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- Aim To make a study on research to examine the influent COD concentration effects on biological denitrifying dephosphatation. 摘要目的研究碳源浓度变化对同步反硝化聚磷的影响。
- Hydraulic retention time(HRT) was 24 h during the experiment,The influent COD concentration was 500,1 000,1 500,2 000 mg/L during the start-up,the COD removal reached 93.48% and kept stable after 42 days,the start-up finished. 进水COD浓度分别为500;1 000;1 500;2 000 mg/L;42天后COD去除率达到93.;48%25;并且保持稳定;反应器启动完成。
- influent COD concentration 进水COD浓度
- The first major subdivision of the total influent COD (Sti) is into biodegradable (Sbi) and unbiodegradable (Sui) fractions. 而且投标文件把不同分类COD的值也列出来了，这个基本是按照新活性污泥的体系来分析。
- With HRT=6 h and influent COD increased gradually,particle sludge was tamed then effluent pH and COD removal rate was heading for stability 20 days after the operation. 在水力停留时间(HRT)6 h,进水COD逐渐提高的情况下对颗粒污泥进行驯化,20 d后pH、COD去除率趋于稳定。
- When the influent COD load is F=8.60g/(m~2d), influent ammonia nitrogen is 25 mg / L, 15 mg / L, 40 mg / L, through step feed in the first, second stages of the RBC, ammonia conversion rate can increase to more than 90%. 在进水COD盘面负荷为F=8.;60g/(m~2·d);进水氨氮分别为为25mg/L、15mg/L、40mg/L时;通过在一、二级转盘分点进水;可使氨转化率提高至90%25以上。
- The paper based on experiments, describes, the start-up process of the machinery stirring UASB reactor handling the high COD concentration organic wastewater. 本文以实验为根据,论述了机械搅拌UASB反应器处理高浓度有机废水的成功启动过程。
- By replacing the high-cost special reagents of HACH with the self-prepared digestion solution, the spectrophotometry was used to determine COD concentration in sewage. 以自配消解液代替成本较高的HACH专用试剂;采用分光光度法测定了污水.;的COD浓度;对影响测定结果的诸多因素进行了试验研究;确定了最佳操作条件。
- In the ATA experiment, the COD concentration of experimental wastewater was about 5000mg/L. when the dilution was 40.0%, the experimental wastewater had a maximum COD removal efficiency of 97.9%. ATA实验中;当实验废水稀释度为40.;0%25时;COD_(Cr)去处率最高可以达到97
- The influence of different COD concentrations and kinds of electrolyte to treatment efficiency was investigated, and satisfied results of 90% COD removal and 95% color removal were achieved. 研究了进水浓度、不同电解质的作用对处理效果的影响,获得了COD去除率大于90%25、色度去除率大于95%25的处理效果。
- The cod was salted away for future use. 鳕鱼已用盐腌起留着日后吃。
- He bought a canned cod and a sandwich as supper. 他买了一个鳕鱼罐头和一个三明治作晚饭。
- We will serve smoked cod's roe at the dinner. 宴会上我们将上一道熏鳕鱼子。
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- One engaged in cod fishing off Newfoundland. 捕鳕鱼者，鳕渔船纽芬兰沿海的从事捕鳕鱼的渔民或渔船
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- There is a concentration of people in big cities. 大城市人口集中。
- influent COD 进水COD
- He seized every chance to break out of the Nazi concentration camp. 他抓住一切机会从纳粹集中营跑出来。
- A state of mental concentration. 专心致志，全神贯注全神贯注的状态
