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1)  anaerobic HRT
厌氧水力停留时间
1.
The results show that lack of carbon source,especially VFA,in the influent and shorter anaerobic HRT are key factors to limit nutrient removal.
结果表明,进水中的碳源特别是挥发性脂肪酸(VFA)不足和厌氧水力停留时间(HRT)太短是导致脱氮除磷效果不佳的主要原因。
2)  hydraulic retention time
水力停留时间
1.
Experimental results showed during the short time of hydraulic retention time,when the volumetric loading rate was less than 2 kg COD/(m3·d),the COD removal exceeded 70%;its effluent pH value was kept at the level of about 6.
结果表明,在水力停留时间较短范围内,当容积负荷小于2kgCOD/(m3·d)时,COD去除率可达70%以上;出水的pH值稳定在6。
2.
The influences of operation conditions such as hydraulic retention time(HRT) and volume ratio of air to water on treatment effects were researched,and the stability running performance of the experimental installation were investigated too.
研究了水力停留时间(HRT)、气水体积比等操作条件对处理效果的影响,并考察了该实验装置的稳定运行性能。
3.
The effect of DO(dissolved oxygen),C/N(carbon/nitrogen),MLSS(mixed liquor suspended solids) and HRT(hydraulic retention time) on the SND(simultaneous nitrification and denitrification) in MBR(membrane bioreactor) and the SND mechanism in aerobic reactor is studied .
通过控制膜生物反应器(MBR)中溶解氧(DO)浓度、碳氮比(C/N)、污泥浓度(MLSS)和水力停留时间(HRT)等摸索了实现同步硝化反硝化的工艺条件,同时对好氧反应器中实现同步硝化反硝化的机理进行了探讨。
3)  hydraulic retention time(HRT)
水力停留时间
1.
The effect of hydraulic retention time(HRT),plant,packing and hydraulic flow state on purification efficacy and oxygen state was studied in artificial wetland.
试验研究了人工湿地中水力停留时间、植物、填料和水力流态对净化效率和氧状态的影响。
2.
On the basis of which some key factors such as Hydraulic Retention Time(HRT),Dissolved Oxygen(DO),and Sludge Retention Time(SRT) were investigated to figure out their effects on the treatment effectiveness.
在此基础上,考察了水力停留时间、溶解氧浓度和泥龄等重要因素对处理效果的影响。
3.
Results showed that, in the low flow period, the process control target that the value of NH3-N in the effluent of the fluid tank is no more than 1 mg·L-1could be achieved by prolonging hydraulic retention time(HRT)and increasing the air/water ratio.
试验结果表明,在枯水期间珠江原水氨氮(NH3-N)等污染物严重超标情况下,可以通过延长水力停留时间、提高气水比等措施来保证流化池工艺出水达到出水NH3-N≤1。
4)  hydraulic retention time(HRT)
水力停留时间(HRT)
5)  hydraulic residence time
水力停留时间
1.
It is concluded that water temperature, water level, flow field, and hydraulic residence time (HRT) have great influences upon the self-purification capacity of Chenhang Reservoir.
研究表明,陈行水库的水温、水位、流场、水力停留时间对水库自净作用有很大影响;在水温正常变化范围内,水温越高,水力停留时间越长,陈行水库自净能力就越强,并提出陈行水库运行管理建议。
2.
In the wastewater infiltration land treating systems, the relation between hydraulic residence time and effects of effluent is directly associated with the relation between system scale and effects of effluent.
污水渗滤土地处理系统中 ,水力停留时间与出水效果之间的关系 ,直接涉及到系统的大小与出水效果之间的关系 。
3.
11 h) is much smaller than nominal detention time(32 h),and the actual flow pattern is between the plug flow and continuous stirred flow based on the characteristic value of hydraulic residence time distribution.
以湖北漳河灌区的水塘湿地为研究对象,用罗丹明作示踪剂,通过示踪试验来测定湿地水力停留时间分布、了解水力停留时间的性质,并分析影响水力停留时间的因素,为灌区水塘湿地的改造和净化能力的提高提出合理的建议。
6)  total hydraulic retention time(THRT)
总水力停留时间
补充资料:短停留时间裂解
分子式:
CAS号:

性质:指石油烃在高温和停留时间低于0.6s条件下完成裂解的反应过程。停留时间低于0.1s完成裂解反应的,称为超短停留时间裂解。在管式炉裂解制乙烯中,初期的裂解炉辐射段盘管为水平结构,材料耐高温只允许在1000℃以下,烃类裂解只能在较低温度(760~780℃),较长停留时间(0.8~1.2s),中、低等裂解深度下进行,乙烯收率只有18%~20%。裂解炉辐射段盘管改为垂直结构,管金属材料耐高温性能提高到1050~1115℃后,烃类可在高温(800~920℃),短停留时间(0.6~0.03s),高深度下裂解,乙烯收率提高到25%~32%。目前,管式裂解炉的停留时间一般为0.15~0.3s,毫秒炉低于0.1s。非管式炉裂解的停留时间可达0.02s以下。

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