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生化系统
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  biological system
    On the basis of influent assay and the systematic analysis of the existing acrylic fiber wastewater treatment facilities, the status of the influent, especially its biodegradability, was verified. Effects of temperature, dissolved oxygen, sludge concentration and hydraulic retention time on the biological system were studied.
    通过现场调查、试验分析,对目前含氰污水处理装置的生产工艺进行系统分析,摸清来水水质状况,特别是可生化性情况,分别考查水温、DO和污泥浓度、曝气停留时间对污水生化系统的影响,考查上游来水急剧变化对生化系统和出水水质的影响,综合分析各种因素对污水处理系统的影响情况。
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    , (90%)respectively and suggests the saturation constant (KS) of 587mg/l and the maximum specific substrate utilization rate (K) of4.35d~1.
    水解酸化后好氧生化系统的动力学最大比降解速度K=4.35/日,半速度常数K=587mg/l。
短句来源
    THE STUDY ON TIME LAGS AND NONLINEAR OSCILLATION IN BIOCHEMICAL SYSTEMS
    生化系统中时间延迟与非线性振荡研究
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    The main factors affecting chemical effluent treatment with activated sludge process is analyzed . The mechanism of COD , BOD 5 , alkalinity , dissolved oxygen , sludge concentrationand N-P nutrient in water inlet is discussed and reviewed . So the measures to control and to improve biochemical treatment is presented .
    分析了影响活性污泥法处理化工污水处理效果的主要因素,探讨了进水COD、BOD5、碱度、溶解氧、污泥浓度、N-P营养盐浓度的影响机理,提出合理控制生化系统关键指标、提高生化处理效果的措施。
短句来源
    It is difficult to treat wastewater produced from production of ABS resin because of poor quality and high viscosity of produced water.
    ABS树脂生产装置中的污水处理一直是影响化工装置环保的一大难题。 一方面,其废水水质差,悬浮物含量高,且多为细微颗粒,难以从水中分离,进入生化系统也难以去除;
短句来源
    Due to the complexity and high non-linearity of microbial fermentation process, most simple mathematical models cannot describe the behavior of biochemistry systems very well.
    由于微生物发酵过程的复杂性和高度非线性,更多的简单的数学模型不能很好地描述这类生化系统
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  biological system
Functional invariant approach to the biological system uniqueness: A simple neuronet model
      
Homeostasis and self-similarity of biological system dynamics
      
Synthesis and electrochemical applications of fluorinated vinylazole copolymers for monitoring NO in model and biological system
      
Numerical calculations of the displacement field in the medium are performed for the values of the parameters simulating a skin-fat layer-muscle-liver biological system.
      
We apply this model to Stark-shifted spectral holes burnt in a biological system, namely, myoglobin.
      
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The main factors affecting chemical effluent treatment with activated sludge process is analyzed .The mechanism of COD , BOD 5 , alkalinity , dissolved oxygen , sludge concentrationand N-P nutrient in water inlet is discussed and reviewed . So the measures to control and to improve biochemical treatment is presented .

分析了影响活性污泥法处理化工污水处理效果的主要因素,探讨了进水COD、BOD5、碱度、溶解氧、污泥浓度、N-P营养盐浓度的影响机理,提出合理控制生化系统关键指标、提高生化处理效果的措施。

The microbial degradation with hydrolytic acidification-aerobic process was invetigated to characterize thebiodegradability of the Iso-Propylalcohol wastewater with CODe. concentration 2000-3000 mg/l.The experimental resultsdemonstrated that the biodegradability(BOD,/COD.,) of Iso-Propylalcohol wastewater could be raised from 0.40 to 0.50 byhydrolytic acidification. The hydrolytic acidification--aerobic process results in good removal of BOD, (95%) and COD., (90%)respectively and suggests the saturation constant...

The microbial degradation with hydrolytic acidification-aerobic process was invetigated to characterize thebiodegradability of the Iso-Propylalcohol wastewater with CODe. concentration 2000-3000 mg/l.The experimental resultsdemonstrated that the biodegradability(BOD,/COD.,) of Iso-Propylalcohol wastewater could be raised from 0.40 to 0.50 byhydrolytic acidification. The hydrolytic acidification--aerobic process results in good removal of BOD, (95%) and COD., (90%)respectively and suggests the saturation constant (KS) of 587mg/l and the maximum specific substrate utilization rate (K) of4.35d~1.

感光材料工业排出的异丙醇废水的BOD5/COcr比值为0.40左右,可生化性良好;经水解酸化处理后该废水的BOD5/CODcr比值可提高至0.5左右,平均增加了25%,证实了水解酸化菌在该工艺条件下具有提高异丙醇废水可生化性的功能。水解酸化—好氧串联工艺对该废水总的处理效果表明:在异丙醇废水CODcr进水浓度2000~3000mg/l范围内,CODcr总去除率可达90%左右,BOD5总去除率可达95%左右。水解酸化后好氧生化系统的动力学最大比降解速度K=4.35/日,半速度常数K=587mg/l。

The effects of introducing a delay between the concentration of limiting nutrient and the special growth rate were investigated in a CSTR. The condition of stability and oscillation were also obtained by using a special model. The contradistinction was done to the effects of without a delay. It was confirmed by computer simulations.

生化系统中存在丰富的非线性振荡现象。本文对于CSTR 中的恒化培养,采用m onod 方程,在限制性底物与比生长速率之间引入时间延迟,进行了理论分析,得出了稳定性和周期解条件,并与未引入时间延迟前的情况进行了对比。最后还进行了数值模拟。

 
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