双香豆素在SBR工艺中污泥减量化作用的研究  

Study on Sludge Reduction in SBR Process by Dicoumarin

作　　者：李军[1] 唐政坤 杨佳夫 LI Jun;TANG Zhengkun;YANG Jiafu(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang,China,110168;Beijing Shun Jie Xing Hong Engineering Consulting Co.Ltd.,Beijing,China,100000)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]北京顺捷兴宏工程咨询有限公司,北京100000

出　　处：《沈阳建筑大学学报（自然科学版）》2020年第5期955-960,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51778374)。

摘　　要：目的试验探究解偶联剂双香豆素在SBR工艺系统中对活性污泥的减量化作用以及对工艺运行效能的影响.方法利用动态SBR反应器模拟SBR工艺,不同质量浓度(0.3 mg/L、1 mg/L、3 mg/L、6 mg/L、10 mg/L)双香豆素投加到工艺系统中进行试验.结果双香豆素能有效降低污泥产率.当双香豆素质量浓度为10 mg/L时,产率较空白组降低了32.4%.双香豆素在低质量浓度范围对氨氮的去除影响不明显.在质量浓度为10 mg/L时,对COD的去除率表现出一定程度下降,去除率均值为77.9%,比空白阶段下降9%.在研究双香豆素对污泥沉降性以及活性的影响时,结果显示:双香豆素对污泥沉降性有较小影响,当双香豆素浓度为10 mg/L时,SVI值由空白组的70.8升高至77.8.结论双香豆素对污泥的活性影响较显著,能够明显提高污泥的脱氢酶活性及呼吸速率.双香豆素对污泥减量化效果显著.The effect of double coumarin in SBR process on the reduction of activated sludge and the efficiency of process operation were investigated.The SBR process was simulated by a dynamic SBR reactor,and different concentrations(0.3 mg/L,1 mg/L,3 mg/L,6 mg/L,10 mg/L)of dicoumarin were added to the process system for testing.The results show that dicoumarin can effectively reduce sludge yield.When the dicoumarin concentration was 10 mg/L,the yield was reduced by 32.4%compared with the blank group.The dicoumarin has almost no effect on the removal of ammonia nitrogen in the low concentration range.When the concentration of dicoumarin was 10 mg/L,the removal rate of COD showed a certain degree of decline,and the average removal rate was 77.9%,which was 9%lower than the blank stage.When studying the effect of dicoumarin on the sedimentation and activity of sludge,the results showed that dicoumarin had a small effect on the sedimentation of sludge.When the concentration of dicoumarin was 10 mg/L,the SVI value was blank.The 70.8 of the group increased to 77.8;the effect of dicoumarin on the activity of the sludge was significant,which could significantly increase the dehydrogenase activity and respiration rate of the sludge.The dicoumarin has a significant effect on sludge reduction.

关 键 词：双香豆素 污泥减量化 脱氢酶活性 解偶联剂 

分 类 号：X5[环境科学与工程—环境工程]