摘要
定期监测45°阶梯式溢流堰坝体上下的溶解氧及水质指标变化,研究阶梯式溢流堰对不同浓度污染水体有机污染及营养盐的影响。结果表明,水体经45°阶梯式溢流堰后,IMn、NH3-N、TP得到有效降低,当坝上的IMn低于19.00mg·L-1,IMn降低率较高,高于5.80%;当坝上的IMn高于19.00mg·L-1,IMn降低率较低,低于5.80%。当坝上NH3-N质量浓度小于19mg·L-1时,NH3-N去除率较低,低于5.00%,当坝上水体NH3-N质量浓度大于19mg·L-1时去除率较高,高于8.00%。水体经溢流堰后TP的降低值与坝上TP质量浓度呈显著的线性关系,线性方程为ΔTP=0.2015TPA-0.1999,但坝上TN浓度对TN去除率无直接联系。
he influence of the stepped spillway on organic contaminants and nutrients was studied by fixing two sample points of the 45° stepped spillway and monitoring the change of the dissolved oxygen and the water quality change timely. It indicated that the content of IMn, NH3-N, TP reduces after the stepped spillway when the content of IMn, under 19.00 mg·L^-1, the rate of depress is greater than 5.80%; when the content of IMn exceeds 19.00 mg·L^-1, the rate of depress is lower than 5.80%. when the content of NH3-N under 19.00 mg·L^-1, the rate of depress is lower than 5.00%, the content of NH3-N exceeds 19.00 mg·L^-1, the rate of depress is greater than 5.00%. the relationship of the added value and the TP concentration of the peak at the spillway is linear, the linear equation is ATP =0.2015 TPA-0.1999,the TN concentration of the peak at the spillway is not connection to the change of the TN.
出处
《水处理技术》
CAS
CSCD
北大核心
2009年第10期40-43,62,共5页
Technology of Water Treatment
基金
南京信息工程大学科研启动基金项目(90214)
