摘要
通过利用从城市污水中分离到的6株优势细菌组成的优势菌群处理城市污水静态及动态模拟试验研究,分析了优势菌群在城市污水处理中对CODCr的影响.静态试验结果表明,"混合菌液+活性污泥"、"混合菌液"和"活性污泥"试验组的CODCr去除率分别为91.2%,63.0%和41.9%,并且在24h左右达到最高.动态试验结果表明:不同处理方式的最佳水力停留时间(HRT)均为8h左右;优势菌群对城市污水处理的稳定运行有较重要的作用;"活性炭挂膜"、"混合菌液+活性污泥"、"活性污泥"、"塑料网挂膜"处理城市污水,其最高CODCr去除率分别为97.1%,94.0%,78.2%和77.9%.静态和动态处理试验结果均表明:优势菌群可以在一定程度上提高城市污水CODCr的处理效果.
The effects of predominant microorganisms composed of six previously reported predominant strains on CODCr removal of municipal sewage were evaluated by the static and dynamic simulation experiments. The results of the static experiment indicated that the CODCr removing rates of the test groups： ＂mixed culture ＋ activated sludge＂, ＂mixed culture＂ and ＂activated sludge＂ were 91.2%, 63.0% and 41.9%, respectively, after 24 hours＇ treatment. The results of dynamic experiment showed that the best hydraulic retention time （HRT） of different treatments was about 8 h. The predominant microorganisms contributed markedly to the operational stabilization of municipal sewage treatment and the CODCr removing rates of the test groups ＂active carbon ＋ mixed culture＂, ＂activated sludge ＋ mixed culture＂, ＂activated sludge＂ and ＂plastic meshwork ＋ mixed culture＂ were 97.1%, 94. 0%, 78. 2% and 77. 9%, respectively. Both the static and dynamic experiment results indicated that the predominant microorganisms could improve the effects of CODCr removal of municipal sewage to a certain extent.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第11期104-108,共5页
Journal of Southwest University(Natural Science Edition)
基金
重庆市教委科学技术研究资助项目(200112094)
重庆市万州区2008年度科技人才专项资金资助项目
关键词
优势菌群
城市污水
静态试验
动态试验
好氧预挂膜
活性污泥
水力停留时间
CODCR
predominant microorganisms
municipal sewage
static experiment
dynamic experiment
aer-obic attached film
activated sludge
hydraulic retention time
CODCr
