摘要
对炼油废水中氨氮的生物降解用两种工艺（Ｏ／Ｏ工艺和Ａ／Ｏ工艺）进行了中间试验。试验结果表明，正常工艺条件下，Ｏ／Ｏ工艺处理后出水中ＮＨ３ －Ｎ＜ ２５ｍ ｇ／Ｌ，ＣＯＤ＜ ４０ｍ ｇ／Ｌ，油＜ ５ｍ ｇ／Ｌ；Ａ／Ｏ工艺处理后出水中ＮＨ３－Ｎ＜ ２０ｍ ｇ／Ｌ，ＣＯＤ＜ ５０ｍ ｇ／Ｌ，油＜ ５ｍ ｇ／Ｌ，ＮＯ－３ －Ｎ＜ １０ｍ ｇ／Ｌ。
A pilot scale test for removal of NH 3 N in refinery wastewater by two biological processes(i.e. O/O process and A/O process) has been carried out.The experimental results show that under the normal process conditions,effluent NH 3 N and COD for O/O process are <25 mg/L and <40 mg/L respectively;for A/O process the following effluent quality can be achieved:COD<50 mg/L,oil<5 mg/L,NH 3 N<10 mg/L.
出处
《化工环保》
CAS
CSCD
北大核心
2000年第1期6-11,共6页
Environmental Protection of Chemical Industry
关键词
废水处理
炼油废水
生物脱氮
wastewater treatment
refinery wastewater
ammonia nitrogen removal by biological treatment.
