棘洪滩水库水环境监测及引水建议  

Water environment monitoring and water transfer suggestions of Jihongtan Reservoir

作　　者：刘玉华 刘浩 万年新 LIU Yuhua;LIU Hao;WAN Nianxin(Jihongtan Reservoir Management Station of Shandong Water Diversion Project Operation and Maintenance Center,Qingdao 266111,Shandong,China;Weihai Branch of Shandong Water Diversion Project Operation and Maintenance Center,Weihai 264200,Shandong,China)

机构地区：[1]山东省调水工程运行维护中心棘洪滩水库管理站,山东青岛266111 [2]山东省调水工程运行维护中心威海分中心,山东威海264200

出　　处：《水利水电技术(中英文)》2024年第S2期58-63,共6页Water Resources and Hydropower Engineering

摘　　要：详细分析了2021~2023年棘洪滩水库TN、TP、COD_(Mn)和浮游藻类细胞密度的年内变化。TN最高值出现在2023年入水口的3月份,为4.46 mg/L,最低值出现在2021年的出水口的10月份,为0.82 mg/L。TP和COD_(Mn)年内变化不大,TP2021~2023年的月监测值在0.005 mg/L至0.05 mg/L间波动。COD_(Mn)2021—2023年月监测值在2.1 mg/L至4.5 mg/L间波动。浮游藻类细胞密度月监测值冬春季偏低,夏秋季升高,入出水口最高值均出现在2022年的10月份,分别为149.17×10^(6)cells/L和205.94×10^(6)cells/L。细胞密度变化规律与TN质量浓度变化规律相反,分析是由于夏秋季温度升高,浮游藻类大量繁殖带走了营养盐而使TN含量下降。采用内梅罗指数法对水库近10年水质进行评价,得出质量等级均为一级清洁水或二级良好级,水质保持良好,可确保正常供水。Annual changes of TN,TP,COD_(Mn) and phytoplankton cell density in Jihongtan Reservoir in 2021,2022 and 2023 were analysed in detail.The highest value of TN was 4.46 mg/L at the inlet in March of 2023,the lowest value was 0.82 mg/L at the outlet in October of 2021.The values of the TP and COD_(Mn) have changed little in the year,the monthly monitoring value for the TP from 2021 to 2023 fluctuated between 0.005 mg/L and 0.05 mg/L,and the COD_(Mn) from 2021 to 2023 monthly monitoring value fluctuated between 2.1 mg/L and 4.5 mg/L.Monthly monitoring value of phytoplankton cell density was low in winter and spring and increased in summer and autumn,the highest values all appeared in October of 2022,with 149.17×10^(6)cells/L at the inlet and 205.94×10^(6)cells/L at the outlet。Respectively,the changes of cell density was contrary to that of TN mass concentration,the value of TN content decreased because mass propagation of plankton algae due to increased temperatures in summer and autumn took away the nutrient salts.The water quality was assessed by Nemelo index method.The water quality of the reservoir is currently Grade 1 clean or Grade 2 good,and the water quality remains good to ensure normal water supply.

关 键 词：棘洪滩水库 水质监测 理化指标 浮游藻类 水质评价 引水建议 

分 类 号：X832[环境科学与工程—环境工程]