Ultrafiltration Membrane Cleaning Equipment for Membrane Flux Recovery

Ultrafiltration membrane cleaning equipment is dedicated circulating cleaning machinery to eliminate organic contamination, inorganic scaling and microbial attachments on ultrafiltration membrane surfaces, recovering membrane flux and extending membrane service life. It can be matched with Hollow Fiber Ultrafiltration Membrane Equipment for regular offline and online cleaning, and work cooperatively with Filter Ultrafiltration Machine to realize periodic system maintenance of integrated filtration units. Adopting automatic chemical dosing and circulating flushing technology, this cleaning device avoids manual disassembly and cleaning, reduces membrane damage risks, and becomes essential supporting equipment for long-term stable operation of all kinds of membrane water treatment systems in industrial and municipal water projects worldwide.

Product Description

Ultrafiltration membrane cleaning equipment is a special supporting unit designed for membrane separation systems. During long-term operation, ultrafiltration membranes will gradually accumulate colloids, microorganisms, organic pollutants and inorganic precipitates, leading to continuous flux attenuation and increased operating pressure. Conventional manual cleaning brings low efficiency and may cause fiber breakage. This set of equipment provides standardized circulating chemical cleaning to remove pollutants evenly. The complete system consists of cleaning tank, circulating pump, chemical dosing assembly, temperature monitoring sensor, flow control valve and automatic PLC control cabinet.

Water treatment system operators can deploy independent cleaning skids to serve multiple sets of membrane equipment. For large-scale water plants equipped with Hollow Fiber Ultrafiltration Membrane Equipment, centralized cleaning equipment can be configured to realize switching cleaning for different membrane racks. Small and medium-sized enterprises with integrated filtration systems can directly connect the cleaning unit to Filter Ultrafiltration Machine, completing online cyclic cleaning without disassembling membrane modules. This ultrafiltration membrane cleaning equipment supports acid cleaning, alkaline cleaning and disinfection cleaning processes. It is widely matched with water purification ultrafiltration systems, wastewater reuse ultrafiltration lines and desalination pretreatment membrane equipment, effectively lowering membrane replacement costs and improving the continuous operation rate of water treatment production lines.

Working Principle

Ultrafiltration membrane cleaning equipment relies on cyclic chemical soaking and cross-flow circulation to remove membrane surface contaminants. According to the pollution type of ultrafiltration membranes, operators prepare acid cleaning solution, alkaline cleaning solution or biocide solution inside the cleaning tank. The cleaning pump transports the mixed liquid into the ultrafiltration membrane module to form continuous circulating flow.

Cleaning agents chemically decompose organic dirt, dissolve inorganic scaling and inhibit microbial reproduction. Continuous cross-flow circulation generates scouring force to strip pollutant attachments from membrane surfaces. After sufficient circulation and soaking, the waste liquid is discharged, and the membrane system is rinsed with clean water to finish the whole cleaning process. Regular cleaning can effectively restore membrane flux and prevent irreversible membrane fouling. For large membrane projects, the cleaning equipment can be connected to multiple sets of Hollow Fiber Ultrafiltration Membrane Equipment through switching valves to realize shared cleaning. For small integrated filtration units, direct connection with Filter Ultrafiltration Machine realizes automatic timing cleaning, reducing frequent manual inspection and maintenance work.

Technical Features

• 1. Multiple cleaning process modes:

• Support acid washing, alkaline washing and sterilization cleaning, adjustable according to actual membrane pollution characteristics.

• 2. Automatic constant temperature circulation system:

• Built-in temperature sensor keeps cleaning liquid within safe temperature range to prevent membrane material damage.

• 3. Accurate chemical dosing control:

• Equipped with metering dosing device to stabilize agent concentration and avoid excessive chemical corrosion on membrane elements.

• 4. Flexible pipeline switching design:

• Can serve multiple membrane modules in turn, compatible with Hollow Fiber Ultrafiltration Membrane Equipment of different specifications.

• 5. Standardized interface adaptation:

• Convenient docking with the pipeline of Filter Ultrafiltration Machine, realizing seamless online cleaning without membrane disassembly.

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• Product Advantages

• 1. Efficient flux recovery:

• Uniform cyclic cleaning achieves better cleaning effect than manual flushing, obviously recovering membrane permeability.

• 2. Reduce membrane damage risk:

• Online cleaning avoids frequent disassembly and handling, effectively lowering the probability of hollow fiber fracture.

• 3. Lower overall operating cost:

• Extend ultrafiltration membrane service life, reduce membrane replacement frequency and cut long-term investment.

• 4. Automatic unattended operation:

• Set cleaning duration, circulation flow and dosing parameters in advance, the system automatically completes all cleaning procedures.

• 5. Wide compatibility:

• Suitable for PVDF, PAN, PES various material ultrafiltration membranes, adaptable to water purification, wastewater and desalination pretreatment systems.

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• Application Fields

• Municipal reclaimed water treatment plants supporting large-scale Hollow Fiber Ultrafiltration Membrane Equipment.

• Industrial wastewater recycling ultrafiltration systems with heavy organic and microbial pollution.

• Food, pharmaceutical factory raw water purification ultrafiltration production lines.

• Seawater and brackish water desalination pretreatment ultrafiltration facilities.

• Small and medium enterprise integrated water purification stations equipped with Filter Ultrafiltration Machine.

• Membrane engineering companies that need portable cleaning equipment for on-site membrane maintenance.

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• FAQ

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