Abstract:
Filtration processes and systems are provided for the separation of a filterable fluid stream by a filtration membrane module with uniform transmembrane pressure and flux along the membrane and internal control of membrane fouling via intermittent periodic reduction of the pressure differential between the permeate and retentate sides of the membrane and/or backwashing cycles during separation, recovery, and/or purification of proteins, peptides, nucleic acids, biologically produced polymers and other compounds or materials from aqueous fluids.
Abstract:
The present invention is directed to an improved microfiltration process, an improved ultrafiltration process, and an improved combination microfiltration process/ultrafiltration process, all for recovering target molecules from a polydisperse liquid. These processes are particularly useful in recovering proteins from transgenic milk.
Abstract:
The present invention is directed to a method for purifying microparticles. These microparticles are prepared in a liquid medium and are recovered free from impurities and undesirable reaction products in a particular way. In addition, an apparatus has been claimed to carry out the method of the invention. Since the microparticles are essentially intended to carry drugs or other biologically active compounds, the entire process can be carried out aseptically.
Abstract:
Described herein is a multi-stage process for the purification of leachate from dumps, comprising:
a) one ultrafiltration stage; b) one or more reverse osmosis stages, preferably two, characterized in that at least one reverse osmosis stage, preferably the first, is carried out by producing a rise in pressure in the circuit of the liquid circulating under pressure in a single osmosis unit, and further characterized in that the ultrafiltration stage is carried out at a temperature of at least +30°C, preferably at a temperature of between +30°C and +50°C.
Abstract translation:在描述了一种用于从转储渗滤液的纯化的多阶段过程,其包括:a)一种超滤阶段; b)一种或多种反渗透阶段,优选两个,其特征在于在没有至少一个反渗透阶段,优选地,首先,通过产生的压力上升在液体在单个渗透单元在压力下循环的电路进行的, 和在DASS模具超滤阶段的特征还在于在至少+ 30℃的温度下进行,优选在温度为30和50 C. 之间°C°
Abstract:
A desalination apparatus includes a first reverse osmosis membrane device 13 that removes a salt content from raw water supplied with predetermined pressure, a second reverse osmosis membrane device 15 that removes a salt content in first permeated water 12 from the first reverse osmosis membrane device 13, a first flow regulation valve 17 that regulates flow rate of first concentrated water 16 from the first reverse osmosis membrane device 13, a second flow regulation valve 19 that regulate flow rate of second concentrated water 18 from the second reverse osmosis membrane device 15, and a control device that measures a supply temperature of the raw water 11 by a thermometer 20, controls the first flow regulation valve 17 to maintain discharge amount of concentrated water constant, and controls the second flow regulation valve 19 to reduce a return amount of water so as to perform operation such that supply flow rate for the first reverse osmosis membrane device 13 is controlled to be lower than flow rate in summer in which a temperature is high, and predetermined product water recovery ratio is maintained to a predetermined amount.
Abstract:
A dehydrating apparatus, a dehydration system, and a dehydration method have improved membrane performance. The dehydrating apparatus 1 includes, in a dehydrating apparatus body, a water separation membrane module 10 in which a water separation membrane having at least one flow path extending in the up and down direction to cause a liquid to pass through is provided with a liquid inlet at the bottom thereof and a liquid outlet at the top thereof; and a shell 11 defined by the outer surface of the water separation membrane module and the inner wall of the dehydrating apparatus body. A heater 12 is provided in the shell near the liquid outlet, and a connection port 14 for connection with a pressure reducing device 13 is provided in the shell near the liquid inlet. As the liquid rises in the water separation membrane, water in the liquid permeates the water separation membrane and moves into the shell, by which the liquid is dehydrated.