摘要:
This invention provides a hollow fiber membrane module which can reduce pressure loss in discharging water within a module and can reduce operating power. A hollow fiber membrane bundle is disposed within a cylindrical case having in its side face an opening part for the inflow/outflow of water, and the end of the hollow fiber membrane bundle is bonded at an axially outer position with respect to the opening for the inflow/outflow of water. A distribution holes is provided axially inward of the opening for the inflow/outflow of water and so as to surround the outer periphery of the hollow fiber membrane bundle, and grooves and/or corrugated protrusions are provided on the inner face of the distribution cylinder so as to be in communication with each other among the distribution holes.
摘要:
This invention provides a hollow fiber membrane module which can reduce pressure loss in discharging water within a module and can reduce operating power. A hollow fiber membrane bundle comprising a plurality of numbers of hollow fiber membranes are disposed within a cylindrical case having in its side face an opening part for the inflow/outflow of water, and the end of the hollow fiber membrane bundle is fixed by bonding at a position which is located in the axial direction of the cylindrical case at an outer position than the position of the opening part for the inflow/outflow of water on the side face of the cylindrical case. The hollow fiber membrane module is characterized in that a distribution cylinder provided with distribution holes is provided inward with respect to the opening part for the inflow/outflow of water on the side face of the cylindrical case and so as to surround the outer periphery of the hollow fiber membrane bundle, and grooves and/or corrugated protrusions are provided on the inner face of the distribution cylinder so as to be in communication with each other among the distribution holes.
摘要:
A hollow fiber membrane module comprising a large number of hollow fiber membranes contained in a cylindrical case, wherein one end of each hollow fiber membrane, which is left open, is fixed to the cylindrical case, while the other ends of the hollow fiber membranes are divided into more than one small bundles, with the ends, contained in separate small bundles, being kept together and plugged.
摘要:
Disclosed is a fresh water generator for fresh water production, which is effective to prevent a membrane life from becoming worse by suppressing the load on the membrane of a second semi-permeable membrane treatment facility when the concentrated water produced by the treatment of a first semi-permeable membrane treatment facility, and water to be treated with different osmotic pressure there from are mixed and treated with the second semi-permeable membrane treatment facility by the fresh water generator which comprises a means for storing the concentrated water produced from the first semi-permeable membrane treatment facility and water (B) to be treated, which is separately supplied in a storage tank A and a storage tank B in such a manner that the flow rate (mixture ratio) of the concentrated water to the water (B) to be treated is maintained constant, and supplying the concentrated water and the water (B) to be treated from each of the storage tanks to the second semi-permeable membrane treatment facility at a predetermined flow rate in at least a treatment process for treating water (A) to be treated with the first semi-permeable membrane treatment facility so as to obtain fresh water.
摘要:
A flexible display device comprises a device substrate and a flexible circuit substrate, and achieves high reliability of electrical connection. The device substrate includes a flexible substrate, a display unit and a first terminal part. The flexible circuit substrate includes a second terminal part. An ACF including conductive particles connects the first and second terminal parts. Each conductive particle consists of a core part covered by a metal layer. An electrode layer and a cushioning layer are provided between the flexible substrate and the first terminal part. A quotient of a sum of a product of average particle diameter and elastic modulus for the core part, and a product of double average thickness and elastic modulus for the metal layer, divided by a sum of products of average thickness and elastic modulus for the first terminal part, the cushioning layer and the electrode layer, is no greater than 1.5.
摘要:
A method produces a chemical through continuous fermentation including: (a) culturing a cell in a culture medium in a fermentor to ferment a feedstock to produce a chemical; (b) conducting filtration of the culture medium with a separation membrane module; (c) separating a permeate containing the chemical from the culture medium while retaining a non-permeated liquid in the fermentor, and (d) supplying a gas from at least one of a lower portion of the separation membrane module and a pipe communicating between the fermentor and the separation membrane module to adjust a gas linear velocity in the separation membrane module to 0.15 cm/s to 70 cm/s while supplying the separation membrane module with a liquid.
摘要:
A hollow fiber membrane module includes a housing, a hollow fiber membrane sealed in the housing and a sealing agent in a space between the hollow fiber membrane and the housing, wherein 1) the hollow fiber membrane is made of a polysulfone based resin; 2) a membrane surface average pore diameter is 5 nm or more and 500 nm or less; 3) a pure water permeability coefficient under 50 kPa at 25° C. is 0.05 m3/m2/hour or more and 5 m3/m2/hour or less; 4) the sealing agent is at least one selected from the group consisting of a polyurethane resin and an epoxy resin; and 5) a decrease in tensile strength after bringing the sealing agent into contact with saturated steam at 121° C. for 24 hours is 25% or less.
摘要翻译:中空纤维膜组件包括壳体,密封在壳体中的中空纤维膜和在中空纤维膜和壳体之间的空间中的密封剂,其中1)中空纤维膜由聚砜基树脂制成; 2)膜表面平均孔径为5nm以上且500nm以下; 3)在25℃下50kPa下的纯水渗透系数为0.05m 3 / m 2 /小时以上,5m 3 / m 2 /小时以下; 4)密封剂是选自聚氨酯树脂和环氧树脂中的至少一种; 和5)使密封剂在121℃与饱和蒸汽接触24小时后的拉伸强度降低为25%以下。
摘要:
The invention provides a method for evaluating a corneal disorder quantitatively and is applicable to living eyes. In particular, the invention provides a method for measuring a corneal transepithelial electric resistance, which method comprises: (1) a step of placing a first electrode on the cornea and a second electrode on the conjunctiva; and (2) a step of flowing an electric current between the first electrode and the second electrode to measure the electric resistance. The invention also provides a device for measuring a corneal transepithelial electric resistance value.
摘要:
In an electronic component mounting apparatus that is used in an electronic component mounting line for producing a mounted substrate by mounting electronic components on a substrate and that subjects the substrate to predetermined operation, a working unit attachment section 30 is provided within a range of movement of a working head, such as a loading head and a paste coating head, wherein a nozzle stocker 9 and a paste trial coating unit 10 can be removably attached as a working unit for performing specific additional operation appropriate for working function of the working head. The nozzle stoker 9 and the paste trial coating unit 10 are attached to the working unit attachment section 30 according to the type of working head.
摘要:
A seamless steel tube contains 0.15% to 0.50% C, 0.1% to 1.0% Si, 0.3% to 1.0% Mn, 0.015% or less P, 0.005% or less S, 0.01% to 0.1% Al, 0.01% or less N, 0.1% to 1.7% Cr, 0.4% to 1.1% Mo, 0.01% to 0.12% V, 0.01% to 0.08% Nb, and 0.0005% to 0.003% B or further contains 0.03% to 1.0% Cu on a mass basis and has a microstructure which has a composition containing 0.40% or more solute Mo and a tempered martensite phase that is a main phase and which contains prior-austenite grains with a grain size number of 8.5 or more and 0.06% by mass or more of a dispersed M2C-type precipitate with substantially a particulate shape.