膨胀颗粒污泥床（EGSB）反应器的研究与应用

【作者】 浦定艳；

【导师】 王连军；

【作者基本信息】 南京理工大学 ， 环境工程， 2004， 硕士

【摘要】 对肠衣废水的水质进行了分析，确定采用厌氧—好氧处理工艺。厌氧—好氧组合工艺能高效地处理高浓度难降解的肠衣废水，其总COD去除率达95.0％。厌氧膨胀颗粒污泥床(EGSB)反应器处理肠衣废水可以去除废水中绝大部分的有机污染物。EGSB反应器的适宜表面上升流速为1.60m／h～2.62m／h，最高容积负荷(VLR)为310.24kgCOD／m~3·d。厌氧反应器内的颗粒污泥性质发生了明显变化，颗粒污泥粒径分布主要集中在0.9～2.0mm范围内，最大的颗粒污泥直径有3.5mm左右。使用普通活性污泥法后续处理EGSB反应器的出水亦有较好的处理效果，其最佳水力停留时间为48h。更多还原

【Abstract】 After monitoring the qualities of sausage wastewater, the best wastewater treating process was determined. The anaerobic process combined with aerobic biochemical process could degrade the high concentration sausage wastewater effectively, the Chemical Organic Demand (COD) is 95.0%. The Expanded Granular Sludge Blanket (EGSB) reactor could remove the most part of the organic contamination from the wastewater. The optimal range of superficial liquid velocity (Vup) was 1.60~2.62 m/h in the EGSB reactor, and the highest volume organic loading rate (VLR) of EGSB was 310.24 kgCOD/m3 ?d. During the operational process of EGSB reactor treating sausage wastewater, the characteristics of granular sludge changed greatly. The granular diameter was ranged in 0.9~2.0mm, the max granular diameter was over 3.5 mm. As the secondary treatment process, the general active sludge process could also get good removal rate of the effluent of EGSB reactor, and the optimal hydraulic retention time (HRT) was 48 h.更多还原