山梨醇废水生物处理工程稳定运行的影响因素分析  

Factors affecting stability of activated sludge process for sorbitol wastewater treatment

作　　者：赵印[1] 吴育津[1] 顾向阳[1] 沈标[1] 

机构地区：[1]南京农业大学农业部农业环境微生物工程重点开放实验室/生命科学学院,江苏南京210095

出　　处：《南京农业大学学报》2009年第4期61-66,共6页Journal of Nanjing Agricultural University

基　　金：国家自然科学基金项目(50778089)

摘　　要：根据工程运行数据对影响山梨醇废水生物处理工程稳定运行的因素进行了系统分析。结果发现:影响废水处理效率和出水水质的因素主要有有机负荷冲击、高浓度硅藻土和Ni2+毒性负荷冲击。有机负荷冲击有间歇性冲击和连续性冲击两种形式,间歇性负荷冲击对系统处理效能没有不利影响,但连续性负荷冲击时化学需氧量(COD)去除率明显下降,出水水质严重超标。高浓度硅藻土和Ni2+冲击对出水水质也有较大影响,且持续时间较长。因此,加强生产设备的操作和管理,杜绝硅藻土和Ni2+泄漏进入工艺废水,是山梨醇废水工程长期稳定运行的必要条件。In the present paper factors affecting the stability of activated sludge process for sorbitol wastewater treatment were analyzed. Results showed that organic shock loads, excessive input of siliceous marl or Ni^2＋ ion constituted major factors affecting sorbitol wastewater treatment efficiency and effluent quality. Intermittent and continuous shock loading had been observed during the 5-month operation of sorbitol wastewater treatment system using activated sludge process. Intermittent shock loading showed no adverse effects on effluent quality whereas continuous shock loading led to lower chemical oxygen demand （COD） removal rate with effluent COD concentration higher than discharge standards. Inferior effluent quality could also result from input of excessive amounts of siliceous marl or Ni^2＋ to the process wastewater. In order to achieve long-term stable operation of sorbitol wastewater treatment system, leakage of siliceous marl or Ni^2＋ into process wastewater has to be prevented through strengthening facility operation and management.

关 键 词：活性污泥 山梨醇 废水处理 负荷冲击 镍离子 

分 类 号：X505[环境科学与工程—环境工程]