Resources

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.

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.

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.

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.

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

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 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.

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.

RO systems produce wastewater during filtration, but this water doesn’t have to go to waste. Learn the best methods to reuse RO reject water safely and sustainably for household and non-potable applications.

Understand how often to replace each filter cartridge in your RO water purifier and what factors determine replacement. Learn whether replacement should be based on time, water volume, or water quality to keep your system performing at its best.

Find out why it’s necessary to drain or flush your water purifier for a period after installing or replacing a new filter cartridge. Learn how this step ensures clean, safe, and great-tasting water while protecting your RO system and health.

Learn about the key roles of pre-filters like PP cotton and activated carbon in reverse osmosis (RO) systems. Discover how they protect the RO membrane, improve purification efficiency, and extend the lifespan of your water purifier.

Learn what the wastewater ratio means in reverse osmosis (RO) systems, why wastewater is generated during filtration, and how to optimize your RO system’s efficiency to reduce water loss and save costs.

Understand the environmental challenges posed by brine generated in membrane-based water treatment systems such as RO and NF. Learn about sustainable and cost-effective methods for brine management, treatment, and disposal.

Learn about the environmental risks associated with byproducts generated during water treatment—such as disinfection byproducts, spent activated carbon, and discarded membrane modules—and discover proper management and disposal strategies for sustainable water purification.

Explore the leading technologies in seawater desalination, including Reverse Osmosis (RO), Multi-Stage Flash (MSF), and Multi-Effect Distillation (MED). Learn their advantages, costs, and environmental impacts to understand which solution best fits sustainable water production.

Learn the difference between offline cleaning and online cleaning in membrane filtration systems—when to use each, how they work, and how proper cleaning strategies can extend membrane lifespan and maintain high filtration performance.

Learn how to optimize the backwash process in membrane filtration systems—covering backwash intensity, duration, frequency, aeration, and chemical cleaning—to maximize membrane performance, reduce fouling, and extend lifespan.

Learn what “forward flush” or “flush mode” means in RO water purifiers, how it works, and why it’s essential for maintaining filtration efficiency, prolonging membrane life, and ensuring clean, safe drinking water.

Discover why ultrafiltration is increasingly used instead of traditional multimedia filtration in seawater desalination pretreatment. Learn about its advantages and role in ensuring membrane protection.

Learn the most effective cleaning techniques for inorganic scaling, organic fouling, and biological fouling in membrane systems. Optimize your water treatment process with our expert tips.

Learn why recovery rate control is critical in reverse osmosis (RO) systems, how excessive recovery affects membrane performance, and what problems can occur if the recovery rate is set too high. Understand the balance between water efficiency and system protection.

Explore the best adsorption and filtration materials beyond activated carbon, including molecular sieves, activated alumina, zeolite, ion exchange resin, and silica gel. Learn how each material works and what pollutants they effectively remove in water treatment applications.

Learn why multi-media filters (such as sand filters) arrange filter materials in layers according to particle size. Discover how this design enhances filtration efficiency, prevents clogging, and ensures consistent water quality for residential, commercial, and industrial systems.

Learn how to choose the most suitable filtration system for various water needs — from direct drinking to whole-home purification and softened water. Understand key technologies like activated carbon, ultrafiltration, reverse osmosis, and water softeners for optimal water quality.

Discover the unique features of nanofiltration membranes — a key technology positioned between ultrafiltration and reverse osmosis. Learn how nanofiltration balances precision, energy efficiency, and selective ion removal in modern water treatment systems.

Learn the key categories of water filtration methods arranged from low to high precision — from simple mechanical filters to advanced reverse osmosis and nanofiltration. Discover how each filtration stage improves water quality for residential, commercial, and industrial applications.

Learn what pollutants activated carbon removes from water and when it should be regenerated or replaced. Explore how carbon filters improve water quality in residential, commercial, and industrial applications.

