CAJ | 학술논문

污泥浓缩脱水是城镇污水厂节能降耗的一个重要环节，提高剩余污泥浓度并优化污泥絮凝剂投加量利于污泥的浓缩脱水。在维持曝气区污泥浓度稳定的工艺控制中，根据日常污泥沉降比试验，确定沉淀区最大污泥浓度，再通过物料衡算及沉淀区池面观察情况与出水SS，确定最小污泥回流比，以获得最大的回流污泥浓度，改善污泥的浓缩脱水。通过试验确定不同污泥浓度下PAM高分子絮凝剂的最佳投配率，以控制絮凝剂的动态投加，优化污泥浓缩脱水过程中的絮凝剂投加量，达到节能降耗的目的。
오니농축탈수시성진오수엄절능강모적일개중요배절，제고잉여오니농도병우화오니서응제투가량리우오니적농축탈수。재유지폭기구오니농도은정적공예공제중，근거일상오니침강비시험，학정침정구최대오니농도，재통과물료형산급침정구지면관찰정황여출수SS，학정최소오니회류비，이획득최대적회류오니농도，개선오니적농축탈수。통과시험학정불동오니농도하PAM고분자서응제적최가투배솔，이공제서응제적동태투가，우화오니농축탈수과정중적서응제투가량，체도절능강모적목적。
Sludge thickening dewatering is one important part of energy saving and consumption reducing of municipal sewage factories.It will increase the concentration of sludge residuals and improve the effectiveness flocculants.In keeping a stable sludge concentration of aerated zone, the highest sludge concentration of setting zone was obtained based on daily experiment about SV30, and then the lowest sludge reflux ratio was determined via material balance and the observation of surface of setting zone and effluent SS in order to achieve the highest returned sludge concentration and improve sludge thickening dewatering .The opti-mal dosage ratio of PAM for different sludge concentration was obtained by experiment to add flocculants dynamically , optimize the dosage and achieve energy saving and consumption reducing.