Guides & FAQs

We offer complete water-treatment solutions, including RO/UF systems, filtration units, wastewater treatment, dosing & control systems, industrial chemicals, and comprehensive after-sales support.

Our technical team conducts a detailed water analysis, understands your process requirements, and then recommends the most suitable treatment solution—whether filtration, softening, RO, UF, or wastewater treatment. 

Yes. HNJ Hydro Chem provides onsite system inspections, performance audits, and technical surveys to identify problems and recommend improvements.

Pretreatment removes turbidity, hardness, chlorine, organics, and suspended solids. This prevents membrane fouling, scaling, and chemical damage—ensuring better efficiency and longer membrane life.

Replacement frequency depends on water quality, flow rate, and usage. Typically:

• RO membranes: 2–3 years
   
• Activated carbon: 6–12 months
   
• Softener resin: 2–5 years

Regular maintenance and water testing help determine the exact schedule.

Yes. Our wastewater systems can treat effluent through coagulation, biological treatment, filtration, and polishing—making it suitable for reuse in cooling towers, irrigation, flushing, or safe discharge.

All systems can be fully customized to meet your plant size, water quality, flow rate, space, and operational requirements. 

We serve manufacturing, food & beverage, textiles, pharmaceuticals, power plants, oil & gas, hospitals, laboratories, commercial buildings, and municipal projects. 

Yes. Our team installs the complete system, performs start-up and commissioning, and ensures optimal performance from the first day of operation.

We provide preventive maintenance, cleaning, membrane care, resin regeneration, calibration, media replacement, troubleshooting, and emergency technical support.

Yes. Our chemicals—including antiscalants, biocides, corrosion inhibitors, coagulants, and pH adjusters—are formulated for compatibility with RO/UF systems, boilers, cooling towers, and wastewater treatment plants. 

Yes. We supply RO membranes, cartridges, resin, activated carbon, dosing pumps, control panels, sensors, valves, and other essential parts.

Standard systems are delivered within 5–7 business days. Customized systems may vary depending on design specifications, production, and installation requirements. 

You can contact us by phone, WhatsApp, email, or through our website. Simply share your water quality report and system details, and our team will prepare a competitive quotation.

Yes. All our solutions are designed with sustainability in mind—reducing energy use, minimizing waste, and helping industries meet environmental compliance standards. 

Reverse osmosis is a water treatment process that involves pushing water through a semipermeable membrane to remove impurities and contaminants. The process is effective at removing minerals, bacteria, viruses, and other contaminants from water.

No, water treatment cannot remove all contaminants from water. Some contaminants, such as volatile organic compounds, may require additional treatment methods beyond those used in traditional water treatment processes.

Chlorine is a common disinfectant used in water treatment that can help to kill harmful bacteria and viruses. It is also relatively inexpensive and easy to use.

Fouling and scaling are caused by high levels of hardness, iron, manganese, silica, microbial growth, and organic matter. Pretreatment with softeners, anti-scalants, and filtration is essential to prevent damage and extend membrane life.

Dosages are calculated based on water chemistry (hardness, alkalinity, pH, TDS), flow rate, system pressure, and operating temperature. HNJ Hydro Chem uses lab analysis and software modeling to optimize chemical dosing. 

• SAC Resin: High capacity for water softening and demineralization; effective for complete hardness removal.
   
• WAC Resin: Mainly used for bicarbonate removal; ideal for pH adjustment and partial demineralization.

Selecting the resin type depends on feedwater composition and process requirements.

Efficiency depends on contact time, particle size, water temperature, chlorine concentration, and organics load. Regular media replacement and backwashing are required to maintain adsorption performance.

Key parameters include TDS, conductivity, pH, ORP, flow rate, temperature, and pressure differentials. Automated sensors with SCADA or control panels provide real-time monitoring and alerts for deviations.

ZLD is a system that recovers nearly all water from wastewater, leaving minimal brine for disposal. It is achieved through a combination of RO, evaporators, crystallizers, and advanced filtration systems.

Boiler water requires daily monitoring of pH, conductivity, hardness, and oxygen content. Chemical dosing for corrosion inhibition, scale prevention, and oxygen scavenging is typically continuous or daily depending on system size and design.

Through a combination of biocides, corrosion inhibitors, periodic cleaning, and monitoring of pH and conductivity. Properly dosed treatment prevents slime, algae, and Legionella growth while protecting system surfaces.

Resin regeneration is based on exhaustion cycles, measured as capacity in grains per liter or throughput in m³. Replacement occurs when regeneration no longer restores original capacity or water quality falls below specification.

Yes. HNJ Hydro Chem designs integrated solutions combining filtration, softening, RO, UF, activated carbon, and chemical dosing to handle high TDS, hardness, iron, silica, or complex wastewater streams, ensuring optimized performance and minimal downtime.