RoQuest™ 4000
RoQuest™ 4000 liquid coagulant is an organic polymer and ferric sulfate blend used to enhance the removal of a broad spectrum of inorganic particulates, organics, silt, and colloids in multimedia filters. This multicomponent polymer and iron salt coagulant is formulated for waters with high organics and turbidites higher than 2.0 NTU. Although this product is membrane compatible, overfeeding of pretreatment chemicals is not recommended as it can affect organic and particulate removal. RoQuest 4000 is injected into the feedstream of multimedia and sand filters to enhance filter performance by reducing turbidity and color to produce an improved filtrate that will reduce downstream reverse osmosis (RO) and nanofiltration (NF) membrane fouling. RoQuest 4000 is NSF approved.
VIEW ALL CHEMICALSVIEW SUPPORT SERVICES
Performance Benefits
- Filter-aid properties resist solids breakthrough in direct filter applications.
- Low dosage requirements and effective over a wide pH range.
- Capable of producing RO-quality feedwater in multimedia and sand filters.
- Compatible with polyamide and cellulose acetate RO membranes and Avista™ antiscalants, including Vitec 3000, 3025, 5100, and 7000.
Product Data Sheet
Download Product Information Sheet – RoQuest™ 4000
Safety Data Sheet
If you would like to request a Safety Data Sheet, please email Avista Compliance and Regulatory at regulatory@avistatech.com, call your regional distributor, or click to submit your request.
Resources
Literature
Avista™ | Advisor™Ci Chemical Dosing
Avista™ Advisor™Ci is a proprietary chemical dosing software with complex ion technology to maximize system recovery for even the most challenging applications.
Chemical Dosing, Automotive
Literature
Avista™ | Black Box
The Avista™ Black Box is a proprietary, stand-alone monitoring device that replicates membrane performance without interrupting the reverse osmosis (RO) system operation.
Troubleshooting, General Manufacturing
Literature
Avista™ | OSCAR
Avista™ OSCAR for off-site cleaning and restoration is available when cleaning on-site is not practical or possible.
Cleaning, Food & Beverage
Reverse Osmosis Products
Cleaners
Selecting the right cleaning chemicals extends system run times between cleanings, reduces chemical costs and extends productive membrane life and overall system up-time.
View Cleaners
Biocides
Provides a cost-effective solution for biological fouling, which is one of the most challenging issues faced by operators of polyamide membrane separation systems.
View Biocides
Antiscalants
Inhibits scale while also dispersing colloidal particles. The inhibition and dispersant properties of Vitec products help extend system run times, reduce cleaning frequency, and increase the productive life of RO elements.
View Antiscalants
Can't find the product you are looking for?
Avista technical personnel are available by phone to answer questions or provide site-specific recommendations to system operators on a variety of technical issues including chemical selection and application, system troubleshooting and cleaning techniques.
Technical Support
Troubleshooting & Optimization
