【作者】 费庆志； 金颖；

【Author】 FEI Qing-zhi, JIN Ying (Environment Technology Institute , DalianJiaotong University, Dalian 116028)

【机构】 大连交通大学环境科学与工程学院；

【摘要】 用SBR法处理豆制品废水的试验表明该系统具有较好的抗负荷冲击能力,进水COD在300mg/L-2000mg/L之间变化,对系统不造成任何影响;考察了曝气时间、曝气量和污泥浓度对去除效果的影响,试验结果表明,曝气时间和曝气量对处理效果影响很大,确定该反应系统最佳曝气时间是8小时,适宜的曝气量是800 L/h,而污泥浓度控制在4000mg/L左右时,处理效率最高,采用进水顶出水的排水方式是可行的,确定系统的最佳排水比是3/5。厌氧段的插入可以减少剩余污泥的产量。更多还原

【Abstract】 The experimental research of soybean wastewater by SBR showed that reliable and stable treatment results could be achieved. The COD of effluent water was less than 100 mg/L when influent water was in level of 300 to 2000 mg/L of COD concentration. The relationship between the removal rate and aeration time , aeration quantity has strong influence on treatment efficiency, the best aeration time was 8h, the best aeration quantity was 800L/h, at the same time ,if the MLSS concentration was about 4000mg/L,the removal rate will be more high. The experimental research showed that the method of draining by influent propping up effluent was feasible, the best ratio of draining was 3/5.Increasing of anoxic phase is favourable to reduce the production of residual activated sludge.更多还原