Application of membranes technologies
This webpage is devoted namely to application of baromembrane (hereafter referred to as BM) technologies/processes for processing both liquid and vapour media.
There is no trying to give a general evaluation of BM technology application in different branches of industry; we talk ONLY about our positive experience in applying BM technologies/processes. Our major experience refers to using ceramic and polymeric membranes.
If to speak in general, BM technologies/processes allow separating the inlet/feed stream at the required level of selectivity into the following:
- Permeate (penetrate, filtrate) refers to the stream or the volume of liquid, which passes through the membrane during BM process. Permeate consists of solution of one or few components with the smallest linear size.
- Concentrate (retentate) refers to the stream or the volume of liquid which does not pass through the membrane during the BM process.
Depending on the main technology, not only permeate, but also concentrate can be considered a useful product. Even in our experience, it is not infrequent that both permeate and concentrate are used in the technological cycles.
In our practice we use BM processes to solve the following two main problems, which occur during the inlet/feed stream treatment:
- Concentration of the required component and/or components;
- Removal of undesirable components from the inlet/feed stream.
Application Fields of Baromembrane Membranes
Water Treatment
- treatment of muddy surface water;
- oil residue treatment;
- waste water treatmet in iron industry;
- treatment of oil-contaminated water from printing plant;
- treatment of oil-contaminated waste water in automobile industry;
- treatment of emulsion oil and decreasing liquid in machine industry;
- treatment of liquids containing alkali or acid;
- removal of alkali and acid from liquid flow.
Food Industry
- milk industry:
- bacteria removal;
- casein separation;
- milk whey skimming;
- milk concentration;
- milk whey concentration. - alcohol industry: filtration of working liquids in the process of alcoholic bevereges production;
- beverage production: purification and clarification of fruit and vegetable juices: apple, berry, pineapple juice, etc.
Liquid samples after treatment by ceramic membranes:
Chemical industry
- separation and concentration of catalysts;
- concentration of polymer suspension and dissolution of metal hydroxide;
- product demineralization;
- purification and processing of organic solvents.
Liquid samples after treatment by ceramic membranes:
Immune Technology and Pharmaceutics
- treatment of solution for antibiotic production: erythromycin, cephalothin, guanosine, carnine and streptomycin;
- treatment of solution of enzymes of lactic and citric acid;
- production of amino acids: lysine, glutanic acid, aspartame, glycine;
- treatment of organic acid, polyol, polyacid;
- treatment of vitamin solutions: C, B12, B2;
- filtration of enzyme solution;
- treatment of natural plant extracts.
Liquid samples after treatment by ceramic membranes:
