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Water quality - Determination of chemical oxygen demand (COD). 水质。氧的化学消耗量的测定(重铬酸钾法)
Biochemical oxygen demand(BOD)is one of the most important indexes in water monitoring. 生化需氧量(BOD)是水质监测中最重要的指标之一。
The other curve shown in Fig 1.5 corresponds to the biochemical oxygen demand (BOD). 图1-5的另一曲线相当于生化需氧量（BOD）曲线。
Biochemical oxygen demand - BOD: A measure of the amount of pollution by organic substances in water. 生化物需氧量(简写为 bod):一种衡量有机物在水中的污染量的标准。
The biochemical oxygen demand (BOD 5) of 47 substituted benzenes were determined. 测定了 47种取代苯类化合物在松花江水中的 5日生化需氧量 (BOD5) .
A Preliminary Study on the Quality Control about Determinations of Biochemical Oxygen Demand after 5 Days (BOD 5). 浅谈BOD_5的质量控制
They are commonly measured in units of biochemical oxygen demand (BOD), or the amount of oxygen needed to decompose them. 常常使用生化需氧量，即有机物分解所需的氧这个单位进行测量。
Data collected in the survey was used to review the generic chemical oxygen demand (COD) values of trades subject to the Trade Effluent Surcharge (TES) scheme. 所收集的数据用于检讨计划下适用于各行业的基本化学需氧量。
Real-time monitoring of chemical oxygen demand in water and EW-2100 UV absorption water quality automatic on-line monitor. 水体化学需氧量实时在线监测与EW-2100紫外吸收水质自动在线监测仪
The chemical oxygen demand(COD)and thebiochemical oxygen demand in 5 days(BOD5)of prime sewage were more than paddy field wa-ter in SIA. 原污水的化学需氧量（COD）和5日生化需氧量（BOD5）高于污灌区稻田水；
Improvement of Biochemical Oxygen Demand (BOD_5) Determination Method and Graphical Method of Handling BOD Test Results. 生化需氧量(BOD_5)测定方法的改进和数据的图解法处理
The results showed that the removal efficiency of chemical oxygen demand (COD) and decoloration efficiency were above 95%. 结果表明，经过该法处理后，废水中的化学需氧量（Chemical Oxygen Demand ，COD）和色度的去除率都在95 %25 以上。
BOD(biochemical oxygen demand)is an important index to eva-luate the quality of water in environmental monitoring and sewage treatment. BOD;即生化需氧量;是环境监测与污水处理中评价水质的一项重要指标.
Biochemical oxygen demand, BOD is necessary for water quality evaluation. It is an important index in measuring organic materials pollution. 生物化学需氧量BOD是水质评价的必测项目,是衡量有机物对水质污染的重要质量指标。
After the treatments, the amount of oxygen demands can reach: COD<65 mg/L. 处理后污水化学需氧量可以达到 :COD <6 5mg/L。
With the instance of chemical oxygen demand concentration of Osaka Bay in Japan, a nice effect of the application of this method is presented. 以日本大阪湾的COD浓度为例 ;取得了良好的拟合及预测效果 ;从而具有广泛的应用前景 .
Total organic carbon (TOC) and chemical oxygen demand (COD) and biological oxygen demand (BOD5) are commonly used to show organic polutant water. 在水质监测中通常应用TOC、COD、BOD_5间接反映水体受到有机物污染的程度。
Oxygen demand for iron and manganese removal in biofilter was discussed by means of theoretical calculation and experiment. 从理论计算和试验两方面探讨了生物除铁除锰滤池中的曝气溶氧问题。
The effect of chemical oxygen demand (COD) and hardness of wastewater on removal efficiency of ammonia using cation-exchange resin was analysed. 研究表明,在对炼油污水进行深度处理时,污水的COD、硬度严重影响树脂对氨、氮的吸附。
The so-called chemical oxygen demand (COD), is under certain conditions, a strong oxidizer used for water treatment, the amount of capacity. 所谓化学需氧量（COD），是在一定的条件下，采用一定的强氧化剂处理水样时，所消耗的氧化剂量。