摘要
对比试验的进水总氮约200mg/L,当进水碱度为1000mg/L左右时,达到了100%的氨氮去除,出水中存在剩余碱度,pH在6.8以上;当进水碱度为600mg/L左右时,氨氮去除只达到83%左右,出水中碱度耗尽,pH在5左右。试验并对一次操作过程进行了跟踪测试,测试指标有COD,NH:,No2,No3,碱度和pH.在碱度耗尽时.氨氮向亚硝酸盐亚硝酸盐氮的转化被抑制,但亚硝酸盐氮向硝酸盐氮的转化仍在进行,直至完成.
Under the condition of influent with concentration of total N about 200 mg/La comparison experiment is made. When the alkalinity of the influent is about 1 000 mg/L,the removal of ammonia of effluent is up to 100%,the alkalinity of effluent exists and pH is above 6.8.When the alkalinity of the influent is about 600 mg/L,the removal of ammonia of effluent is only 83%or so,the alkalinity of effluent is exhausted and pH is about 5.A tracing measurement for one operational cycle is made too. The parameters of tracing measurement are COD,ammoina,nitrite,nitrate, alkalinity and pH. When the alkalinity is exhausted,the progress of change of ammonla to nitrite stops,while the progress of change of nitrite to nitrate continues until it is completed.
出处
《河海大学学报(自然科学版)》
CAS
CSCD
1995年第1期44-49,共6页
Journal of Hohai University(Natural Sciences)
关键词
SBR
氨
氮
硝化
跟踪测试
nitrification alkalinity SBR(Sequencing Batch Reactor)tracing measurement of an operational cycle