Less Steps, More Years

Innovative Microfiltration, Efficiency Beyond Limits.

From New Energy to Chemical, Proven Across Industries

With 5,000+ systems deployed worldwide, empowering higher yields and greener production.

Since 1986-Committed to Excellence in Microfiltration

For decades, our innovation in microfiltration has been focused on solving complex filtration challenges.

Mastering Microfiltration for 40 Years

Zhejiang Dongou Filter Manufacturing Co., Ltd.

Founded in 1986, Dongou specializes in polymer-based and surface layer filtration technology to deliver unmatched performance in temperature resistance, chemical compatibility, and long-term durability.

From integrated filtration–washing units and reaction–concentration systems to continuous crystallization and activated carbon regeneration, we provide tailored solutions that drive productivity and sustainability across industries.

We offer more than a product; we provide a precision-driven process. With our advanced filtration selection technology and comprehensive laboratory trials, we precisely tailor solutions to address diverse application requirements.

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Precision Microfiltration Across Industries

From battery material to chemicals, pharmaceuticals, and mining, Dongou's microfiltration technology ensures precise particle control and long-lasting performance. Explore our solutions below.

Cases

From pilot-scale trials to full-scale industrial installations, Dongou's filtration systems have earned the trust of global clients through reliable performance, engineering precision, and proven results across diverse industries.

5000+

Deployed Systems

5+

Regions

Largest-ever Installation Volume per Contract

1000+

Units

Why Dongou Microporous Filters Outperform Candle Filters & Float Ball Filters in TiO₂ Production

Titanium dioxide (TiO₂) manufacturing demands precise solid-liquid separation to ensure product purity, process efficiency, and cost control.

Efficient Glyphosate Filtration Technology for Agrochemical Excellence

As a major agricultural country, China has a significant demand for glyphosate, a non-selective, residue-free herbicide. In 2007, our analysis

Sustainable Wastewater Filtration for Power Plants: Innovation Sets Industry Standards

This story began in 2001 when an environmental business owner from Taiwan discovered a company specializing in wastewater filtration technology

From Lab to Industrial Standard: How Dongou’s Concentrator Empowered EV Battery Manufacturing

In 2016, a Chinese tungsten industry leader (Shanghai-listed, SHA: 600549) faced dual challenges in ternary precursor production

News

KHIMIA 2025 Exhibition Recap — Advancing Industrial Filtration for Chemical Processes

KHIMIA 2025 brought together companies from across the global chemical and process industries, and DongouMF was pleased to participate in

Dongou at BIX Korea 2025 — Precision Filtration Solutions for the Pharmaceutical Industry

Seoul, Korea — November 2025 At BIOPLUS-INTERPHEX Korea 2025 (BIX 2025), Dongou MF showcased its advanced polymer-based microfiltration and solid–liquid

ICBR 2025 Insights: Key Trends Shaping the Future of Battery Recycling

At ICBR 2025, global experts and industry leaders gathered to address the challenges and opportunities shaping the future of battery

Dongou Spearheads National Standard Drafting in Filtration Technology, Setting a New Industry Benchmark

Amid the global shift toward the green economy, industries such as environmental protection and new energy are experiencing rapid growth,

Events

23rd Pharma Asia

December 2-4

Expo Center, Karachi, Pakistan

KHIMIA' 2025

November 10–13, 2025

Timiryazev Center, Moscow, Russia

Dongou - Your Partner in Microfiltration Solutions