We will strengthen energy conservation and emissions reduction and impose a ceiling on total energy consumption . This year we aim to cut energy intensity by more than 3.9 % . The emissions of sulfur dioxide and chemical oxygen demand will both be reduced by 2 % .

加大节能减排力度，控制能源消费 总量，今年能源消耗强度要降低3.9%以上，二氧化硫、化学 需氧 量排放量都要减少2%。

The water quality indexes including total nitrogen ( TN ) total phosphorus ( TP ) the chemical oxygen demand ( CODcr ) and pH value were respectively determined by alkaline potassium persulphate digestion-UV spectrophotometric method ammonium molybdate spectrophotometric method dichromate method and pH meter .

分别用碱性过硫酸钾消解紫外分光光度法、比色法、重铬酸盐法测定了灌溉前后灌溉水水质指标总氮、 总磷、化学 需氧 量（CODcr），同时测试pH值。

The oxygen consumption characteristics of the organic matter in the sediment-water interface as well as the proportions of the biological and chemical oxygen consumption in the total oxygen demand are discussed .

探讨了底质-水界面有机物的耗氧特点及 总 耗 氧中生物耗氧和非生物耗氧所占比例。

Total oxygen demand automatic recorder

总 需氧 量自动记录仪

Researching the Relationship between Total Organic Carbond and Chemical Oxygen Demand of Guangzhou Creek Water

广州市区河涌水中 总有机碳与化学 需氧量的相关性研究

For Zizania latifolia the concentrations of total nitrogen and chemical oxygen demand would increase in the late period of its decomposition and lead to the deterioration of water quality .

在挺水植物芦苇的腐解过程中，水体的化学 需氧量、 总氮、总磷浓度最低；茭草在分解后期，会引起水体的 化学 需氧 量、总氮浓度上升，导致水质变差。

Correlation of total organic carbon with permanganate index and chemical oxygen demand

总有机碳与高锰酸盐指数及化学 需氧 量的相关性

The concentrations of total nitrogen and chemical oxygen demand in containers with Nymphoides peltatum and Nelumbo nucifera were higher than other four plants .

浮叶植物荇菜、莲分解过程中，化学 需氧 量、 总氮浓度均要高于其他几种植物。

Study on the Correlation of Total Organic Carbon With Chemical Oxygen Demand and Biochemical Oxygen Demand in Water

养殖水中 总有机碳与化学 需氧 量和生化需氧量相关性的研究

The water pollution sources in Fushun city were investigated in 2002 . The results showed that the total emission amount of chemical oxygen demand in Fushun was 58 thousand tons and 27 thousand tons COD drained into Hunhe river .

于2002年对抚顺市辖区内水污染源进行了调查。结果表明：抚顺市 COD排放 总量为5.8万吨，入浑河总量2.7万吨。

The total oxygen demand ( TOD ) means consuming oxygen quantity when organic component in water was burnt up to the stable oxidate .

讨论了影响水中 总 需氧 量（TOD）测定的因素。

Total discharge of major pollutants significantly reduces for example the chemical oxygen demand and sulfur dioxide emissions were reduced by 8 % ammonia nitrogen oxides emissions were reduced by 10 % .

主要污染物排放 总量显著减少，化学 需氧 量、二氧化硫排放分别减少8%，氨氮、氮氧化物排放分别减少10%。

Ozonization reduced the contents of total dissolved solids and oxygen demand and decomposed some reductive contaminants such as ammonia cyanide and phenols .

臭氧处理使溶解性 总固体含量和 耗 氧量略有减少，对矿泉水的一些还原性污染物如氨、氰化物和酚类化合物有不同程度的降低；