Primary benefits
Supports higher recovery targets where silica is limiting, reduces deposition tendency, and helps stabilize performance in compatible RO/NF systems.
Product Water Treatment
Antiscalant (High-Silica)
RO antiscalant formulated to inhibit silica scaling and mixed salt deposition. Selected for high-silica feeds where recovery is limited by silica, silicates, and co-precipitating salts.
Silica-focused RO/NF grade
Mixed salts support
Drum / IBC / bulk
Selection based on silica (SiO₂), pH, temperature & recovery/COC
Documentation: SDS / COA / TDS (as available) on request
Packaging: drums / IBC / bulk (as applicable)
Atlas Global Trading Co. coordinates supply by matching inhibitor/dispersant profile to your water analysis and operating targets (recovery/COC, pH window, temperature, and membrane type).
Silica note: Silica risk depends strongly on pH and temperature and may worsen non-linearly at higher concentration factors. Share your normal/peak conditions and your target recovery so we can align a realistic dose window and procurement spec.
Product overview
Silica scaling is a common recovery limiter in RO systems—especially in groundwater, industrial reuse, and high-TDS feeds. As concentration factor increases, dissolved silica can polymerize and/or form silicate deposits, often interacting with hardness, metals, and other salts. High-silica antiscalants are selected for inhibition and dispersion performance under these conditions, helping reduce deposition risk that drives flux loss, pressure drop, and frequent CIP.
Controls more than silica
Designed to address mixed scaling risk (silica + carbonates/sulfates) and to disperse particulates that contribute to fouling.
Procurement-ready approach
We align grade, dose window, packaging, and documentation to your site conditions so you can repeat purchase with fewer re-qualifications.
Note: Maximum allowable silica and recovery depends on silica speciation, pH, temperature, co-ions, and membrane supplier guidance. Always validate with projection calculations and field monitoring.
Applications
Typical high-silica use cases. We’ll align grade selection and dosing strategy to your water chemistry, recovery goals, and membrane compatibility.
- Brackish water RO systems with elevated silica (groundwater, coastal wells, mixed sources)
- Industrial reuse / ZLD pretreatment where silica limits recovery and increases CIP frequency
- Municipal reuse and tertiary treatment RO where silica + hardness drives mixed scaling
- High-recovery RO trains targeting reduced concentrate volume with controlled scaling risk
- Applications with mixed salt deposition (silica + carbonates/sulfates) and particulate fouling interactions
Where it helps most
High-silica feeds, higher recovery goals, and conditions where silica becomes the binding recovery constraint.
Mixed-scale reality
Silica may co-precipitate with hardness, sulfates, and metals; selection should reflect the full scale risk profile.
Operations impact
Lower deposition tendency supports stable flux, reduced ΔP growth, and longer intervals between CIP in compatible systems.
Technical alignment
What teams typically confirm when silica is the recovery limiter.
Silica speciation
Provide silica as SiO₂ and any notes on colloidal vs. reactive silica if available. Speciation affects scaling tendency and program design.
pH & temperature
Silica behavior is sensitive to pH and temperature. Share your operating window (normal/peak) and any pH adjustment strategy.
Recovery / COC
Higher recovery concentrates silica and co-ions. Share your target recovery/COC and any constraints on concentrate handling.
Mixed-scale co-ions
Hardness, alkalinity, sulfate, iron/manganese can drive mixed deposition and fouling layers. Full analysis improves grade selection.
Pretreatment performance
Share SDI/turbidity, filtration setup, and any coagulation steps. Particulates can accelerate deposition and shorten CIP intervals.
Trend data
ΔP/flux trends and CIP frequency help confirm whether scaling is the dominant issue and refine the recommended dose window.
Common outcomes teams target
- Higher sustainable recovery where silica is limiting
- Reduced silica/mixed deposition and slower ΔP growth
- Longer interval between silica-related CIP events
- More predictable operating window with changing feedwater
If you have a deposit sample report or photos, include them—this often accelerates alignment dramatically.
Use guidance & operational notes
Practical notes for operations and engineering alignment. Final settings must be validated on-site.
