化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2012年
7期
1615-1619
,共5页
生物转盘%总氮的去除率%化学需氧量的去除率%回流比
生物轉盤%總氮的去除率%化學需氧量的去除率%迴流比
생물전반%총담적거제솔%화학수양량적거제솔%회류비
rotating biological contactor%removal rate of total nitrogen%removal rate of COD%reflux ratio
采用单轴三级生物转盘（RBC）,进行了生物转盘同步去除化学需氧量和氮的试验研究。水温度15℃,进水COD浓度为400mg/L左右时,转盘对化学需氧量的去除率达到85%左右。控制适宜的碱度,转盘系统氨氮的硝化率在75%左右、总氮（TN）的去除率在50%左右。增设硝化液回流系统后,总氮的去除率显著提高,特别是回流比为200%时,TN去除率在低温下可达73.87%。实验表明生物转盘对化学需氧量和氮有较好的同步去除效果。
採用單軸三級生物轉盤（RBC）,進行瞭生物轉盤同步去除化學需氧量和氮的試驗研究。水溫度15℃,進水COD濃度為400mg/L左右時,轉盤對化學需氧量的去除率達到85%左右。控製適宜的堿度,轉盤繫統氨氮的硝化率在75%左右、總氮（TN）的去除率在50%左右。增設硝化液迴流繫統後,總氮的去除率顯著提高,特彆是迴流比為200%時,TN去除率在低溫下可達73.87%。實驗錶明生物轉盤對化學需氧量和氮有較好的同步去除效果。
채용단축삼급생물전반（RBC）,진행료생물전반동보거제화학수양량화담적시험연구。수온도15℃,진수COD농도위400mg/L좌우시,전반대화학수양량적거제솔체도85%좌우。공제괄의적감도,전반계통안담적초화솔재75%좌우、총담（TN）적거제솔재50%좌우。증설초화액회류계통후,총담적거제솔현저제고,특별시회류비위200%시,TN거제솔재저온하가체73.87%。실험표명생물전반대화학수양량화담유교호적동보거제효과。
A 3-stage rotating biological contactor was used to study simultaneous removal of COD and nitrogen.When temperature was 15 ℃ and influent COD concentration was about 400mg/L,removal rate of COD was about 85%.Through controlling proper alkalinity nitrification rate of ammonia was about 75% and removal rate of TN was about 50%.After addition of a nitrification liquid circulation system,removal rate of TN,at reflux ratio of 200% increased to 73.87 %.Experimental results showed good effect of rotating biological contactor on removing COD and nitrogen.
