1) nitrogen oxygen demand
硝化需氧量
2) COD
[英][,si: əʊ 'di:] [美]['si 'o 'di]
化学需氧量
1.
Comparison of Monitoring COD in Water with Rapid Monitoring Method and Potassium Dichromate Method;
快速测定法和重铬酸钾法测定水中化学需氧量之比较
2.
DETERMINATION OF COD IN WASTEWATER EFFLUENTS BY MERCURY-FREE CLOSE-TUBE METHOD;
无汞盐密封法测定高氯浓度水样的化学需氧量
3.
The Proficiency Testing of Lower COD in Water is Verified;
水中超低浓度化学需氧量检测的能力验证
3) chemical oxygen demand(COD)
化学需氧量
1.
Development of Determination of Chemical Oxygen Demand(COD) by UV Absorption Spectrum;
紫外吸收光谱法直接测定化学需氧量的研究进展
2.
A method is proposed for the determination of chemical oxygen demand(COD) in environmental water samples with merging zone stop-flow injection spectrophotometry in KMnO4 system.
研究了KMnO4体系流动注射合并带停留分光光度法对环境水样中化学需氧量(COD)测定的试验条件,包括反应试剂KMnO4的浓度、载流H2SO4的酸度、采样泵泵速及停留时间、反应温度、试剂体积和采样环体积。
3.
To rapidly determine the pollution extent of wastewater,the potential of near infrared(NIR) spectroscopy for measurement of chemical oxygen demand(COD) in wastewater was investigated.
为快速确定废水的污染程度,研究了运用近红外光谱法测量废水化学需氧量(COD)的可行性。
4) biochemical oxygen demand
生化需氧量
1.
A method of access to the inoculation fluid in determination of biochemical oxygen demand
生化需氧量测定中获得接种液的一种方法
2.
Taking biochemical oxygen demand as an example,the process of setting up worksheet is explained.
以生化需氧量数据处理为例,说明Excel电子工作表建立的过程。
3.
The present study has been undertaken to measure and monitor the water quality parameters: Chemical oxygen demand,Five days biochemical oxygen demand,dissolved oxygen,ammoniac nitrogen,permengemand index of oxygen demand,phosphorus,fluoride and chlorine of the two sections(Zhoukou(1),Mamenzhashang) in Zhou-Luo reach of the Shahe River from 2004-01 to 2006-05.
通过对沙河周-漯段河水水质的化学需氧量、5日生化需氧量、氨氮、总磷、高锰酸盐指数、溶解氧、氟化物、氯化物8个参数在2004年1月-2006年5月的监测和研究,总结了近几年沙河水质的变化规律,并比较了不同断面的水质,找出了颖河汇入沙河时对沙河水质的影响。
5) CODcr
化学需氧量
1.
Study of detections for the CODcr in the waste water with model JHR-1 saving energy COD thermostatic heater;
JHR-1型节能COD恒温加热器测定废水中化学需氧量(CODcr)方法探讨
2.
The result showed that the effluent condition was very stable and had a high CODcr removal rate, the average removal rate was between 75 % and 80 % and the hydrophilicity of fiber could greatly improve the effluent condition.
结果表明:处理后出水稳定,化学需氧量CODcr去除率高,平均CODcr去除率在75%￣80%;改善填料的亲水性能有利于提高出水水质,选用的聚丙烯腈纤维和聚乙烯醇纤维在同等处理条件下的处理效率分别高出参照纤维聚丙烯6。
3.
Ultraviolet spectrophotometry is used to determine the CODCr of landfill leachate.
采用紫外分光光度法对垃圾渗沥液中的化学需氧量(Chemical Oxygen Demand,CODCr)进行了测定。
6) BOD
[英][bɔd] [美][bɑd]
生化需氧量
1.
Analysis of Microbial Membrane's Characteristics of BOD Biosensor with Escherichia Coli;
大肠杆菌生化需氧量传感器生物膜性能研究
2.
BOD Biosensor for Seawater Using Bacillus Licheni Formis;
地衣芽孢杆菌海水生化需氧量传感器研究
3.
Biochemical oxygen demand, BOD is necessary for water quality evaluation.
根据生化需氧量公式y(t)=L1=La(1-e-k12y),且[t/y(t)]1/3-y是线性关系,由直线的斜率和截距便可以求出耗氧系数k1和水中总的生化需氧量La。
补充资料：比需氧量
分子式：
CAS号：
性质：指每单位质量(干重)微生物，在单位时间内所需要摄取的氧量，常以m mol/(g•h)表示。
CAS号：
性质：指每单位质量(干重)微生物，在单位时间内所需要摄取的氧量，常以m mol/(g•h)表示。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条