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Delemil has the experience of developing special concentrated separation membranes, and its membrane components play an important role in the separation process in food and beverage, bio-fermentation, bio-pharmaceutical, hydrometallurgical and other industries. Our membrane products are unique in design and excellent in performance. We can customize according to the customer's product process chain. We are committed to helping companies save investment, reduce operating costs, reduce consumption, realize rational use of resources, and obtain maximum value at the lowest costs, so as to help the company's product upgrades.


Selection table of separation fields

Membrane types Main characteristics Application conditions Applicable products
Selection table of NF membrane elements It enables that the monovalent salt permeates while intercepting divalent salt, and also intercepting the molecular weight of about 150-300 Dalton neutral molecules Acid electroplating wastewater recovery
Dye removal or concentration
Heavy metals removal
Sodium sulfate concentration
BOD/COD removal, landfill leachate treatment
Glucose purification, polysaccharide salt rejection, sugar concentration and classification
Concentration of plant peptide, animal peptide
Regular RS-S series
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It has high selectivity and high permeability of monovalent ions, as well as higher interception rate of divalent ions and COD, which contributes to obtaining high purity salt solutions while reducing concentrated wastewater Acid electroplating wastewater recovery
Heavy metals removal
Sodium sulfate concentration
BOD/COD removal
Whey protein desalination
Glucose purification, polysaccharide salt rejection, sugar concentration and classification
Concentration of plant peptide, animal peptide
Separation of organic phosphorus and sodium chloride
Selective separation membrane CX-S series
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It can realize the purification of acid solution, removal of metal cations, recovery of acid and soluble chemical substances in the leaching liquid, decoloration of inorganic acid and etc Purified acid solution, metal cations removal
Acid recovery in leaching solution
Inorganic acid decolorization
Soluble chemical substances recovery
Bivalent ions concentration and recovery in acid solution
Regular application that is cleaned by strong corrosive acid
Acid resistance AR-S series
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It can realize the purification of caustic soda and concentration of other compounds from organic pollutants, and alkali liquid purification, while reduce operating cost effectively Alkali liquid recovery
Metals recovery in alkali liquid
Electrolyte recovery
Reducing COD content before neutralizing industrial wastewater
Recovery of alkali liquid for cleaning vessels and equipment
Regular application that is cleaned by strong corrosive alkali
Base resistance BR-S series
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It is suitable for working under the condition of organic solvent and water coexistence. It can be operated under normal temperature or low temperature without affecting the activity of active substances Paint coating: Purify the waste liquid for cleaning the production line and recover valuable solvents and coatings
Medicine: Purifying concentrated drugs and intermediate products from solvent media (eg. 6-APA)
Recovery of anti-biotic and peptide
Recovery of soluble chemical substances
Solvent purification
Polymer adhesive recovery and pigment separation
Recover catalysts of solution
Recover hydrocarbons during the cleaning process
Organic solvent resistance SR-S series
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It is suitable for the condition of pure organic solvent, solvent purity can be over 95% Medicine: Purifying concentrated drugs and intermediate products from solvent media (eg. 6-APA)
Recovery of anti-biotic and peptide
Solvent purification
Recover catalysts of solution
Recover hydrocarbons during the cleaning process
Applied to removing tar from FCC raw materials, purification and dewaxing of gas condensate
Alcohol recovery and extractive concentration, natural compound concentration, natural oil dewasxing and concentration etc
Pure organic solvent resistance HSR-S series
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It is designed for systems that use thermal disinfection instead of chemical disinfection. Thermal disinfection can bear up to 90℃ (194℉), which is suitable for the water purification separation system of low cross-flow environment, no suspended solids, working temperature up to 50℃ (122℉) Sanitary membrane modules, applied to the customers of pharmacy, food and cosmetics etc High temperature resistance TRNF-S series
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It is designed for the water quality with high TDS and COD, also used for the salt concentration with high salt contents Waste concentrated water recovery in the sugar decolorization
Sulfate removal in the chlor-alkali Industry
Separation of mono-saccharide and di-saccharide
Sugars fractionation
Polypeptide and protein concentration in the cooking liquids such as sea cucumber
Whey protein desalination
Juice concentration
Antibiotic concentration
High pressure resistance PRNF-S series
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