33 results about "Osmotic concentration" patented technology

Provided are thin film composite membrane structures comprising: a selective membrane layer for ion rejection attached to a support layer, the support layer comprising a multi-zone microfiltration membrane comprising: a porous support material; and at least two microfiltration zones, where a first zone comprises a first membrane and a second zone that is attached to the first zone and that coats at least a portion of the porous support material. Thin film composite membrane structures may be provided in reverse osmosis systems or nanofiltration systems. Also, thin film composite membrane structures may be provided in direct osmotic concentration systems, forward osmosis systems, or pressure retarded osmosis systems.

The invention relates to an adsorption herapeutic apparatus for maternal-fetal blood group incompatibility, relating to the medical field. The apparatus is characterized by comprising following steps: utilizing PB of 25 and 35 mmol/L as lysate, fully washing Rh positive O-type erythrocytes and cleaning them with normal saline to make ghost cells with dialysis of ferrohemoglobin and antigen performance capable of effectively absorbing Rh antibodies, utilizing 0.9%, 1.0%, 1.1%, 1.2% and 1.3% of agarose which is melt at 100 DEG C and kept in 56 DEG C to make adsorbents of 95% of ghost cell concentration, orderly taking 55-65ml according to ghost cell concentration from high to low to be added into a cylindrical container made by material with high biocompatibility so that an absorber enabling adsorbents from a sample inlet end to a sample outlet end to form uniform distribution of ghost cells and agarose concentration from low to high, using the above to clear Rh anti-bodies in plasmas filtered by the absorber and macromolecule disease-causing substances generated by destroyed erythrocyte such that the treatment purpose of preventing Rh anti-bodies of pregnant women from entering fetus blood and lightening condition is achieved.

The invention relates to a method and apparatus for treatment of produced or process water from hydrocarbon production to reduce the volume of the produced or process water while simultaneously reducing the salinity of a highly saline stream, for example, the brine from a seawater desalination plant. The method includes causing a feed stream comprising produced or process water to flow through the lumen of a hollow fiber osmotic membrane 4 which is immersed in an open channel 2 or tank of flowing draw solution 6 which has high salinity. In this way, water from the feed stream is drawn through the osmotic membrane 4 by an osmotic pressure differential caused by the difference in salinity between the feed stream and the draw solution 6.

The invention relates to a buried type agricultural irrigation system capable of adjusting osmotic concentration. The irrigation system comprises a main pipeline, a secondary pipeline, a drainage portand a regulating valve, wherein the drainage port is formed in the secondary pipeline, the regulating valve is arranged on the joint between the drainage port and the secondary pipeline, a first semi-permeable membrane is arranged on the joint between the main pipeline and the secondary pipeline, a second semi-permeable membrane is arranged on the joint between the secondary pipeline and the drainage port, the regulating valve is connected with a regulating water tank, the regulating water tank regulates the concentration of an aqueous solution in the secondary pipeline, the first semi-permeable membrane is used for taking water from the main pipeline, the second semi-permeable membrane is used for irrigating the outside through the drainage port, the irrigation system further comprises amonitoring system, the monitoring system further comprises a flow instrument, a first flow velocity meter, a second flow velocity meter, a third flow velocity meter and a control meter, the first flow velocity meter, the second flow velocity meter and the third flow velocity meter measure the water velocities on the first semi-permeable membrane, second semi-permeable membrane and regulating valve respectively, the flow instrument detects the amount of water discharged from the drainage port, and the control meter controls the regulating valve to adjust the irrigation speed and irrigation amount of the irrigation system.

The invention discloses a novel high-salt mercury-containing wastewater concentration method. A forward osmosis concentration technology and an evaporation concentration technology are effectively combined; mercury-containing wastewater is subjected to evaporative crystallization treatment; wherein the forward osmosis concentration technology and the membrane separation technology utilize physicalcharacteristics driven by osmotic pressure; pure physical separation and osmotic concentration processes are adopted, phase change is avoided, the energy consumption is low, the process is simple, dechlorinated light salt brine is used as a draw solution, the draw solution is diluted and then re-injected into a salt well, waste water needing to be treated outside cannot be generated, resources ofthe chlor-alkali industry are fully utilized, zero emission is achieved, the process efficiency is improved, energy consumption is reduced, and the operation cost is reduced.

The invention provides an ambrisentan aerosol inhalation solution as well as a preparation method and application thereof. A single dose of the ambrisentan inhalation solution comprises 0.1-20mg of ambrisentan, a buffering agent, an isoosmotic adjusting agent and a solvent, and can also comprise a pH (Potential of Hydrogen) adjusting agent. The single dose specification of the inhaled solution is 1-5 ml. The dosage of the buffering agent is 0.01%-0.5%; the isoosmotic adjusting agent is added to enable the inhalation solution to have the molecular osmotic concentration by weight of 200-400 mOsmol/kg; the addition amount of the pH regulator enables the pH value of the inhalation solution to be 6.5-10.0. The ambrisentan aerosol inhalation solution is combined with the liquid atomization device, and the ambrisentan aerosol inhalation solution drug dosage form and the drug delivery system which are convenient to use, safe, effective and good in stability can be provided.

The invention provides an inhalation umeclidinium bromide solution, a preparation method and application thereof, the inhalation solution comprises an active substance, a solvent and auxiliary materials, the single dose specification of the inhalation solution is 1-5ml, and the active substance in the single dose specification is 20-100 micrograms of umeclidinium bromide; the solvent is sterile injection water; the auxiliary materials comprise an isoosmotic adjusting agent and a pH adjusting agent; the adding amount of the isoosmotic adjusting agent is such that the inhalation solution has a weight gram molecule osmotic concentration of 240-400mOsmol/kg; the pH regulator is added so that the pH value of the inhalation solution preparation is 4.0-6.0. The device for combining the ullidinium bromide solution for inhalation with an atomized aerosol can provide a medicine dosage form of the ullidinium bromide for inhalation, which is convenient to use, safe, effective and good in stability, and an administration system.