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Non-oxidizing biocide specifically formulated for reverse osmosis (RO) membrane protection.
Effective against planktonic and sessile bacteria, including sulfate-reducing bacteria (SRB) and biofilm-forming microorganisms.
Compatible with common RO antiscalants and dispersants, minimizing system incompatibility risks.
Low foaming profile ensures stable operation in high-pressure RO feed systems.
pH-stable across typical RO feed water ranges (pH 4–9), maintaining consistent biocidal activity.
Pre-treatment biocide dosing in industrial reverse osmosis desalination plants.
Biofouling control in power plant boiler feedwater purification systems.
Maintenance dosing for pharmaceutical-grade water purification systems (PW/WFI pre-treatment).
Intermittent shock treatment in municipal and industrial RO facilities experiencing recurrent biofilm issues.
Protective dosing during RO system standby or low-flow operational periods.
| Chemical Type | Quaternary ammonium compound (QAC)-based non-oxidizing biocide |
| Product Form | Aqueous solution |
| Appearance | Clear, light yellow to amber liquid |
| Primary Applications | Reverse osmosis (RO) membrane biofouling control |
| Key Features | Non-oxidizing, low-foaming, membrane-compatible |
| Benefits | Extends RO membrane life, reduces cleaning frequency, maintains flux stability |
| Storage Temperature Range | 5–35 °C (41–95 °F) |
| Shelf Life | 24 months unopened under recommended storage conditions |
Q1: What is the primary mode of action of Dow AQUCAR RO-20 Biocide?
A: Dow AQUCAR RO-20 Biocide functions as a broad-spectrum, non-oxidizing biocide that disrupts microbial cell membranes and interferes with essential metabolic processes, providing effective control of bacteria, fungi, and algae in industrial water systems.
Q2: In which types of industrial systems is Dow AQUCAR RO-20 Biocide typically applied?
A: It is commonly used in recirculating cooling water systems, once-through systems, and process water applications—especially where compatibility with common corrosion inhibitors, scale inhibitors, and dispersants is required.
Q3: Is Dow AQUCAR RO-20 Biocide compatible with other water treatment chemicals?
A: Yes, it demonstrates good compatibility with most conventional water treatment additives—including phosphonates, polymers, and azole-based corrosion inhibitors—when used within recommended dosage ranges and system pH conditions.
Q4: How should Dow AQUCAR RO-20 Biocide be dosed for optimal performance?
A: Dosage depends on system-specific factors such as microbial load, water chemistry, and residence time; it is typically applied at low concentrations via continuous or intermittent feed, with initial shock doses sometimes recommended during commissioning or after microbiological upsets.
Q5: What safety and handling considerations apply to Dow AQUCAR RO-20 Biocide?
A: As with all biocidal products, appropriate personal protective equipment (PPE) such as gloves and eye protection should be worn during handling; consult the Safety Data Sheet (SDS) for detailed guidance on storage, spill response, and first aid measures.
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