天然蛭石组合工艺处理生活污水的效果  

Effect of domestic wastewater treatment by an integration biological processes with natural vermiculite as absorbent

作　　者：廖兴盛[1,2] 吴晓芙[3] 李科林[3] 罗家豪[4] 

机构地区：[1]长沙学院生物工程与环境科学系 [2]中南林业科技大学资源与环境学院,湖南长沙412004 [3]中南林业科技大学资源与环境学院 [4]中南林业科技大学食品科学与工程学院

出　　处：《生态环境》2008年第3期918-922,共5页Ecology and Environmnet

基　　金：中-挪合作<株洲环境工程项目>(国科外字(1996)第339号)

摘　　要：针对天然蛭石的吸附能力,开发了天然蛭石组合工艺,用于生活污水处理,并分析其处理效果。通过对生活污水的浊度、CODcr、TN和TP的质量浓度进行测定,结果显示:组合工艺对于初始ρ(CODcr)低于500.0mg·L-1的污水,处理后其浊度、ρ(CODcr)和ρ(TN)分别下降了86.6%、80.3%和70.7%,出水可达到污水二级排放标准(GB8978-1996);同时,组合工艺也能有效降低生活污水的ρ(TP),获得了49.0%的下降效果。另外,在曝气强度为10.0m3·m-3·h-1和投加有效微生物菌群时,均能提高组合工艺的处理效果。Experiment was carried out to evaluate the treatment efficiency of domestic wastewater using an integrated biological process with natural vermiculite as adsorbent. In the treatment process, the turbidity, ρ（CODcr）, ρ（TN） and ρ（TP） of domestic wastewater were determined. Results showed that the turbidity, ρ（CODcr） and ρ（TN） of treated domestic wastewater, under the initial ρ（CODcr） 500.0 ing·L^-1, were reduced by 86.6%, 80.3% and 70.7%, respectively, and the effluent can meet the secondary requirements of Sewage Discharge Standard （GB 8978--1996）. Furthermore, the ρ（TP） was also reduced by 49.0%, indicating that the treatment process can reduce ρ（TP） effectively. In addition, it was more effective to improve the removal rate of treated domestic wastewater by the method of inputting an aeration rate of 10.0 m3·m^3·h^-1 and inixing with effective microbe, respectively.

关 键 词：生活污水 生化处理 蛭石 有效微生物菌群 

分 类 号：X703[环境科学与工程—环境工程]