摘要
研究了风车草人工湿地污水处理系统TN去除率及氮转化细菌的数量。结果表明:风车草人工湿地对TN的去除率为73.8％,与无植物人工湿地系统相比较,去除率提高了17.4％。风车草人工湿地氨化细菌为7.98×10~5cfu·g^(-1)(细砂),硝化细菌为1.95×10~5MPN·g^(-1)(细砂),反硝化细菌为5.89×10~41.95×10~4MPN·g^(-1)(细砂)。与无植物系统氮转化细菌相比,氨化细菌无明显差异,硝化细菌及反硝化细菌均高出1个数量级。
Nitrogen removal and nitrogen-transformation bacteria in C.alternifolius contructed wetland wastewater
treatment system were studied. The removal rate of TN in the contructed wetland with C alternifolius were 73.8%;
Compared with unplanted constructed wetland system, the removal rate of TN raised 17.4%. The amount of ammonifying
bacteria, nitrobacteria and denitrifying bacteria in C.alternifolius constructed wetland were 7.98×10~5cfu·g^(-1)(sand), 1.95×10~5
MPN·g^(-1) (sand) and 5.89×10~4 MPN·g^(-1) (sand), respectively; In contrast to unplanting system, the amount of ammonifying
bacteria had no obvious difference,but the amount of nitrobacteria and denitrifying bacteria were 1 order of magnitude higher
than those in the unplanted system.
出处
《生态科学》
CSCD
2004年第1期89-91,共3页
Ecological Science
基金
广东省教育厅自然科学基金(200022)
关键词
风车草
人工湿地
氮转化细菌
氨化细菌
硝化细菌
反硝化细菌
Cyperus alternifolius
Constructed wetland
Nitrogen-transformation bacteria
Ammonifying bacteria
nitrobacteria
Denitrifying bacteria
