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Water Treatment | Helping Coal-to-Methanol Plant Reduce Reclaimed Water Reuse Costs by 85%

Views: 185 Author: LOONG FILTRATION Publish Time: 2025-11-13 Origin: Site

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LOONG & China's Largest Coal-to-Methanol Plant

In the coal chemical industry, driven by the global demand for green development, reclaimed water reuse projects that realize water resource recycling have become a key link.

However, the wastewater in the coal chemical industry has complex components, high impurity content and strong dispersibility, which easily leads to frequent clogging of filtration systems—a common challenge faced by the entire coal chemical industry.

After learning about this pain point, LOONG Filter innovated a filter element solution, providing a new idea for solving the common problems in the industry.

I. Customer Background and Core Filtration Challenges

The customer in this case is China's largest coal-to-methanol plant. Its supporting reclaimed water reuse system is facing extremely severe challenges: wastewater treatment equipment shuts down repeatedly, making it difficult to produce water. This not only affects continuous production, but also brings huge labor operation costs, filter material consumption costs and solid waste treatment costs, becoming a major bottleneck for the plant to reduce costs and increase efficiency.

Reclaimed Water | Helping China's Largest Coal-to-Methanol Plant Reduce Reclaimed Water Reuse Costs by 85%

Challenges Customer Facing

• Rapid Contamination and Clogging of Filter Elements:

The incoming water in the plant contains a wide variety of pollutants and extremely high suspended solid content, leading to severe and rapid fouling and clogging of filter elements in the pretreatment system. The shortest replacement cycle is every 8 hours.

• High Maintenance Costs:

Repeated shutdowns of wastewater treatment equipment and difficulty in water production result in astonishing labor operation costs, filter material consumption costs and solid waste treatment costs.

II. LOONG’s Solution to Help Out

LOONG Filter

Solutions

Faced with this industry challenge, LOONG Filtration did not provide standard products but adopted a deeply customized technical approach. Our engineering team first conducted precise quantitative analysis of the customer's water quality and revolutionarily redesigned the filter element structure.

• Precise hierarchical design:

The overall solution adopts an 8-layer structure to conduct graded interception of particles with different particle sizes in the sewage, realizing step-by-step precise filtration.

• 3D interception:

A special dispersion layer is innovatively added between the membrane layers, which greatly increases the dirt-holding capacity of the filter element, upgrading the traditional "2D planar interception" to "2D interception" and significantly extending the service life of the filter element.

III. Implementation Results: Improved water production efficiency and lifespan

LOONG Filtration

Excellent Features

• Extended service life of pretreatment filter elements

The filter element replacement cycle has been greatly extended from the original shortest 8 hours to the shortest 7 days, and the longest can reach 17 days.

• Reduced maintenance costs

Considering various expenses such as filter element consumption, manual replacement, downtime and solid waste treatment, the customer's overall operating costs have been reduced by more than 85%.

• Stable and efficient operation

The frequency of system shutdowns has been drastically reduced, ensuring the continuous and stable water production of the reclaimed water reuse device and providing guarantee for the stable operation of the plant.

IV. Introduction to Core Products

Super-D Series Large-Flow Filter Elements

Adopting nano-scale ultra-fine fiber PP filter membranes combined with a 5-10 layer gradient precision membrane structure, it achieves efficient filtration and long service life performance.

• Efficient filtration: Under a pressure difference of 3.0 bar, its instantaneous flux reaches 1.5 times that of ordinary structures.

• Long service life: Under the same pollution conditions, the service life is more than 3 times that of conventional large-flow filter elements.

V. Reviews from Customer

"We have been troubled by the frequent replacement of filter elements for many years and have tried various solutions with little effect. The technical team of LOONG Filtration truly went deep into the site and provided a customized solution for our plant. They increased the service life of the filter elements from the hour level to the week level, which far exceeded our expectations and brought us huge economic benefits. LOONG Filtration is our trustworthy technology partner!"

VI. About LOONG FILTER

With profound technical accumulation and strong R&D capabilities, LOONG Filter focuses on providing customized and systematic filtration solutions for complex water quality problems in industries such as seawater desalination, coal chemical industry and petrochemical industry. It helps customers optimize operating costs, improve production efficiency and achieve sustainable development.

Contact LOONG Filtration today for a customized solution proposal.

EMAIL: sales@loongfiltration.com