Henan Oil-field,the influence of gas-liquid ratio on the aeration desulfurization effect and the influence of the aeration process on the SRB and the sulfur speciation in the wastewater are studied,the corrosivity of the wastewater before and after desulfurization tower is evaluated using weight loss method,and the corrosion products are analyzed by means of XRD,SEM and EDS. The results show that:the optimal desul-furization effect can be obtained when the gas-liquid ratio is 0. 5;when the gas-liquid ratio is 0. 6,the aeration of 50 min has certain in-hibitory effect on SRB;after aeration,the corrosion rate of the wastewater at the outlet of the desulfurization tower is half of that at the inlet of it,but the corrosion caused by the residual oxygen at the outlet is still strong. The steel pipeline between the outlet of the desul-furization tower and the water injection tank is replaced by glass fiber reinforced plastic pipeline,and the good corrosion prevention effect is received. After aeration,the suspension containing S8 enteres the water injection tank,the synergistic effect of S8 with CO2 cau-ses a corrosion rate of the suspension as high as 1. 33 mm/a. Therefore it is suggested to that the filter device is used at the outlet of the water injection tank or the water injection tank is coated with anticorrosive coating.关键词
含硫污水/曝气除硫/防腐措施Key words
sulfur-containing wastewater/aeration desulfurization/corrosion preventing measure分类
能源科技引用本文复制引用
李景全,安云飞,郑亚妮,颜珩烨,代吉建..含硫污水曝气除硫工艺效果分析及防腐对策[J].西安石油大学学报（自然科学版）,2016,31(2):99-104,111,7.基金项目
中石化河南油田局级科研项目“双下联合站注水水质处理效率提升技术研究” （）