Typical dosing concept
Typically dosed continuously in low ppm range (product basis), depending on silica (as SiO₂), pH, temperature, recovery/COC, and co-ion scaling risk. Dose must be confirmed with projection and field monitoring.
Injection location
Dose upstream at a well-mixed point prior to cartridge filtration and RO high-pressure pump (site-dependent). Avoid direct mixing with incompatible chemicals; ensure steady dosing through flow swings.
Key monitoring
Track RO ΔP/flux, conductivity, SDI/turbidity, and feed chemistry (silica, hardness, alkalinity, sulfate). Adjust dose if recovery, pH, or source water changes.
Program compatibility
Confirm compatibility with membranes, pH adjustment, coagulants, biocides/oxidants, and upstream disinfectants. Share your chemical program so we can avoid adverse interactions.
Silica vs. pH
Silica behavior is sensitive to pH and temperature. Provide your operating pH window so we can select an appropriate inhibitor/dispersant profile.
CIP strategy alignment
Antiscalants reduce scaling risk but do not replace pretreatment or cleaning. Align with cartridge filtration, pretreatment performance, and a CIP plan matched to your foulant types.
Safety note: For industrial water treatment use. Follow SDS for handling, PPE, storage, and disposal. Always comply with local regulations and site requirements.
Typical specifications & formats
Values depend on grade and customer requirements. Confirm details on quotation and COA.
Chemistry
Inhibitor/dispersant blend optimized for high-silica & mixed salt scaling (grade dependent)
Form
Typically liquid concentrate for continuous dosing
Appearance
Clear to amber liquid (grade dependent)
pH profile
Designed for RO programs across defined pH windows (confirm on offer)
Packaging
Drums, IBC, bulk (as applicable)
Documentation
SDS and COA (and TDS as available) on request
Indicative procurement specification (example)
Below is a common procurement/QC format. Exact limits should be confirmed in your RFQ and via the supplied COA.
| Parameter | Typical listing (indicative) | Commercial / QC note |
|---|---|---|
| Product | Antiscalant (high-silica) for RO/NF | Confirm membrane model/material and operating limits |
| Primary objective | Silica inhibition + dispersancy | Provide silica as SiO₂ and any speciation notes if available |
| Secondary objective | Mixed salts (carbonates/sulfates) support | Share hardness/alkalinity/sulfate and metals (Fe/Mn) |
| Operating window | Defined by customer (pH + temperature + recovery/COC) | Include normal/peak temperature and pH control strategy |
| Dosage | Set by projection and field validation | Include target recovery/COC and any seasonal variability |
| Documentation | SDS / COA / TDS (as available) | Request language/format and onboarding templates upfront |
| Packaging | Drums / IBC / bulk (as applicable) | Define net weight, palletization, storage constraints |
If you have a project spec template or QA checklist, share it—our quotation can mirror your required fields.
Specifications may vary depending on batch, origin, and packaging selection.
FAQ
Quick answers for engineering, operations, and procurement workflows.
Why is silica scaling harder to manage than carbonate scale?
Silica can polymerize and form persistent deposits, and it often interacts with other ions/solids to create mixed layers. Risk is strongly influenced by pH, temperature, and concentration factor—so selection is more condition-specific.
Is this only for RO, or can it be used for NF too?
High-silica antiscalants are typically used in RO and can be applicable to compatible NF systems. Compatibility depends on membrane materials, operating window, and the broader chemical program—share your details for alignment.
What data helps you respond fastest?
Feedwater silica as SiO₂ plus full ion analysis, target recovery/COC, pH window, temperature range (normal/peak), pretreatment details, and any trend data (ΔP/flux, CIP interval).
Does antiscalant eliminate the need for CIP?
No. It reduces scaling risk and may extend CIP intervals, but pretreatment quality, operating stability, and cleaning strategy still matter. Align dosing with SDI/turbidity control and a CIP plan matched to your foulant types.
How do I write an RFQ message that gets a usable offer?
Include system type, silica (SiO₂) + full analysis, recovery/COC target, pH window, temperature, pretreatment/chemicals, current issues, volume/packaging, destination + Incoterms, and required documents (SDS/COA/TDS).
Prefer email? contact@atlastradehouse.com