Blog

In ultrapure water production for electronics and pharmaceutical manufacturing, the combination of RO (Reverse Osmosis) and EDI (Electrodeionization) is the industry standard. This article explains why EDI units are typically installed after RO systems, how they complement each other, and what advantages this configuration offers for high-purity applications.

Reverse osmosis (RO) plays a critical role in advanced wastewater and greywater reuse, producing high-quality reclaimed water. However, wastewater presents unique challenges such as fouling, scaling, and organic loading. This article explores the main operational challenges and effective pretreatment strategies to ensure stable RO performance.

Proper storage and maintenance during short-term or long-term RO system shutdowns are essential to prevent microbial growth, scaling, and irreversible membrane damage. This article explains the standard procedures, preservation chemicals, and best practices for safe membrane protection.

Abnormally high influent and inter-stage pressures are early warning indicators of operational issues in reverse osmosis (RO) systems. Understanding their causes helps operators quickly diagnose problems, prevent membrane damage, and optimize system performance.

Chemical cleaning is an essential maintenance process for reverse osmosis (RO) membranes, restoring flux, maintaining salt rejection, and extending membrane life. This article explains how RO chemical cleaning works, the cleaning agents used, and procedures tailored to different fouling types.

Membrane fouling is one of the most critical challenges in reverse osmosis (RO) operations. Understanding the types, causes, and characteristics of fouling helps optimize pretreatment design, cleaning strategies, and membrane lifespan.

Discover 2026's top 5 industrial reverse osmosis systems. Reliable, cost-effective water treatment solutions for all industrial needs.

Standardized flux and standardized salt transmittance are key indicators for monitoring RO membrane health. They eliminate the effects of temperature and pressure changes, helping operators accurately evaluate membrane performance degradation over time.

Learn what SDI (Silt Density Index) means in reverse osmosis (RO) systems, why it’s one of the most important parameters for pretreatment design, how it is measured, and what levels are acceptable for different RO applications.

Online Cleaning System (CIP) is crucial in industrial RO plants to maintain membrane performance and extend service life. This article explains why CIP is necessary, how to design an efficient cleaning system, and how to choose suitable cleaning chemicals for different fouling types.

Energy Recovery Devices (ERDs) play a critical role in seawater reverse osmosis (SWRO) systems by capturing and reusing high-pressure energy from concentrated brine. This dramatically reduces power consumption, improves membrane performance, and lowers the cost of desalination. This article explains working principles, types of ERDs, and includes technical diagrams for system engineering reference.

Learn how brine (concentrate) water recirculation enhances RO system recovery, and understand the associated risks such as scaling, fouling, and operational instability — with best engineering practices.

This guide explains the key types of high-pressure pumps used in industrial RO systems—centrifugal pumps and plunger (positive displacement) pumps. It covers performance characteristics, selection criteria, and best application scenarios to help engineers achieve high efficiency, stability, and cost-effectiveness in RO water treatment design.

Learn how to choose the right reverse osmosis (RO) membrane housing material — FRP or stainless steel — with a complete comparison of working conditions, corrosion resistance, cost, and application suitability.

Discover how industrial RO systems use EDI (electrodeionization) or mixed-bed ion exchange as polishing steps to produce ultrapure water, and understand the key design considerations for reliable water quality performance.

Learn how flow rates and pressures are configured between stages in multi-stage RO systems, why pressure drops occur, and when an interstage booster pump is required for stable and efficient operation.

Learn how to select the right reverse osmosis (RO) membrane element — brackish water, seawater desalination, or anti-fouling membrane — and discover the key considerations for large-scale industrial RO design.

Learn the key differences between flux and recovery in reverse osmosis (RO) systems, and discover how to optimize both for better energy efficiency, lower operating cost, and reduced membrane fouling.

Learn how to design the right pretreatment process for industrial reverse osmosis (RO) systems based on source water characteristics, including surface water, groundwater, seawater, and wastewater. Improve RO performance and protect membranes with targeted pretreatment strategies.

Learn whether you can replace RO water purifier filters on your own, how difficult the process is, and what precautions to take. A complete step-by-step guide to help you perform safe, effective filter replacement at home.