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    • 2. 发明专利
    • Water quality estimating apparatus and water quality estimating method
    • 水质评估装置和水质评估方法
    • JP2010169598A
    • 2010-08-05
    • JP2009013685
    • 2009-01-23
    • Nihon Suido Consultants Co Ltd株式会社日水コン
    • YOSHIMOTO HIDEYUKIMUTO FUMIOHIRAI MASARO
    • G01N33/18G01N27/416
    • PROBLEM TO BE SOLVED: To grasp a more accurate BOD of water without measuring the BOD of evaluation object water. SOLUTION: A water quality estimating apparatus includes at least an arithmetic device 2 accepting turbidity of water, electrical conductivity (EC), concentration of dissolved oxygen (DO), and the biochemical oxygen demand (BOD). The arithmetic device 2 comprises: a ratio calculating section 24; a time period selecting section 25; a measurement value acquiring section 26 acquiring each measurement value of the BOD, the turbidity, and the concentration of the DO; a first power regression creating section 27 creating a first power regression which takes each acquired measurement value of the BOD and the turbidity as each coordinate; a BOD calculating section 28 calculating an estimation value of the BOD by the first power regression formula; a second power regression formula creating section 29 creating a second power regression formula which takes a ratio of the measurement value of the BOD to the estimation value of the BOD and the measurement value of the concentration of the DO as each coordinate; and an estimation formula creating section 30 creating a BOD estimation formula for calculating the estimation value of the BOD by both the formulas. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在不测量评估对象水的BOD的情况下掌握更准确的水体BOD。 解决方案:水质估计装置至少包括接受水浊度,电导率(EC),溶解氧浓度(DO)和生化需氧量(BOD))的运算装置2。 算术装置2包括:比率计算部24; 时间段选择部25; 测量值获取部分26获取BOD的每个测量值,浊度和DO的浓度; 第一功率回归创建部分27创建将每个所获取的BOD测量值和浊度作为每个坐标的第一功率回归; BOD计算部28,计算第一功率回归公式的BOD的估计值; 第二功率回归公式生成部分29,产生将BOD的测量值与BOD的估计值的比值和DO的浓度的测量值作为每个坐标产生的第二功率回归公式; 以及估计公式生成部30,生成用于通过两个公式计算BOD的估计值的BOD估计公式。 版权所有(C)2010,JPO&INPIT