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Reverse osmosis cleaning agent RO cleaning agent with acidic cleaners (low pH) in powder form and solid content ≥95.0% for water treatment
| Brand Name | HOYOSHEE |
|---|---|
| Model Number | HYX-WT05 |
| Minimum Order Quantity | 1KG |
| Price | Negotiable |
| Packaging Details | 1kg;|25kg;|100kg |
| Delivery Time | 5-8 working days |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 500 Ton/Month |
Product Details
| Form | Powder | Color | Light White |
|---|---|---|---|
| Density (20℃)g/cm³ | 2.13 G/cm³ | PH(use Range) | 2.5-5.5 Or 11.0-12.0 |
| Storage | At Room Temperature | Solid Content | ≥95.0% |
| Highlight | Acidic Cleaners Reverse osmosis cleaning agent,Powder form RO cleaning agent,Solid content ≥95.0% Water treatment chemical |
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Product Description
Reverse Osmosis Cleaning Agents
Reverse osmosis (RO) cleaning agents are specialized chemical formulations used to restore the performance of RO membranes by removing accumulated foulants. Over time, all RO systems experience fouling—the buildup of inorganic scales, organic matter, microorganisms, and colloidal particles on the membrane surface. This fouling manifests as decreased permeate flow, increased salt passage, or elevated differential pressure. Regular cleaning with appropriate agents is essential to maintain system efficiency and extend membrane life.
Why RO Membranes Require Cleaning
Fouling is inevitable in RO operations. Symptoms indicating the need for cleaning include:
| Symptom | Description |
|---|---|
| Decreased normalized permeate flow | Reduced water production |
| Increased salt passage | Lower product water quality |
| Increased differential pressure | Higher pressure drop across membranes |
If left unaddressed, severe fouling can cause irreversible membrane damage. Proper cleaning restores system performance, reduces energy consumption, decreases cleaning frequency, and extends membrane life.
Classification of RO Cleaning Agents
RO cleaning agents are classified primarily by their chemical properties (pH), which determines their target foulants.
Acidic Cleaners (Low pH)
Core Feature: Low pH value (typically 2.0–4.0), formulated with organic or inorganic acids (e.g., citric acid, hydrochloric acid) and chelating agents.
Target Foulants:
- Inorganic scale deposits: calcium carbonate (CaCO₃), calcium sulfate (CaSO₄), barium sulfate (BaSO₄), strontium sulfate (SrSO₄)
- Metal hydroxides and oxides: iron (Fe), manganese (Mn), copper (Cu) deposits
- Carbonate and phosphate scales
Applications: Systems with high hardness feed water, groundwater sources, industrial cooling water, and systems with corroded pipelines.
Product Examples: RoClean L504 (Kurita), OptiClean™ A+ (PWT), MAX-GUARD 200 (Fairbanks Morse), MCH 3181 (CESE2)
Alkaline Cleaners (High pH)
Core Feature: High pH value (usually 9.0–12.5), composed of alkaline agents (sodium hydroxide, potassium hydroxide), surfactants, dispersants, and sometimes chelating agents.
Target Foulants:
- Organic matter: humic acid, fulvic acid, oils, and greases
- Biological fouling: bacterial slime, algae, biofilm
- Colloidal particles: clay, silt, and other particulates
- Natural organic materials
Applications: Systems with high organic content in feed water (surface water, municipal wastewater reuse), and systems experiencing biofouling.
Product Examples: RoClean L511 (Kurita), OptiClean™ B+ (PWT), HDC-ALK-003 (Hatenboer-Water), MAX-GUARD 201 (Fairbanks Morse)
Enzyme-Based Cleaners (Near-Neutral pH)
Core Feature: Near-neutral pH (8.0–9.0), formulated with enzymes that break down biological components.
Target Foulants:
- Biological fouling: biofilm, bacterial secretions, and microbiological matter
- Proteins and polysaccharides that form the biofilm matrix
Advantages: Cleaning at moderate pH conditions extends membrane life; enzymes are biodegradable and environmentally friendly.
Product Examples: OptiClean™ N+ (PWT), Tergazyme® (Alconox)
Cleaner Types by Target Foulants
| Cleaner Type | pH Range | Primary Target Foulants | Key Components |
|---|---|---|---|
| Acidic | 2.0–4.0 | Inorganic scales (carbonates, sulfates), metal oxides, iron deposits | Acids (citric, HCl), chelating agents |
| Alkaline | 9.0–12.5 | Organic matter, biofouling, colloids, silt | NaOH/KOH, surfactants, dispersants |
| Enzyme-Based | 8.0–9.0 | Biofilm, protein-based foulants, microbiological matter | Proteases, other enzymes |
Physical Forms and Applications
| Form | Advantages | Applications |
|---|---|---|
| Liquid | Ready to dilute, easy to dose, uniform concentration | Industrial RO systems, large-scale operations |
| Solid (Powder/Granule) | High concentration, small volume, low transport cost, long shelf life | Remote areas, small-scale systems, commercial RO units |
Cleaning Best Practices
Two-Step Cleaning Protocol
For membranes with mixed fouling (both inorganic and organic/biological), a two-step process is recommended:
- Alkaline cleaning first — removes organics, biofouling, and particulates
- Acidic cleaning second — removes inorganic scales and metal oxides
This sequence prevents organic matter from interfering with scale removal.
Application Guidelines
| Parameter | Recommendation |
|---|---|
| Dilution Ratio | Typically 2–3% or 5–10% depending on product |
| pH Monitoring | Measure pH every 5–20 minutes during cleaning until stable |
| Rinsing | Thorough rinse after cleaning; monitor TOC or conductivity to ensure complete removal |
| Temperature | Follow membrane manufacturer temperature limits; do not exceed specified temperature |
Effectiveness Example
A 2024 study comparing cleaning strategies found that alkaline cleaning with NaOH/SDS (sodium dodecyl sulfate) more than doubled normalized flux compared to untreated membranes, demonstrating superior cleaning efficiency for biofouling.
Environmental Considerations
Modern RO cleaning agents increasingly focus on reduced environmental impact:
| Feature | Benefit |
|---|---|
| Phosphorus-free | Precludes eutrophication concerns |
| EDTA-free | Avoids persistent chelating agents |
| Low aquatic toxicity | Reduced impact on aquatic life |
| Enhanced biodegradability | Faster breakdown in environment |
| No bioaccumulation tendency | Safer for ecosystems |
Products such as RoClean L504 and L511 meet these environmental criteria and are approved for use in highly regulated offshore energy operations (North Sea).
Regulatory Compliance
For drinking water applications, select cleaners with certifications such as:
| Certification | Description |
|---|---|
| ANSI/NSF Standard 60 | Drinking water treatment chemicals — health effects |
| ANSI/NSF/CAN Standard 60 | Canadian equivalent certification |
| Nordic Swan Ecolabel | Nordic environmental certification |
| OSPAR Compliance | Offshore energy industry regulations |
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