山东近海海水COD与BOD相关性研究  

Study on Correlation between COD and BOD in the Coastal Seawater of Shandong Province

作　　者：王焕卿 冯巍巍[1,2,3] 蔡宗岐 侯耀斌[1,2,3] 刘增东 WANG Huanqing;FENG Weiwei;CAI Zongqi;HOU Yaobin;LIU Zengdong(Key Laboratory of Coastal Zone Environmental Processes,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai,Shandong,264003,China;Center for Ocean Mega Science,Chinese Academy of Sciences,Qingdao,Shandong,266071,China;University of Chinese Academy of Sciences,Beijing,100049,China;Yantai Environmental Monitoring Center Station,Yantai,Shandong,264000,China)

机构地区：[1]中国科学院烟台海岸带研究所,中国科学院海岸带环境过程重点实验室,山东烟台264003 [2]中国科学院海洋大科学研究中心,山东青岛266071 [3]中国科学院大学,北京100049 [4]烟台市环境监测中心站,山东烟台264000

出　　处：《广西科学》2021年第2期125-129,共5页Guangxi Sciences

基　　金：国家重点研发计划项目(2016YFC1400601);中国科学院关键技术人才项目(科发人函字[2016]65号);烟台市重点研发计划项目(2016ZH071);中国科学院STS项目(KFJ-STS-ZDTP-055)资助。

摘　　要：传统方法检测生化需氧量(BOD)的测量时间过长问题制约着该领域的发展,而寻求化学需氧量(COD)和BOD之间的相关性,可在使用光学方法测得水体COD值的同时获得BOD值。为研究海水中COD与BOD间的关系,对山东地区多个站点海水COD、BOD、溶解氧、温度等参数进行测定,并对实验数据进行数理统计分析。结果表明,COD与温度、溶解氧、BOD之间线性相关;进一步的多元回归分析得出相关系数在0.95以上。在上述多元回归分析基础上做简化,单独分析COD与BOD之间的相关性,得出COD与BOD的一元回归方程,其相关系数为0.9486。COD与BOD之间存在线性相关性,因此可以利用此相关性,在光谱法水质监测传感器上通过测定海水COD含量间接计算出BOD含量。The measurement time of Biochemical Oxygen Demand(BOD)by conventional method is too long,which has restricted the development of this field.The search for the correlation between Chemical Oxygen Demand(COD)and BOD can achieve the optical process to measure the COD value in the water body and thus obtain the BOD value.In order to study the correlation between COD and BOD in seawater,the parameters of COD,BOD,dissolved oxygen and temperature in seawater of several stations in Shandong area were measured,and the experimental data were analyzed by mathematical statistics.The results show that there is a linear correlation between COD,temperature,dissolved oxygen and BOD.Further multiple regression analysis shows that the correlation coefficient is above 0.95.Based on the above multiple regression analysis,the correlation between COD and BOD was analyzed separately,and the univariate regression equation between COD and BOD was obtained.The correlation coefficient is 0.9486.There is a linear correlation between COD and BOD.Therefore,this correlation can be used to indirectly calculate the BOD content by measuring the COD content of seawater on the spectral water quality monitoring sensor.

关 键 词：海水 COD BOD 相关性分析 最小二乘法 水质监测 山东近海 

分 类 号：X834[环境科学与工程—环境工程]