LEFILTER EPC Project | Case Study of Double Cyclone Filter in the Transformation of Turbidity Circulating Water System in the Steel Industry

Lefilter2026-01-30 BACK TO LIST

In the industrial field, the stability and efficiency of water treatment systems directly affect production 

safety and cost control. With the improvement of environmental protection requirements and 

technological iteration, dual cyclone filters have become one of the core equipment for industrial water 

treatment due to their unique design and high efficiency performance. Implementing such projects 

through the EPC (Engineering General Contracting) model demonstrates significant advantages in 

optimizing processes, controlling costs, and ensuring quality.


EPC mode

Control the entire process, reduce costs and increase efficiency

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The EPC model is centered around the integrated service of "design procurement construction", which 

integrates resources and collaborates with professional teams to achieve project lifecycle management. 

The advantages of EPC mode are particularly prominent in the upgrading or construction projects of 

dual cyclone filters:

Technical integration: From scheme design to equipment selection, the general contractor can customize 

the optimal technical route based on on-site conditions to ensure filter performance and system compatibility.

Cost transparency: Unified procurement and construction management, reducing redundancy in intermediate 

links and lowering hidden costs.

Controllable construction period: Collaborative operation throughout the entire process to avoid delays in 

multiple links and ensure timely delivery of the project.


Double swirl filter

The 'cleaner' of industrial water treatment


The dual cyclone filter adopts cyclone separation technology to efficiently separate suspended particles, 

sediment and other impurities in water through centrifugal force, and has the following characteristics:


Efficient purification

Strong processing capacity, meeting the requirements of large-scale industrial circulating water systems.

Low energy consumption operation

Structural design optimization, low backwash frequency, significant energy savings in long-term use.

Convenient maintenance

Modular component design, supporting quick replacement of filter media, cleaning of sludge, and reducing 

maintenance difficulty.

Application scenarios

Steel plant turbid circulating water treatment, chemical plant circulating cooling system, municipal sewage 

pretreatment, etc.


Practical case of EPC mode

A steel plant filter upgrade project


Taking a large steel enterprise as an example, its turbid circulating water system failed to meet the water 

quality standards due to equipment aging, and it is urgent to upgrade 16 dual cyclone filters. Through the 

implementation of EPC mode, the general contractor completes the following key tasks:

Technical optimization: Redesign the filter layer structure and use hydrophilic oleophobic fiber balls to 

improve filtration performance.

Equipment update: Replace faulty electric valves (DN200/300 butterfly valves, DN150 ball valves) to ensure 

stable matching of the control system.

Environmental compliance: Standardize the treatment of waste filter media and sludge throughout the 

process to avoid the risk of secondary pollution.

Warranty commitment: After repair, the equipment is guaranteed for 12 months, with a 30% increase in 

water efficiency and a 15% reduction in operating costs.


The core value of choosing EPC mode


01 Controllable risk

The general contractor assumes technical, quality, and schedule responsibilities, and the owner does not 

need to coordinate multiple parties.


02 Long term returns

By implementing energy-saving design and efficient operation and maintenance solutions, we assist 

enterprises in achieving their sustainable development goals.


03 Quick Response

Our professional team provides one-stop service from installation and debugging to after-sales support, 

ensuring the stable operation of the system.


The upgrade of industrial water treatment systems is an essential requirement for environmental protection 

and a key measure for enterprises to reduce costs and increase efficiency. By combining EPC mode with dual 

cyclone filter technology, enterprises can quickly achieve system optimization and enhance their core 

competitiveness. In the future, with the promotion of intelligent and green manufacturing, this model 

will show its value in more fields.

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