Aquaflex 40
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X-FLOW AQUAFLEX 40 ULTRAFILTRATION MEMBRANE MEMBRANE ELEMENT DATASHEET AQUAFLEX HP ARTICLE CODE : 2871FL395NH GENERAL INFORMATION CLEANING CHEMICAL RESISTANCE Aquaflex 40 is an ultrafiltration module, used for production of process and potable water. Typical applications are the filtration of surface water, potable water and WWTP effluent. Mode of operation is feed-and-bleed with a minor crossflow or dead-end mode with regular backwash (permeate only) and chemically enhanced backwash. Sodium Hypochlorite - Typical 200 ppm, at ≤ 40 ºC at ≥ pH 10 - Maximum 500 ppm - 250.000 ppm hours cumulative; ≥ pH 10 GENERAL SOLVENT RESISTANCE Since the resistance of the membrane to solvents strongly depends on the actual process conditions, the indications given below should only be considered as guideline. Acids Bases Organic esters, ketones, ethers Aliphatic alcohols Aliphatic hydrocarbons Halogenated hydrocarbons Aromatic hydrocarbons Polar organic solvents Oils MEMBRANE CHARACTERISTICS • Hydrophilic membrane composed of a blend of polyvinylpyrrolidone and polyethersulfone • A nominal pore size of 20 nm • Structure asymmetric/microporous • High performance and a very good antifouling behaviour • Typical permeate quality SDI<3, turbidity <0,1 NTU • Membrane filtration provides 99.9999% (LOG6) reduction of bacteria (Pseudomonas diminuta) and 99.99% (LOG 4) reduction of virus (MS2 colifages) by mechanical means. EPA Est. No. 090374-NLD-001 ADVANCED FILTRATION Chlorine Dioxide - Typical 1 ppm, at ≤ 40 ºC - Maximum 2 ppm - 90.000 ppm hours cumulative; pH 11 Hydrogen Peroxide - Typical 200 ppm, at ≤ 40 ºC - Maximum 500 ppm - 350.000 ppm hours cumulative Note: The above figures for oxidant contact represent the membrane resistance to each individual oxidizing agent. The total combined exposure for Sodium Hypochlorite and Chlorine Dioxide will be calculated as follows: Combined exposure (NaOCl + ClO2) = 2.6 x Exposure to ClO2 (in ppm hours)+ Exposure to NaOCl (in ppm hours) < 250.000 ppm hours As a good working practice and in order to maximise the lifetime of the membrane it is advised to reduce the membrane exposure to oxidising agents to a minimum. Exposure limits are also affected by temperature, pH and the presence of metals. In order not to exceed maximum exposure limits, membranes must be preserved free of any oxidising agent when the plant is stopped. Acids Hydrochloric Acid Nitric Acid Sulphuric Acid Phosphoric Acid Acetic Acid Citric Acid pH > 2 during filtration pH > 1 during cleaning Bases Sodium Hydroxide (<4%) ++ Potassium Hydroxide (<4%) + + pH < 12 during filtration pH < 13 during cleaning ELEMENT SPECIFICATIONS Membrane Diameter [mm/mil] Membrane area [m²/ft²] Feed connection D0 [mm/Inch] Element outer diameter D1 [mm/Inch] Module length L0 [mm/Inch] Permeate connection D2 [mm/Inch]

X-FLOW AQUAFLEX 40 ULTRAFILTRATION MEMBRANE MEMBRANE ELEMENT DATASHEET OPERATING SPECIFICATIONS Max. system pressure Temp. range TECHNICAL SPECIFICATIONS Weight Specifications Dry weight of membrane element ca. 27 kg [59 lbs] Membrane element filled with water ca. 57 kg [125 lbs] Materials of Construction Housing PVC white Flow distributor PVC Potting PU resin Membrane PES/PVP • Backwash water should be free of particulates and should be of UF permeate quality or better • Backwash pumps should preferably be made of non-corroding materials, e.g., plastic or stainless steel. If compressed air...