摘要
采用改性悬浮填料生物接触氧化预处理微污染水源水,对系统自然挂膜方式下生物膜生长形态、微生物组成及系统对微污染有机物、氨氮、总氮和浊度的去除效果进行了实验研究。实验结果表明:系统采用自然挂膜需3周时间方可挂膜成功,成熟后的生物膜结构稳定,种群丰富,微生物数量较多;系统进入稳定运行期间,对氨氮有较好的去除效果,最高去除率可达83.26%,而对COD_(Mn)、TN和浊度的去除效果相对较低,平均去除率分别为10.94%、39.82%和19.87%;实验期间,在温度较高的月份时,系统对COD_(Mn)、NH_(3^-)N和TN的去除效果较好;而在温度较低的月份时,系统对浊度的去除效果较好。
he biological contact oxidation filled suspended filler was used for the pretreatment of micro-polluted water source. Under the condition of natural biofilm formation, the growth morphology of Biofilm and the microbial composition were analyzed. In addition, the removal efficiency of COD_（Mn）,NH_（3-）N, TN and turbidity were discussed during normal operation. The results show that the system needs three weeks to complete the biofilm cultivation,and the biological membrane structure of mature biofilm is stabile, the biological species is rich and the number of microorganism is more. During the stable operation, the removal efficiency of NH_（3-）N is better than the removal efficiency of other pollutants. The average removal rate of NH_（3-）N, COD_（Mn）,TN and turbidity reach 65.16%,10.94%,39.82% and 19.87% respectively. During the whole experiment period, the removal efficiency of COD_（Mn）, NH_（3-）N and TN are better in the months with higher temperature, but the removal efficiency of turbidity is better in the months with lower temperature.
出处
《水处理技术》
CAS
CSCD
北大核心
2016年第5期109-112,116,共5页
Technology of Water Treatment
基金
淮南市科技计划资助项目(2013A4202)
安徽省高等学校自然科学基金项目(KJ2015A409)
关键词
微污染水源
生物接触氧化
改性悬浮生化填料
氨氮
生化需氧量
总氮
浊度
micro-polluted water resource
biological contact oxidation
modified suspending biochemical biller
ammonia nitrogen
chemical oxygen demand
total nitrogen
turbidity