Discover the major problems caused by high water hardness and explore the best water softening methods, including ion exchange, reverse osmosis, and salt-free systems for homes and industries.

Learn what the Treatability Index of wastewater means, how it is calculated, and why it’s essential for designing effective water treatment systems. Discover factors affecting treatability and how to improve wastewater management efficiency.

Discover how much water treatment systems waste, especially ultrafiltration (UF) systems. Learn what affects wastewater ratios, how to improve efficiency, and the best practices to minimize water loss in purification systems.

Aqualitek ultrafiltration explains what ultrafiltration is and how it works for reliable drinking water purification UF and efficient wastewater recycling UF solutions by AQUALITEK. Learn benefits, applications, and system design.

Discover AQUALITEK insights on water recovery from urban wastewater for irrigation using ultrafiltration. Learn ultrafiltration wastewater treatment methods for sustainable wastewater reuse and resilient urban irrigation.

Discover wastewater irrigation with AQUALITEK: expert insights on sustainable irrigation, wastewater reuse benefits, treatment solutions and safe application to enhance water security and crop yields.

AQUALITEK explains RO membrane replacement: symptoms, tests and clear guidance on when to replace RO membrane. Learn about RO filter lifespan, performance loss and maintenance tips to extend membrane life.

Learn practical tips to make RO water healthy by remineralization of RO water and filtration upgrades. Improve reverse osmosis water taste, safety and mineral balance with AQUALITEK insights.

Can I Drink RO Water Directly? AQUALITEK explains if RO water is safe to drink, benefits of reverse osmosis drinking water, and practical tips to ensure safe drinking water at home.

Discover the best type of water for reverse osmosis (RO) systems.Learn how different water sources-tap,brackish,seawater,and well water-after performance,system design,and purification efficiency.

Can you drink ocean water if you desalinate it? AQUALITEK explains desalination drinking water methods, answers desalinated water safe concerns, and guides safe steps, risks and best practices for potable use.

Unsure about your water quality? This definitive guide reveals the 5 best methods to test if your water is pure, from simple DIY checks to professional lab analysis. Ensure your safety today!

Discover the difference between RO (Reverse Osmosis), NF (Nanofiltration), and UF (Ultrafiltration). Learn how each membrane works, their applications, benefits, and which filtration technology is best for your water treatment needs.

Tailored Water Treatment Solutions for One of Asia’s Most Water-Challenged Nations
Indonesia’s Water Landscape: Rich in Sources, Strained by Demand
Despite high annual rainfall and vast river systems, Indonesia faces growing water scarcity and quality issues due to uneven distribution, pollution, and climate volatility.

Learn what hard water is, what causes it, its impact on your home and health, and how to treat it with softeners and filters. Complete expert guide.

Discover advanced water treatment plant machinery and connect with reliable suppliers to ensure efficiency and sustainability in industrial water solutions.

Discover how sea water desalination machines work, the best types available, and how to choose the right system for homes, ships, or industrial use.

Everything You Need to Know About Water Softeners & Softener Systems
Hard water can wreak havoc on plumbing systems, appliances, skin, and even energy bills. Despite being safe to drink, water with high mineral content (mainly calcium and magnesium) can be costly in the long run. That’s where a water softener or softener system comes in—transforming your water supply, extending appliance life, and improving daily comfort.
This guide dives deep into the world of water softening, exploring the science, system types, installation factors, and cutting-edge innovations behind modern softener systems. Whether you're a homeowner tired of soap scum or a facility manager facing scale buildup in industrial systems, this article is for you.

Access to clean, safe drinking water is a fundamental human right—yet millions worldwide still face challenges due to contamination, scarcity, and aging infrastructure. For industries and communities prioritizing water quality, reverse osmosis (RO) technology has emerged as a gold standard for producing pure, reliable drinking water. At Aqualitek, we specialize in designing and delivering advanced RO systems tailored to meet the highest standards of safety, efficiency, and sustainability.