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- sludge concentration gradient 污泥浓度梯度
- Substrates may accumulate intracellularly against a concentration gradient. 底物可以逆浓度梯度而积聚于细胞内。
- Only diffusion under a concentration gradient is considered in this chapter. 本章仅讨论由浓度梯度引起的质量扩散。
- The movement of a solute down its concentration gradient is called diffusion. 溶质沿着浓度梯度溶解的运动过程被称作分子扩散运动。
- Su trates may accumulate intracellularly agai t a concentration gradient. 底物可以逆浓度梯度而积聚于细胞内。
- The experiment educe that the optimal working point of WWTP is 3 pumps and activated sludge concentration is 1600mg/L. 试验确定武汉市水质净化厂的最佳工况点为进水水泵是3台，活性污泥浓度是1600mg/L。
- Aerotaxis (aerotactic movement) A TAXIS in response to an oxygen concentration gradient. 趋氧性:一种对氧浓度梯度产生回应的排序。
- The sludge cake layer was reversibly removed through extended aeration without effluent, reduced sludge concentration or prolonged cease time of membrane filtration. 通过停止进出水维持空曝气、降低反应器内污泥浓度或延长膜的停抽时间可以使沉积在膜表面的悬浮污泥脱离膜表面，从而使膜过滤能力得到很好的恢复。
- Chemotaxis (chemotactic movement) A TXIS in response to a chemical concentration gradient. 趋化现象：一种对化学浓度梯度的趋化反应。
- The reaction rate is limited by the concentration gradient of oxygen in the sample. 反应速率受试样中氧浓度梯度的限制。
- It was also observed that the increase in sludge concentration resulted in the reduction of CFV along membrane surfaces which would influence the operation of the submerged MBR. 同时污泥浓度的上升会导致膜面错流速度的降低，不利于控制膜污染。
- The correlations between sludge concentration and cross flow velocity (CFV) and oxygen transfer coefficient in a submerged membrane bioreactor (MBR) were studied in this paper. 研究了浸没式膜-生物反应器中污泥浓度与膜面错流速度以及传氧速率之间的关系。
- To transport(ions or molecules)against a concentration gradient by the expenditure of chemically stored energy. 输送通过消耗以化学形式储存的能量把（离子或分子）输送到一个集中倾斜度
- The sludge concentration is high, shockproof ability is strong, so it can be applied in the treatment of industrial organic sewage with every kind of feed-water qualities. 污泥浓度高、耐冲击能力强，能适合各种进水水质的工业有机废水处理。
- To transport(ions or molecules) against a concentration gradient by the expenditure of chemically stored energy. 输送通过消耗以化学形式储存的能量把（离子或分子）输送到一个集中倾斜度
- Tests show that the equivalent sludge concentration and the quantity of nitrobacteria in the aerobic tank were increased when some suspended biomass supports were added in it. 试验表明应用浮动填料可大幅度提高曝气池中的活性污泥浓度并增加硝化菌的固着量，因而使该系统对COD、氨氮和总氮的去除能力均优于普通活性污泥系统。
- When the weak acid is given orally, the concentration gradient for un-ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa. 当这种弱酸性药物经口服给药时，胃与血浆之间的非解离型药物浓度梯度很大，从而有利于透过胃粘膜扩散。
- Decreased blood flow( eg, in shock) may lower the concentration gradient across the intestinal mucosa and decrease absorption by passive diffusion. 血流量的减少（休克病人）以降低跨肠粘膜的浓度梯度，从而减少被动扩散吸收。
- This paper reviews the design method of membrane bioreactor, including determining hydraulic retention time and sludge retention time, choosing sludge concentration and analyzing the process economy. 摘要综合论述了膜生物反应器的设计方法，包括确定最佳水力停留时间、污泥停留时间、污泥浓度，经济性分析。
- The results show surface enrich ment of PVC component and existence of concentration gradient over the top 5nm Jo the blend samples. 结果表明,在共混物样品表层5nm的深度范围里富集了PVC组分,并存在着深度浓度梯度。
