摘要
为了解亭下水库底泥中污染因子对上覆水的影响,选取2个代表性点位采集底泥柱状样进行氮磷及锰的释放特性研究。研究结果表明,静态试验条件下,2个点位底泥磷的释放速率分别为0.270 mg/(m^2·d)和0.060 mg/(m^2·d);氨氮的释放速率分别为1.860 mg/(m^2·d)和0.830 mg/(m^2·d);锰的释放速率分别为23.390mg/(m^2·d)和10.340mg/(m^2·d)。溶解氧是控制底泥中氮磷及锰释放的主要因素,可通过曝气措施消减水库中氮磷含量,控制底泥中锰的释放,进而改善水库水环境质量和水质。
In order to understand the influence of pollution factors from reservoir sediment on the overlying water,sediment column samples were analyzed with release experiment of nitrogen and phosphorus and manganese. The results showed that the two points of sediment phosphorus release rate were 0.270 mg/（m^2·d）and 0.060 mg/（m^2·d）; ammonia nitrogen release rate were 20.930 mg/（m^2·d） and 6.820 mg/（m^2 · d）; and release rate of manganese were 23.390 mg/（m2 · d）and 10.340 mg/（m^2·d）. Dissolved oxygen（DO） is the main factor to control the release of nitrogen phosphorus and manganese. Some engineering measures such as aerating are recommended to reduce nitrogen phosphorus and manganese content and improve the water quality of the reservoir.
作者
刘丽敏
顾重武
曾燕燕
LIU Li - min;GU Chong - wu;ZENG Yan- yan(Zhejiang Surveying Institute of Estuary and Coast,Hangzhou 310010,Zhejiang,China)
出处
《浙江水利科技》
2018年第4期1-4,共4页
Zhejiang Hydrotechnics
基金
浙江省省属科研院所扶持专项(2017F50002)
浙江省水利厅科技计划项目(RB1608)
关键词
亭下水库
底泥
氨氮
总磷
溶解态锰
Tingxia Reservoir
sediment
ammonia nitrogen
total phosphorus
dissolved manganese
