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A responding time of T95=5s was obtained from high dissolved oxygen (DO) concentration to low DO concentration. 从低溶解氧浓度到高溶解氧浓度的T_(95)响应时间约为5秒，从高溶解氧浓度到低溶解氧浓度为1分钟；
But the high dissolved oxygen (DO), low C/N and lack of mechanical agitation of MSBR limited further increase of the TN removal efficiency. 但高溶解氧（DO）、低C/N以及缺乏机械搅拌装置限制了TN去除率的进一步提高。
To remove dissolved oxygen from(a liquid,such as water). 除氧气，使脱氧从（液体，例如水）中除去不溶解的氧气
It was found that dissolved oxygen concentration (DO), HRT, sulphide influent concentration and sulphide loaden were primary impact factors. 试验结果表明：DO、HRT、进水硫化物浓度、硫化物负荷是生物接触氧化处理含硫废水的主要影响因素。
To remove dissolved oxygen from(a liquid, such as water). 除氧气，使脱氧从（液体，例如水）中除去不溶解的氧气
Opercularia coarctata had a significant negative correlation with DO, so this species indicated a lack of dissolved oxygen in the aeration tank. 集盖虫与DO呈非常显著的负相关，可作为低DO的指示生物。
The increase of dissolved oxygen will increase the corrosivity. 溶解氧含量的增加会显著加剧油田采出水的腐蚀性。
As to NH_4~+-N, main factors were orderly aeration duration, aeration volume and settling duration. Dissolved oxygen(DO) showed more effects on NH_4~+-N removal than COD removal. 影响NH_4~+-N 去除率的最主要因素为曝气时间,溶解氧(DO)浓度对NH_4~+-N 硝化反应的影响要比对COD 去除的影响大。
The result of experiment shows that sludge bulking will take place at any level of organic loading as long as the value of dissolved oxygen(DO) changes correspondingly. 实验结果表明,在低、中、高负荷时,只要溶解氧发生变化,均有可能发生膨胀。
Both dissolved oxygen (DO) control and glucose feeding could suppress acetate formation, thus enhancing nuclease production, where the former was found to be more effective. 控制溶氧浓度葡萄糖进料都可抑制醋酸的生成，因而促进核酸分解酵素之生产；其中，控制溶氧浓度是比较有效之策略。
An on-line monitoring and controlling method, which is suitable for real time monitoring and controlling the dissolved oxygen (DO) in the bioreactor tank, is provided. 一种线上摄氧率即时监控方法，适于线上即时监测与控制一生物反应槽中的溶氧浓度。
A down flow biological fluidized bed reactor (DBFB) was used to discuss the stability of nitrification through nitrite under low concentration of dissolved oxygen(DO). 采用下向流内循环生物流化床反应器,在低浓度溶解氧条件下,探讨了亚硝化过程的稳定性。
Q. Why are high dissolved oxygen levels better than air sparging or ORC? 为什么高的溶解氧浓度比空气喷射或ORC更好?
The major pollution indicators are dissolved oxygen, potassium permanganate, BOD, volatile phenol and petroleum. 主要污染指标为溶解氧、高锰酸盐指数、生化需氧量、挥发酚和石油类。
The nitrification rate is obviously increased as the temperature increases from 13 to 20In dissolved oxygen (DO) single factor experiment, the biofilter operates under three DO levels of 0.3mg/L, Img/L and 2mg/L, and ascertain the optimum DO is 1.0mg/L. 随着温度从13℃左右升高到20℃后，活性污泥段的硝化能力明显提高。在滤池段工况中，首先分别考察了DO为0.;3mg/L(不曝气)、1mg/L及2mg/L三个工况下滤池段的运行性能，确定DO=1
The paper studies the effect from Fe 2+ ,S 2- ,dissolved oxygen(DO) and pH in waste water on colloidial dispersion gel(CDG) containing polyacrylanide(HPAM) and phenolic cross linking reagent. 在对河南油田双河矿区油田污水进行全分析的基础上 ,研究了污水中 Fe2 + ,S2 -,溶解氧 (DO)及污水的 p H值对有机交联体系聚丙烯酰胺 (HPAM) -酚醛胶态分散凝胶 (CDG)成胶性能的影响。
Having waters rich in mineral and organic nutrients that promote a proliferation of plant life, especially algae, which reduces the dissolved oxygen content and often causes the extinction of other organisms. Used of a lake or pond. (湖泊等)优氧化的水中富有矿物有机物，有利于植物，特别是藻类的增殖，但藻类往往使分解的氧含量过低，从而使别的有机物灭绝。用于指湖泊或池塘
The paper reported incomings and outgoings budget of dissolved oxygen (DO) in the giant tiger prawn (Penaeus monodon) desalting culture ecosystem in estuarine area in 1997 and 1998. 本文报道了1997年与1998年河口区斑节对虾淡化养殖塘生态系中溶氧收支平衡状况。
The major pollution indicators are dissolved oxygen,potassium permanganate,BOD,volatile phenol and petroleum. 主要污染指标为溶解氧、高锰酸盐指数、生化需氧量、挥发酚和石油类。
Restricting dissolved oxygen (DO) concentration in anoxic phase through controlling aeration intensity or circumfluence channel area is beneficial to denitrification effect of MBR. 通过控制曝气强度或减小回流通道断面限制缺氧区溶解氧质量浓度，可提高MBR中的反硝化效果。