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    The surface electric charge of Al2O3 microfiltration membrane modified by TiO2 was characterized by measuring the zeta potential of TiO2 coating on constituent particles of the membrane through microelectrophoresis. The influence of membrane surface zeta potential on the water permeate flux of Al2O3 membrane was explored.
    采用显微电泳法通过测定Al2O3微滤膜颗粒表面TiO2涂层的zeta电位表征了TiO2涂层改性Al2O3微滤膜表面的荷电性,并探讨了微滤膜荷电性其对其水通量的影响。
    The isoelectric point is at pH=6.3 for unmodified Al2O3 membrane, but Al2O3 membrane modified by TiO2 coating is negative electric charged with pH value ranging from 2 to 12. The purified water permeate flux of Al2O3 microfiltration membrane modified by nano-sized TiO2 increases apparently, comparing to the unmodified.
    经TiO2改性Al2O3微滤膜的纯净水渗透通量较未改性时明显提高;
    4. Because of growth of potato root and movement of small animals in soil , speed of water permeated the soil in potato farmland is quickly than in hydrology land.
    4.马铃薯耕地的土壤入渗速率略大于水文地土壤入渗速率,其原因与马铃薯根系的下扎作用和土壤生物活动有关,在同一范围(如地表下10cm)内马铃薯地和水文地K_(fs)、φ_m、α、△θ、S变异不大。
    Lossening and moisture-maintaining agent, Saturaid, has a obvious effect on improved drainage soil such as soddy soil, adding Saturaid 1.5 g/L into soil, the speed of water permeating was obviously faster than control which didn't put Saturaid, the permeating time per 100 ml water was 3′17″ less than control, and the water contents in soil was 34.8 g more than control.
    松土保湿剂信德瑞在改良排水性土壤如草炭土方面效果明显,每升土中加入1.5g的信德瑞,水分渗透速度明显快于未加信德瑞的对照,每100ml水渗透时间比对照少3′17″,而且土壤含水量比对照多34.82g。
    The results show that the membrane obtained herewith has good desalination to MgSO_4 (90~0_0) and high water permeate flux (40 L·m~(-2)·h~(-1)).
    实验确认,中空纤维膜对MgSO4具有较高的脱盐率(>90%)和较高的透水通量(40L·m-2·h-1)
    The pure water permeate flux up to 351.43 kg/(m~2·h) was achieved in membrane distillation(MD) process when the concentration of iPP was 27.0 %, the nucleating agent concentration of adipic acid 0.5%, the thickness of iPP-bean solution 500 μm, the vacuum 63.98 kPa and the flow rate and temperature of cycling water were 30 L/h and 70 ℃ respectively.
    在聚丙烯质量分数为27.0%,以正己烷为萃取剂,铸膜液厚度为500μm,成核剂己二酸的质量分数为0.5%,循环水流量为30L/h,温度为70℃,膜后操作真空度为63.98kPa时,纯水的膜蒸馏通量可达351.43kg/(m2·h).
    Experimental results show that the optimum conditions should be:operation pressure-1.3 MPa,flow rate-28 L/min and pH value-7.After treatment by nanofiltration under the optimum conditions,COD in water permeated through amounts only to 12.17 mg/L,and no turbidity or SS is detected.
    在本实验条件下,纳滤膜法处理乳制品废水的最佳操作压力1.3 M Pa,进料流量28 L/m in,pH值为7.经纳滤膜处理后出水的COD为12.17 m g/L,浊度和SS均检测不到.
    Results The optimum technic of extracting Flos Lonicerae polysaccharide was as follows: water permeating time 2 h,temperature of water 90 ℃,extraction with chloroform once,concentration of alcohol 80%.
    结果金银花多糖的最佳提取工艺为水浸提2 h,浸提温度90℃,氯仿萃取1次,沉析用乙醇浓度为80%。
    Combustion Mechanism and Technological Essentials for Water Permeating Coal within Coalburnig Boiler
    层炉原煤渗水燃烧的机理及技术要点
    SOME IMPROVEMENTS ON CALCULATING PHREATIC WATER PERMEATING RECHARGE AND GROUND SURFACE EVAPORATING CAPACITY BY ZFP
    对零通量面法测算潜水入渗补给量和地表蒸发量的一点改进
    Effect of Online Backflushing by Water Permeating on Fouling of UF Membrane for Processing Rapeseed Protein Solution
    菜籽蛋白超滤液反冲对超滤膜污染的控制研究
    The Study on the Rule which the Surface Water Permeates on the Loess Plateau
    黄土塬区域城市地表水下渗问题研究
    Besides, the water permeated from roof will great affect the strength and stability of cavern. Therefore, keeping a layer of salt to the roof is a good way to prevent water permeation.
    同时渗透水对顶板岩层的强度及稳定性的影响很大,因此,在开采时应尽量避免水渗透到顶板岩层,应留一定厚度的岩盐层保护顶板。
    Under pressure of 0.1 Mpa, the flux was measured that no pure water permeated through the membrane. Conversely, the membrane presented ultrafiltration properties when the membrane was prepared from a heterogeneous casting solution of PVA by immersing them in Na2SO4/H2O as coagulant medium.
    对其进行纯水通量测试,在0.1Mpa压力下几乎没有水透过膜,只有在铸膜液产生分相时在无水硫酸钠溶液中浸渍成膜才能使膜呈现超滤性能。
    On the laboratory of rock permeability, the paper analyzes the infection of ground-water permeating flow.
    通过开展裂隙岩体全应力应变渗流试验,分析地下水渗流对陷落柱裂隙岩体破坏的影响。
    The reason is that when water permeates into landslides, it always weaken the stability of landslides.
    水的渗透会严重影响滑坡的稳定性。
    Because of this condition, applicability of water permeating method to evaluate impermeability of concrete is studied in this paper.
    正是基于这种现状,本课题着重研究了水渗透法评价混凝土渗透性的适用性。
    The waterproof coal pillar may be regarded as an underground structure under the action of the overburden load and unilateral hydraulic pressure, also is one kind of distortable porous mediums that contains large amount of fissure and pores, which makes the mine water permeate into certain depth of it.
    防水煤柱可视为上覆岩层载荷和一侧水压力作用下的地下结构物。
    and 2 It occurs under special hydrogeological environment and the action of compressive stress in a direction of NEE and slips owing to ist water permeating into two groups of shear surface.
    地震活动是在特殊水文地质环境下,由于北东东向压应力作用,两组剪切面在水的参与下发生滑动的结果。
    By study the relations between time and total measures of water permeating into soil, between time and permeability velocity, between permeability velocity and total water measures of permeation were established.
    结果作出了渗透时间与总渗透量、渗透时间与渗透速度及渗透速度与总渗透量间的关系曲线,其关系方程分别是Y=A+BlogX、Y=Ae~(B/X)。
 

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