摘要
藕田湿地对农村农田环境污水的净化作用非常明显,能有效降低污水中的COD、总氮、总磷、铵态氮和SS浓度。处于生长期和成熟期的藕田湿地效果最好,对上述5种指标的平均去除率分别达到70%、75%、60%、40%、70%以上;而处于后期的湿地系统则稍差,平均去除率均有不同程度的降低,但SS除外,不同时期的湿地系统对SS的去除率均能达到90%。
The purification effect of the lotus fields on the rural sewage is obvious, which can effectively reduce the concentration of COD, total nitrogen, total phosphorus, ammonium nitrogen and SS. The removal rates of lotus fields during the age of growing and mature are higher than the latter growing age and reach above 70%, 75%, 60%, 40% and 70% respectively. And the removal rate of SS can reach 90% during the all growing time.
出处
《广东农业科学》
CAS
CSCD
北大核心
2013年第19期183-185,共3页
Guangdong Agricultural Sciences
关键词
藕田
湿地
生活污水
lotus fields
wetland
rural sewage
