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Dupont ultrafiltration membrane

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Dupont agency product series

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SDI instrument series

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Product Description

Hezhong Company is a primary distributor of DuPont ultrafiltration membranes. As the best partner of DuPont Chemical in the United States, we are the agent for DuPont ultrafiltration membranes, Filmtec reverse osmosis membranes, and nanofiltration membrane elements.
About DuPont

A world-leading science and technology company with a 217-year history;

One of the world's largest chemical companies, a Fortune 500 company;

2007 global sales reached US$54 billion;

Ranked as one of the world's most admired companies by Fortune magazine;

Produces over 3400 products, with nearly 200 factories worldwide, providing products and services to customers in 175 countries;

46,000 employees worldwide.
Ultrafiltration Applications

DuPont ultrafiltration technology is an advanced membrane separation technology based on the development of materials science, and has been widely used in various fields of industrial and municipal construction.

DuPont ultrafiltration uses polyvinylidene fluoride (PVDF) material and has a double-layer hollow fiber structure. Among PVDF ultrafiltration membranes used in industrial applications, DuPont ultrafiltration has a smaller nominal pore size, capable of removing almost all particles, bacteria (4-log removal rate), most viruses, and colloids. Despite its small pore size, its extremely high porosity allows ultrafiltration to achieve a flux comparable to microfiltration, making it a better choice than microfiltration in most cases.

DuPont ultrafiltration uses a non-clogging external pressure structure, with higher dirt holding capacity, larger filtration area, and easier and more thorough cleaning. The flow state design is mainly based on full-flow filtration, but the elements can also be easily converted to cross-flow filtration mode.

In the field of water treatment, ultrafiltration can be used to remove particles, colloids, bacteria, viruses, pyrogens, proteins, and high-molecular-weight organic substances from water, purifying the water.
Advantages of DuPont Ultrafiltration Membranes

Resistant to scaling: Membrane modules made of H-PVDF material

Excellent filtration performance, high flux

Durable double-layer fiber structure provides good durability and damage resistance

Very small pore size: 0.03um

High removal rate of bacteria and viruses

Both full-flow and cross-flow filtration methods are available

External pressure structure provides low blocking rate, high pollution load, high flux, and easy cleaning

Simple, vertical, and modular design makes the system more cost-effective and compact
Engineering Applications of Ultrafiltration

Drinking water: The current situation of water scarcity and surface water pollution threatens human drinking water sources. DuPont ultrafiltration products have high filtration accuracy and extremely high removal efficiency for various suspended solids, colloidal impurities, and especially pathogenic microorganisms such as Cryptosporidium, Giardia, and E. coli in water. After passing the health inspection of relevant national departments, it provides the most economical and reliable guarantee for your drinking water safety.

Reverse osmosis pretreatment: Ultrafiltration provides a more stable and higher-quality feed water source for reverse osmosis systems, maximizing the protection of reverse osmosis membranes from pollution and blockage, and greatly extending the life of the reverse osmosis system. DuPont ultrafiltration products are widely used in reverse osmosis pretreatment systems in the power, petrochemical, petroleum, and electronics industries in China, with a daily water treatment capacity exceeding 600,000 tons, and a market share far ahead of others.

Industrial wastewater and municipal wastewater reuse: Ultrafiltration can remove suspended solids, colloids, and organic matter from industrial wastewater and municipal wastewater, providing pretreatment protection for the deep treatment and reuse of wastewater. DuPont ultrafiltration products, with 8-inch diameter elements, have a large dirt holding capacity, and the tough PVDF membrane fibers can withstand more frequent water, air, and chemical cleaning.

Seawater filtration: The excellent performance of ultrafiltration allows it to completely replace traditional treatment methods such as coagulation, sedimentation, and multimedia filtration. In many reverse osmosis seawater desalination systems at home and abroad, it provides high-quality and stable feed water for seawater desalination reverse osmosis, setting an example for the application of seawater resources.

Currently, more and more DuPont ultrafiltration units have been put into operation in China, playing an increasingly important role in industrial water conservation and environmental protection in industries such as power, steel, and petrochemicals.
Product Models (Authorized Agent Sales)

SFP series UF membrane modules: SFP-2860, SFP-2880, SFP-2860XP, SFP-2880XP

SFD series UF membrane modules: SFD-2860, SFD-2880, SFD-2860XP, SFD-2880XP

FILMTECTM Filmtec RO membrane elements: CR100, XC70

FILMTECTM Filmtec UHP RO membrane elements: XUS180808

FILMTECTM Filmtec NF membrane elements: XC-N

Integra Pac TM ultrafiltration integrated modules: IP51 series, IP71 series