摘要
对于用人工下行流芦苇床处理污水的技术进行了研究。实验结果显示:这类芦苇床具有较好的耗氧处理能力,能够明显地降低污水的BOD5和COD;SS、PO4-P和NH4-N也可得到一定的去除;BOD5与COD的去除速率随有机负荷的增加而增加,随水力负荷的增大而减小,增加进水频率有利于提高其去除效果;BOD5的去除可认为由吸附与生物耗氧降解两步进行。在此基础上提出了有关的设计方程。
Studies were carried out on wastewater treatment using constructed downflow reed beds.Experimental results indicate that significant BOD5 and COD reductions can be obtained in these beds owing to their good areobic treatment ability,considerable amounts of SS.PO4-P and NH4-N can be removed,and the removal rates of BOD5 and COD increase with organic load and feeding frequency and decrease with hydraulic loading.A design equation for this downflow reed beds was set up based on an assumption of BOD5 removal caused by the consecutive processes of adsorption and aerobic microbial decomposition.
出处
《中国给水排水》
CAS
CSCD
北大核心
1997年第S1期4-6,2,共4页
China Water & Wastewater
关键词
人工湿地
下行流芦苇床
设计
Constructed wetland
Downflow reed bed
Wastewater treatment.