Water Recycling

Want to Make Effective Use of Water Resources and Reduce Wastewater and Water Usage

Reducing the large amount of water used in factories and facilities while minimizing wastewater discharge as much as possible leads not only to cost reduction but also to reduced environmental impact. However, in practice, it is often difficult to determine which wastewater can be reused, resulting in insufficient water savings.

To solve these issues, water reuse using high-performance filtration technology is effective. Microza® industrial hollow fiber membranes remove fine impurities while maintaining stable treatment, enabling secure water quality for reuse. This makes it possible to reduce overall water consumption and wastewater discharge across the entire factory.

Enabling Compliance with Wastewater Regulations and Discharge Standards

In recent years, regulations on discharge standards, COD, and BOD have been tightened, with phosphorus and nitrogen also increasingly regulated. Responding to these changes often requires costly upgrades to existing facilities and stabilization of biological treatment processes.

The key to solving these issues is Microza® hollow fiber membranes, which combine stable filtration performance and high chemical resistance.

Providing Flexible Solutions for Various Raw Water and Wastewater

Some factories and facilities require water recycling tailored to unique conditions and water quality characteristics, such as seawater desalination or oil detection in wastewater. Meeting these needs requires comprehensive expertise in membrane selection, system design, and operational know-how.

Based on 50 years of membrane filtration technology and extensive operational data, Microza® provides optimized system designs tailored to each customer's specific water quality conditions.

For example, seawater desalination requires salt removal efficiency and membrane durability. By designing and developing processes that utilize the chemical resistance and high filtration performance of Microza®, it is possible to build systems that stably produce fresh water.

Microza® Long-Standing Trust and Track Record

For over 40 years, Microza® has been used in facilities of various sizes and regions worldwide, meeting diverse water treatment needs. Its proven durability and reliability, backed by years of technical expertise and experience, provide strong support for customers.

Achieving High Filtration Performance and Chemical Resistance

In water purification facilities, when the raw water has a high organic content or contains large amounts of scale-forming components such as iron and manganese, stronger chemical cleaning than usual is required, making membrane chemical resistance and long-term stability important issues.

Microza® PVDF membranes use proprietary TIPS technology, achieving high filtration stability, filtration speed, and excellent chemical resistance. This maintains performance under harsh cleaning conditions and ensures strength and durability over long periods.

Reducing Coagulant Dosage and Sludge Treatment to Lower Operational Burden

In conventional coagulation-sedimentation plus sand filtration methods, operators must adjust the coagulant dosage according to raw water quality. The use of coagulants also generates sludge, requiring additional effort and cost for waste disposal. Especially with raw water of relatively high turbidity, the complexity of treatment increases, often resulting in higher chemical usage with conventional methods.

With Microza® membrane filtration solutions, it is possible to achieve favorable water quality without coagulant use depending on raw water conditions. This enables a significant reduction in coagulant usage. For relatively turbid raw water, submerged membranes are particularly effective, minimizing sludge generation while ensuring stable treatment. As a result, sludge treatment effort and costs are reduced, lowering overall operational burden and achieving more efficient water purification.

Supporting Optimal System Design with 50 Years of Operational Data and Expertise

Microza® leverages nearly 50 years of membrane filtration technology and extensive operational data to propose optimal system designs. We evaluate not only membranes and equipment but also the entire process, achieving both cost reduction and performance improvement. Our accumulated expertise enables us to quickly provide optimal solutions tailored to site requirements and offer comprehensive post-installation support.