2种填料作为生物膜载体修复微污染河水的比较  

Comparison of two materials as biofilm carriers for bioremediation of micro-contamination river water

作　　者：曹文平[1] 

机构地区：[1]徐州工程学院环境工程学院,徐州221008

出　　处：《环境工程学报》2014年第3期967-971,共5页Chinese Journal of Environmental Engineering

基　　金：江苏省"六大人才高峰"基金项目(JNHB-005);江苏省"青蓝工程"资助;徐州工程学院仪器专项基金项目(XKY2011606);国家科技部星火计划项目(2013GA690421)

摘　　要：采用序批式生物反应器（SBBR）,在水温为（19.0±1.5）℃,DO≥4.5 mg/L条件下,比较基于2种生物膜填料（竹丝和空心塑料球）上的微生物对微污染河水中高锰酸钾指数（COD Mn）、总氮（TN）和总磷（TP）等的去除效果。结果表明,经过4 h的运行,竹丝作为生物膜载体时,COD Mn、TN的去除分别为17.5%~48.8%和49.38%~70.93%,但TP的去除效果不明显;而基于空心塑料球的生物膜对COD Mn的去除率仅为2.4%~42%,对TN和TP去除效果均不明显。通过显微分析发现,基于竹丝填料生物载体上微生物种类、数量明显多于空心塑料球。Two kinds of materials,filamentous bamboo and hollow plastic ball,were employed as biofilm carrier for bioremediation of river water with micro-contamination. The experiments were carried out in sequencing batch bioreactor（ SBBR） with（ 19. 0 ± 1. 5） ℃,and dissolved oxygen（ DO） ≥4. 5 mg/L to compare the two materials for potassium permanganate index（ COD Mn）,total nitrogen（ TN） and total phosphor（ TP） removal. Experimental results demonstrate that COD Mn and TN removal rates reached at 17. 5% ~ 48. 8% and 49. 38%~ 70. 93%,respectively based on the biofilm on filamentous bamboo,and TP removal rate was little; while COD Mn removal rate was only 2. 4% ~ 42% based on the biofilm on hollow plastic ball,and both TN and TP removal were little. By means of microscopic examination,microbial quantities and series on filamentous bamboo were found to be more than that on hollow plastic ball.

关 键 词：生物膜 生物修复 生物载体 微污染河水 生物反应器 

分 类 号：X703[环境科学与工程—环境工程]