活性污泥膨胀诱因及其控制分析  

Analysis on Inducement and Control of Activated Sludge Bulking

作　　者：段志广 DUAN Zhiguang(Henan EnergyandChemicalGroupCo.,Ltd.,ZhengzhouHenan 450018)

机构地区：[1]河南能源化工集团有限公司,河南郑州450018

出　　处：《河南科技》2021年第30期90-93,共4页Henan Science and Technology

摘　　要：活性污泥的丝状菌性膨胀,是活性污泥污水处理过程中遇到的最棘手问题,将导致污泥沉降性能变差,废水处理效果降低。本文研究了引起污泥膨胀的诱因微生物及其生长特性,并采取一定措施来控制污泥的膨胀现象。研究发现,添加抑制剂和改变进水的C/N比例及污泥有机负荷,均能有效地控制污泥的膨胀现象,其中,次氯酸钠的用量为15 ppm,C/N比例为25:1,污泥负荷为0.6 kgBOD5/(kgMISS.d)。Filamentous bulking of activated sludge is the most difficult problem encountered in the process of activat⁃ed sludge wastewater treatment,which will lead to poor sludge sedimentation performance and reduced wastewater treatment effect.In this paper,the inducement microorganisms causing sludge bulking and their growth characteris⁃tics were studied,and some measures were taken to control sludge bulking.It was found that adding inhibitors and changing the C/N ratio of influent and sludge organic load can effectively control the sludge bulking phenomenon,in which the dosage of sodium hypochlorite is 15 ppm,the C/N ratio is 25:1,and the sludge load is 0.6 kgBOD5/(kg⁃MISS.d).

关 键 词：污泥膨胀 丝状菌 抑制剂 C/N比例 有机负荷 

分 类 号：X703[环境科学与工程—环境工程]