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。
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。
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
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%。
Chemical Oxygen Demand--Total [CODt]
化学需氧量（总数）
Chemical Oxygen Demand--Settled [CODs]
化学需氧量（沉淀）
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
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
determination of the chemical oxygen demand
化学需氧量的测定方法
Design and Implementation of COD Testing Apparatus Based on Electrochemistry;
电化学法COD测量仪的设计与实现
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
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
Industrial circulating cooling water--Determination of the chemical oxygen demand --Potassium permanganate method
GB/T15456-1995工业循环冷却水中需氧量(COD)的测定高锰酸钾法
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
quantitative analysis of BOD
生物化学需氧量的定量测定
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
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
automatic BOD analyzer
生物化学需氧量自动分析仪
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
Microwave digestion spectrophotometric determination of COD
微波消解光度法测定水中化学需氧量