摘要
针对炼油废水生物强化处理系统中有时存在的不稳定造成排水超标的问题,研究了SBR反应器中采用生物强化技术,其细菌数量、脱氢酶、邻苯二酚1,2-双加氧酶(C12O)和邻苯二酚2,3-双加氧酶(C23O)等关键生物学指标与污染物去除效率的综合对应关系,并运用ERIC-PCR技术研究了运行前后处理系统内微生物群落的变化.结果表明,投加菌剂的生物强化处理系统提高了细菌数量和酶活,使处理效率明显提高.生物强化系统中细菌数量及C23O酶活与污染物去除效率呈正相关关系,且微生物群落结构十分稳定.C12O为一种诱导酶,其酶活随污染物去除效率升高而降低.
Recause of the existence of some unstable factors, the effluent water from a bioaugmentation refinery wastewater treatment system usually exceeds the provided standard. To solve this problem, the relationship between the bacteria number, dehydrogenase, catechol 1, 2-dioxygenase（C12O）, catechol 2,3-dloxygenase（C23O） and the degradation efficiency of the bloaugmentation and control system is investigated and discussed. Using ERIC-PCR technology, we studied the changes of the microbial populations before and after treatment. The results show addition of microorganisms agent can increase the bacteria number, enzyme efficiency and the efficiency of the reactor. There exists a positive relationship between the bacteria number, C23O and the degradation efficiency in the bioaugmentation reactor. The microbial populations in both the reactors are stable before and after run. C12O is a kind of induction enzyme and its efficiency declines while the degradation efficiency increases.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第9期1853-1857,共5页
Environmental Science
基金
国家高技术研究发展计划(863)项目(2005AA601020
2005AA649020)
