摘要
短程硝化反硝化处理焦化废水的中试结果表明,进水COD、NH+4-N、TN和酚的浓度分别为1201.6、510.4、540.1和110.4mg L时,出水COD、NH+4-N、TN和酚的平均浓度分别为197.1、14.2、181.5和0.4mg L,相应的去除率分别为83.6%、97.2%、66.4%和99.6%。与常规生物脱氮工艺相比,该工艺氨氮负荷高,在较低的C N值条件下可使TN去除率提高。
Pilot-scale experiment was made on the short-cut nitrification and denitrification for coking wastewater treatment.The experimental result indicated that when the influent concentration of COD,NH+4-N,TN and phenol is 1 201.6,510.4,540.1,and 110.4 mg/L respectively,the average effluent concentration of COD,NH+4-N,TN and phenol is 197.1 mg/L,14.2 mg/L,181.5 mg/L,and 0.4 mg/L respectively,with removal rate of 83.6%,97.2%,66.4%,and 99.6% achieved respectively for COD,NH+4-N,TN and phenol.As compared with the conventional biological denitrification process,this process has the advantages of high ammonia-nitrogen loading and the increased TN removal rate at lower C/N ratio.
出处
《中国给水排水》
CAS
CSCD
北大核心
2003年第8期11-14,共4页
China Water & Wastewater
关键词
短程硝化反硝化
焦化废水
C/N
氨氮
short-cut nitrification and denitrification
coking wastewater
C/N
ammonia nitrogen
