高浓度含氨炼油污水SBR法处理技术研究

Study on Treatment of Petrochemical WastewaterContaining High Concentrated NitrogenousCompounds by SBR Process

通过实验,考察了SBR法处理高浓度含氨炼油污水时的进水方式、厌氧好氧间隔时间的长短、进水碱度对炼油污水脱氮效果的影响。研究表明,单纯以好氧硝化脱氮为目的时,SBR最佳的进水方式为1次进水,若以厌氧、好氧交替进行脱氮处理时的最佳操作状态为3次(或连续)进水,厌氧好氧等时间比例相续进行3次效果最佳;进水的碱度/氨氮比值在8.1±0.6时对应最大的氨氮去除率,进水碱度/氨氮的比值与氨氮去除率间存在二次曲线关系。

Effect of influx mode and time interval of aerobic and anaerobic digestion and alkalinity on denitrification have been studied by using SBR process. The result showed that using aerobic digestion as the only denitrification purpose, one time influx mode was the best, and using aerobic and anaerobic digestion alternatively, three times or continuous influx mode would be the best. When the ratio of influent alkalinity with ammonia was 8.1±0.6, it could obtain largest denitrification efficiency, there was a conic relation between alkalinity of influent and denitrification.