1)Chemical oxygen demand COD化学需氧量COD
2)chemical oxygen demand化学需氧量(COD)
英文短句/例句
1.Progress in new methods for rapid determination of chemical oxygen demand (COD)化学需氧量(COD)快速测定新方法研究进展
2.The total discharge amount of COD in the waste water is 14.065 million tons, 2.7% less than the previous year.废水中化学需氧量（cod）排放总量1406.5万吨，比上年减少2.7%。
3.Chemical Oxygen Demand--Total [CODt]化学需氧量（总数）
4.Chemical Oxygen Demand--Settled [CODs]化学需氧量（沉淀）
5.The Changes of Inorganic Nitrogen、Active Phosphorus and Chemical Oxygen Demand(COD) at Guanhe River Estuary in the North of Jiangsu Province苏北灌河口海域水体中氮、磷及化学耗氧量（COD）的变化研究
6.Study on Measurement of Chemical Oxygen Demand in Seawater by Ozonation Chemiluminescence;臭氧法COD测量仪测量海水COD的研究
7.determination of the chemical oxygen demand化学需氧量的测定方法
8.Design and Implementation of COD Testing Apparatus Based on Electrochemistry;电化学法COD测量仪的设计与实现
9.Comparison of Permanganate Index, COD and BOD辨析高锰酸盐指数、化学需氧量、生化需氧量
10.Development of Seawater Chemical Oxygen Demand Measurement Instrument Based on Ozone Analysis臭氧法海水化学需氧量测量仪的研制
11.Industrial circulating cooling water--Determination of the chemical oxygen demand --Potassium permanganate methodGB/T15456-1995工业循环冷却水中需氧量(COD)的测定高锰酸钾法
12.Determination of Pulping Effluent COD Using Derivative Spectrophotometry-Chemometrics Method导数光谱-化学计量学方法测定制浆废水COD
13.quantitative analysis of BOD生物化学需氧量的定量测定
14.Reaseach on Measurement of Chemical Oxygen Demand in Seawater by Flow Injection Ozonation Chemiluminescence;流动注射臭氧氧化化学发光法测量海水化学需氧量的研究
15.Rapid determination of chemical oxygen demand using a nano-TiO_2-and-K_2Cr_2O_7 photocatalytic oxidation system纳米二氧化钛重铬酸钾协同光催化氧化体系快速测定化学需氧量
16.automatic BOD analyzer生物化学需氧量自动分析仪
17.Determination of COD in Wastewater by Potassium Dichromate Colorimetric Method重铬酸钾比色法测定水中化学需氧量
18.Microwave digestion spectrophotometric determination of COD微波消解光度法测定水中化学需氧量
相关短句/例句
chemical oxygen demand化学需氧量(COD)
3)chemical oxygen demand(COD)化学需氧量(COD)
1.The effective factors such as content of SEPZ,aeration mode,biodegradation temperature and initial chemical oxygen demand(COD) were investigated.考察了菌种浓度、曝气方式、降解温度、初始化学需氧量(COD)等因素对降解效果的影响。
4)COD[英][,si: ?? 'di:][美]['si 'o 'di]化学需氧量(COD)
1.The functions of flotation reagents pollution to water were described in this paper,and the contribution of chemical oxygen deman(dCOD) caused by flotation reagents were studied,the specific methods and approaches were put forward to exploring the water resources protection and sustainable development of mining area.文中对矿山浮选药剂的水体污染作用进行了阐述,并对各种浮选药剂对水体化学需氧量(COD)的贡献进行了试验研究,为矿区水资源保护和可持续发展提出了途径和方法。
5)Chemical oxygen demand (COD)化学需氧量(COD)
6)chemical oxygen demand(COD) removal化学需氧量(COD)去除
延伸阅读
化学需氧量 水体中能被氧化的物质在规定条件下进行化学氧化过程中所消耗氧化剂的量，以每升水样消耗氧的毫克数表示,通常记为COD。水中各种有机物进行化学氧化反应的难易程度是不同的，因此化学需氧量只表示在规定条件下水中可被氧化物质的需氧量的总和。化学需氧量主要反映水体受有机物污染的程度。 当前测定化学需氧量常用的方法有：①高锰酸钾法：用0.01N 高锰酸钾的酸性溶液为氧化剂,加入水样,煮沸10分钟，或者将水样放在沸水浴中煮30分钟，然后将高锰酸钾消耗量折算成每升水样耗氧的毫克数。此法多用于测定较清洁的水样。测定结果在1毫克/升以下表示水体很清洁；大于3～4毫克／升者表示水体已受到明显污染。②重铬酸钾法:以0.250N 重铬酸钾强酸溶液为氧化剂,以硫酸银为催化剂,加入水样,使之回流两小时,然后将重铬酸钾的消耗量折算为每升水样耗氧的毫克数。此法的氧化程度比高锰酸钾法高，用于污染严重的水和工业废水的水样。同一水样用上述两种方法测定的结果是不同的，因此在报告化学需氧量的测定结果时要注明测定方法。
