摘要
为探究微生物强化净化系统对城市小型浅水湖泊的水质净化效果,进行了为期5个月的现场试验。结果表明,CODMn和NH3-N的总体去除率分别为39.5%、54.6%,TN和TP无明显去除效果,监测涉及的各项水质指标除TN外均在地表水Ⅴ类标准范围内;试验湖湾主要受磷素限制,而微囊藻的种群密度变化可能影响上层水体TP质量浓度。通过控源截污和微囊藻抑制措施并举可更好地保障和提升水质。
In order to explore the effect of enhanced microbial purification system on water quality of an urban small shallow lake,a five-month field test was conducted.The results showed that the removal rates of CODMn and NH3-N were 39.5% and 54.6%,respectively,and the removal effect of TN and TP was not obvious.Except for TN,other monitoring water quality indicators can meet the V level of Environmental quality standards for surface waters.Average ratio of TN/TP was 26.99±4.35 and indicated a phosphorus-limitation in the experimental water.The experimental bay was mainly restricted by phosphorus,and the biomass of Microcystis may influence the mass concentration of TP in the upper water.The water quality can be better guaranteed and improved by sewage interception and growth inhibition of Microcystis.
作者
成豪
CHENG Hao(Chongqing Architectural Design Institute Co.,LTD.Chongqing 400015,China)
出处
《四川环境》
2020年第6期7-10,共4页
Sichuan Environment
关键词
碳素纤维生态草
城市小型浅水湖泊
水质净化
微囊藻
Carbon-fiber ecological grass
urban small shallow lake
water purification
Microcystis
