阿科蔓生态沟渠强化处理D-A^2O工艺出水研究  

Enhancing Effluent Quality of Step-feed D-A^2O Reactor by Optimizing Configuration of AquaMats Eco-ditch

作　　者：叶长兵[1,2] 周志明[3] 刘琴[1] 李明[1] 张晶晶[1] 

机构地区：[1]玉溪师范学院资源环境学院,云南玉溪653100 [2]中国科学院南京地理与湖泊研究所,江苏南京210008 [3]吉林建筑大学市政与环境工程学院,吉林长春130118

出　　处：《中国给水排水》2014年第15期143-146,共4页China Water & Wastewater

基　　金：云南省科技厅项目(2010CD089)

摘　　要：设计了1#(沉水型)、2#(挺水型)、3#(50%沉水型+50%挺水型)阿科蔓生态沟渠,分别强化处理分区进水式D-A2O装置出水。结果表明,3套阿科蔓生态沟渠连续运行30 d后启动成功;生态沟渠的阿科蔓最优配置为50%沉水型阿科蔓+50%挺水型阿科蔓,且其最佳HRT为9h。控制3#生态沟渠于最佳HRT、水温为(24±1)℃条件下运行,其对COD、TN、NH3-N、TP的平均去除率分别可达55.30%、57.78%、58.10%、54.08%。基于试验结果,阐明了3#阿科蔓生态沟渠所具有的双层分阶段多生物相特点和阿科蔓生态基的微孔结构是其污染净化能力较强的主要原因。1#, 2#, 3# AquaMats eco-ditches were designed to treat the effluent from step-feed D- A20 reactor. The results indicated that the three eco-ditehes were started up successfully after continu- ously operating for 30 days. The optimal configuration of AquaMats in eco-ditch was 50% of SDF with 50% of BDF, and the optimal hydraulic retention time （HRT） was 9 h. Under these conditions, the av- erage removal rates of COD, TN, NH3 - N and TP in 3# AquaMats eco-ditch were 55.30% , 57.78% , 58.10% and 54.08% at （24 ＋ 1） ℃, respectively. Based on the trial results, the mechanisms of 3# AquaMats eco-ditch in efficient treatment of the effluent from step-feed D-A20 reactor were owed to doub- le layer staged multi-phase and micropore structure of AquaMats eco-base.

关 键 词：阿科蔓生态沟渠 D-A^20工艺 双层分阶段多生物相 

分 类 号：X703[环境科学与工程—环境工程]