不同悬浮填料处理化粪池尾水的差异性及影响分析  

Analysis of Differences and Influence on Treatment of Tail Water from Septic Tank with Different Suspended Packings

作　　者：张新喜[1,2] 程晨 胡小兵[1,2] 秦川[1] 黄涛 Zhang Xinxi;Cheng Chen;Hu Xiaobing;Qin Chuan;Huang Tao(College of Arehitectural Engineering,Anhui University of Technology,Ma＇anshan 243032,China;Engineering Research Center of Water Purification and Utilization Technology based on Biofilm Process,Ministry of Education,Ma＇anshan 243032,China)

机构地区：[1]安徽工业大学建筑工程学院,安徽马鞍山243032 [2]生物膜法水质净化及利用技术教育部工程研究中心,安徽马鞍山243032

出　　处：《净水技术》2018年第9期88-93,共6页Water Purification Technology

基　　金：国家自然科学基金(51208001);安徽省高校省级科学研究项目(KJ2013A059);国家级创新创业计划项目(201210360078)

摘　　要：为探究不同悬浮填料处理化粪池尾水效果的差异性与影响,选取6种悬浮填料生物膜反应器,对某高校教师公寓化粪池尾水进行处理,检测填料表面的微生物附着情况及填料流化状态,分析COD_(Cr)、NH_3-N、TP的去除效果。结果表明,6种悬浮填料表面附着的微生物膜内均镜检到固着型微生物,生物膜生长良好。虽然所有填料的除磷效果不佳,但它们均能降低有机物浓度及C/N比值,可适应人工湿地后续处理。K型填料的总有效面积、流化程度均大于多面空心球填料、蛇皮丝悬浮球填料,但K1填料流化剧烈,生物膜附着弱,生化处理性能差,COD_(Cr),和NH_3-N的去除率仅为56.79%和30.15%;K3填料和多面空心球Ⅰ填料流化程度较好,COD_(Cr)的去除率分别为69.05%和67.26%,NH_3-N的去除率分别为44.00%和35.66%;其他3种填料流化程度较差,污染物去除效果不佳,COD_(Cr)和NH_3-N的去除率均值为63.56%和26.28%。由结果可知,悬浮填料的处理效果不仅受填料总有效表面积及容积负荷的影响,还受到流化程度的影响,流化程度直接影响了表面膜的更新和微生物的附着生长。In order to explore the differences and influence of different suspended packings in the treatment of tail water from septic tank, biofilm reactors with six types of suspended packings were selected for the treatment of effluent from septic tanks of a university faeuhy apartment. Microorganisms attaching on packing surface and fluidization states of packings were observed, and removal efficienties of CODCr, NH3-N, TP were determined. Results showed that sessile microorganism was found on the surface of all packings, indicating that the biofilm on packings grew well. Althogh all packings showed poor removal for phosphorous, they could effectively reduce organic concentration and C/N ratio, making the effluent suitable for the following treatment by artificial wetland. The total effective area and fluidization degree of K-Type packings were larger than those of nmlti-plane-hollow-sphere packings and snack-skin-filament- suspension-ball packings. However, the fluidization of K1 packing was severe, leading to the weak biofilm adhesion as well as its poor biotreatment performance. Its removal rates for CODCr and NH3-N were only 56. 79% and 30. 15%, respectively. The fluidization of K3 packing and multi-plane-hollow-sphere Ⅰ packing were better, their removal rates were 69.05% and 67. 26% for CODCr, 44. 00% and 35.66% for NH3-N, respectively. The other three types of packings had poor fluidization degrees. Their average removal rates for CODCr and NH3-N were 63.56% and 26. 28%, respectively. The treatment effect of suspended packing is not only affected by total effective surface area and volume loading, but also by fluidization degree, which directly influenees renewal of the surface biofilm on packings and adhesion growth of the mieroorganisms.

关 键 词：悬浮填料 化粪池 尾水 差异性分析 

分 类 号：TU992[建筑科学—市政工程]