Water Treatment Engineering

AVIC International Hangzhou Co., Ltd. was born out of Aviation Industry Corporation of China and stands as one of the earliest central state-owned enterprises in China to expand globally. Originally founded as a subsidiary of AVIC International, we have inherited strict industrial standards and advanced engineering concepts from the aviation sector. Driven by the “Going Global” strategy of Chinese equipment manufacturing and the advancement of the “Belt and Road” initiative, we have gradually expanded our footprint across international markets in Asia, Africa, and Europe since 1993, including Turkey, Russia, Uzbekistan, Kazakhstan, Kuwait, Iraq, Italy, Algeria, South Africa, etc.

With more than 30 years of in-depth operation and accumulated industry experience, we have built solid international market resources and mature project delivery capabilities. Equipped with strong comprehensive engineering strength, our company delivers full-spectrum engineering services, boasting outstanding professional competence and technical advantages in water treatment engineering. We keep applying aerospace-level quality requirements to every project, providing clients with stable, efficient and customized water treatment solutions...


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Product Description

Membrane Water Treatment Full Process Solution

Centered around membrane technology, we have established a “technology + product + application” model to provide customers with high-quality products and comprehensive solutions, including consulting, design, packaging, installation, commissioning, and turnkey services for engineering projects, as well as professional water treatment operation and maintenance services, professional fault diagnosis, membrane replacement, membrane cleaning, and other specialized after-sales services for water treatment.

Seawater Pretreatment

The selection of the pretreatment process mainly depends on the raw seawater quality obtained from the intake system and the feed water quality required for the reverse osmosis (RO) system.

For seawater with a year-round oil and grease content exceeding 1 mg/L, turbidity exceeding 5 NTU, and high levels of algae and total organic carbon (TOC), the “flocculation – dissolved air flotation (DAF)/sedimentation – filtration” pretreatment process is recommended. Within this process, the filtration step should adopt either “dual-media filtration” or “single-media filtration followed by ultrafiltration (UF)/microfiltration (MF) membrane filtration”.

Gravity Filtration

Pressure Filtration

Ultrafiltration(UF) Membrane Modules

Membrane Product

Reverse osmosis (RO), Nanofiltration (NF)

Backed by a sprawling 100,000 m² total site area, our manufacturing facility sets the standard for scale and reliability. We achieve a substantial production unit capacity of 700 MLD (Million Liters per Day) and an annual membrane production capacity of 5 million m², guaranteeing consistent quality and rapid delivery for large-scale water treatment demands.

Purification Treatment

Modular RO Product - Skid-Mounted Systems

Our pre-engineered, factory-tested RO skids are ready for direct installation. The compact, plug-and-play design integrates all key components — membrane vessels, pumps, and controls — on a single skid. Simply connect piping and power, and the system is operational. This modular solution minimizes on-site work, accelerates commissioning, reduces capital costs, and is ideal for fast-track projects or remote sites.