摘要
由于表面活性剂有着显著降低液体表面张力、不会污染环境及灵活广泛等优势,在污水有机物降解中有着广泛的应用。选择两种阳离子型和两种阴离子型表面活性剂,并制备COD为58mg/L的污水作为实验材料,实验中分别计算污水COD与有机物降解率,作为判定表面活性剂对污水有机物降解影响的指标。实验结果表明,污水COD随表面活性剂浓度的增大而减小,当表面活性剂投加量为50mg/L、污水接种量为30mL、降解时间为10min时,有机物降解效果最好,降解率为21.5%。
Due to the advantages of significantly reducing liquid surface tension,not polluting the environment,and being flexible and widespread,surfactants have been widely used in the degradation of organic pollutants in wastewater.Two cationic and two anionic surfactants were selected and wastewater with a COD of 58 mg/L was prepared as experimental materials.In the experiment,COD and organic matter degradation rates of wastewater were calculated separately as indicators to determine the impact of surfactants on organic matter degradation in wastewater.The experimental results show that COD in wastewater decreases with the increase of surfactant concentration.When the dosage of surfactant is 50 mg/L,the inoculation amount of wastewater is 30 mL,and the degradation time is 10 min,the degradation effect of organic matter is the best,with a degradation rate of 21.5%.
作者
张小峰
Zhang Xiaofeng(Beijing Design Branch of China Petroleum Engineering Construction Co.,Ltd.,Beijing,100083)
出处
《当代化工研究》
CAS
2023年第12期67-69,共3页
Modern Chemical Research
关键词
表面活性剂
污水
有机物降解
应用研究
surfactant
sewage
degradation of organic matter
application research
