序批式生物膜反应器和序批式反应器处理硝酸盐氮污染河水  

Treatment of nitrate polluted river water by SBBR and SBR

作　　者：杜晶[1] 刘如玲 秦娟娟[1] 郭亚婵 郭好江 佘宗莲[1] 

机构地区：[1]海洋环境与生态教育部重点实验室中国海洋大学环境科学与工程学院,青岛266100 [2]青岛市团岛污水处理厂,青岛266002

出　　处：《环境工程学报》2015年第5期2179-2184,共6页Chinese Journal of Environmental Engineering

基　　金：国家"水体污染控制与治理"科技重大专项(2009ZX07106-003)

摘　　要：在序批式反应器(SBR)中添加ZH组合填料构成序批式生物膜反应器(SBBR),并以SBR为对比,研究了2种工艺对污染河水中硝酸盐氮的去除效果。结果表明,(1)进水硝酸盐氮浓度分别为15、20和30 mg/L时,2种工艺对COD的去除率均大于90%,对COD的去除能力均较强,进水硝酸盐氮的增加对COD的去除效果影响不大;第1个缺氧段是COD的主要去除段,此阶段COD的去除率达到80%以上。(2)随进水硝酸盐氮浓度的增加,SBBR中NO-3-N和TN的去除率分别从99.73%和99.24%降至79.75%和65.56%;SBR中NO-3-N和TN的去除率分别从99.91%和99.51%降至55.57%和41.73%。(3)随进水硝酸盐氮浓度的提高,两反应器内亚硝酸盐氮的积累量增大;进水硝酸盐氮浓度为15、20和30 mg/L时,SBBR中的亚硝酸盐氮最大积累浓度分别为2.90、6.82和10.72 mg/L;SBR中亚硝酸盐氮最大积累浓度分别为4.35、9.47和11.89 mg/L。SBBR中亚硝酸盐氮的积累明显低于SBR。A sequencing batch biofilm reactor( SBBR),in which biomass supported on combined fibrous packing( Model NO. ZH),was used to remove organic and nitrate-nitrogen from polluted river water. The results in SBBR were compared with that in a sequencing batch reactor( SBR). The effects of nitrate concentration on removal of pollutants were investigated and discussed. When influent nitrate concentrations were 15 mg / L,20 mg / L and 30 mg / L,the removal rates of both SBR and SBBR for COD were more than 90%. More than 80%COD were removed at the first anoxic phase in both reactors. Higher influent nitrate concentration led to a decrease in the nitrate and total nitrogen removal rates,which decreased from 99. 73%,99. 24% to 79. 75%,65. 56% in SBBR and 99. 91%,99. 51% to 55. 57%,41. 73% in SBR,respectively. It was found that the maximum nitrite accumulation increased with increasing the influent nitrate concentration. With the nitrate concentrations of 15 mg / L,20 mg / L and 30 mg / L,the maximum nitrite accumulation were 2. 90 mg / L,6. 82 mg / L,10. 72 mg / L in SBBR and 4. 35 mg / L,9. 47 mg / L,11. 89 mg / L in SBR. Lower nitrite accumulation was found in SBBR than in SBR.

关 键 词：污染河水 SBR SBBR 硝酸盐氮 

分 类 号：X52[环境科学与工程—环境工程]